Juniper JNCIA-Junos Pass4sure JN0-102 v2018-03-31 by - Justin 295q

JN0-102.exam.
295q
Number: JN0-102
Passing Score: 800
Time Limit: 120 min
File Version: 1
https://vceplus.com/
Juniper JN0-102
Juniper Networks Certified Internet Associate, Junos (JNCIA-Junos)
Sections
1. Volume A
2. Volume B
3. Volume C
4. Volume D
Exam A
QUESTION 1
-- Exhibit --
[edit]
user@router# show | compare
[edit protocols ospf area 0.0.0.0]
- interface ge-0/0/0.0 {
- disable;
- }
[edit protocols ospf] area
0.0.0.0 { ... }
www.vceplus.com - Download A+ VCE (latest) free Open VCE Exams - VCE to PDF Converter - VCE Exam Simulator - VCE Online
+ area 0.0.0.1 {
+ interface ge-0/0/0.0;
+ }
-- Exhibit --
Referring to the exhibit, what are two differences between the active and candidate configurations? (Choose two.)
A. The ge-0/0/0 interface was added to the candidate configuration.

B. Area 0 was added to the active configuration.
C. Area 1 was added to the candidate configuration.
D. The ge-0/0/0 interface was added to the active configuration.
Correct Answer: AC
Section: Volume A
Explanation
Explanation/Reference:
QUESTION 2
Which mode is used to allow only a single person to edit a configuration?
A. configure batch
B. configure private
C. configure exclusive
D. configure dynamic
Correct Answer: C
Section: Volume A
Explanation
QUESTION 3
Which information would you find using the CLI help function? (Choose two.)
A. message of the day

B. tip of the day
C. explanation for specific system log error messages
D. explanation for specific traceoptions log messages
Correct Answer: BC
Section: Volume A
Explanation
QUESTION 4
Which two statements are true of login classes? (Choose two.)
A. Users can be members of multiple login classes.

B. Login classes define authorization parameters for a user.
C. There are five system-defined login classes.
D. Login class permission flags can be overridden for certain commands.
Correct Answer: BD
Section: Volume A
Explanation
QUESTION 5
Which two statements are true regarding rescue configurations? (Choose two.)
A. Once saved, a rescue configuration is loaded using the rollback 0 command.

B. The rescue configuration must contain the minimal elements necessary to restore network connectivity.
C. A minimal rescue configuration is defined by default.
D. A rescue configuration must include a root password.
Correct Answer: BD
Section: Volume A
Explanation
QUESTION 6
-- Exhibit --
Amnesiac (ttyu0)
login:
-- Exhibit --
Which statement is correct about the information shown in the exhibit?
A. The factory-default configuration is running on the device.

B. The Junos OS was corrupted and did not boot correctly.
C. The device was recently upgraded to a newer version of the Junos OS.
D. The device's memory has been corrupted and no file system is present after a reboot.
Correct Answer: A
Section: Volume A
Explanation
QUESTION 7
Which two statements are true regarding the use of NTP clock synchronization? (Choose two.)
A. The Junos OS supports client, server, and symmetric modes of NTP operation.
B. Synchronized time on all network devices makes log messages more useful for troubleshooting.
C. Authentication methods are not supported.
D. The Junos OS must be used as the primary time reference.
Correct Answer: AB
Section: Volume A
Explanation
QUESTION 8
You are asked to change the cable on interface ge-2/1/3.
Which statement is correct?
A. The cable is found on FPC 1, slot 3, and port 2. B.

The cable is found on slot 1, port 2, and FPC 3. C.
The cable is found on port 3, FPC 2, and slot 1.
D. The cable is found on FPC 1, slot 2, and port 3.
Correct Answer: C
Section: Volume A
Explanation
QUESTION 9
You are asked to change the cable on interface fe-4/2/3.

A. The cable is found on port 4, FPC 2, and slot 3. B.
The cable is found on slot 2, port 3, and FPC 4. C.
The cable is found on FPC 4, slot 3, and port 2.
D. The cable is found on slot 2, FPC 3, and port 4.
Correct Answer: B
Section: Volume A
Explanation
QUESTION 10
You are asked to change the cable on interface ge-0/2/1.
A. The cable is found on slot 2, port 0, and FPC 1. B.

The cable is found on FPC 0, slot 1, and port 2. C.
The cable is found on port 1, slot 0, and FPC 2.
D. The cable is found on slot 2, port 1, and FPC 0.
Correct Answer: D
Section: Volume A
Explanation
QUESTION 11
-- Exhibit -user@router> show
configuration groups { ge-int
{ interfaces { <ge-*> { unit 0
{ familyinet {
address 10.10.12.1/24;
}
}
}
}
}}
...
interfaces { ge-0/0/1
{
unit 0; }
-- Exhibit --
Referring to the exhibit, which two actions would you take to only apply the 10.10.12.1/24 address to the ge-0/0/1.0 interface?
A. Apply the ge-int group to the configuration at the [edit] hierarchy.

B. Apply the ge-int group to the configuration at the [edit interfaces ge-0/0/1] hierarchy.
C. Apply the ge-int group to the configuration at the [edit interfaces ge-0/0/1 unit 0] hierarchy.
D. Apply the ge-int group to the configuration at the [edit interfaces] hierarchy.
Correct Answer: BC
Section: Volume A
Explanation
QUESTION 12
Which interface type connects the control and forwarding planes on an MX Series device?
A. fxp1
B. fxp0
C. me0
D. ae1
Correct Answer: A
Section: Volume A
Explanation
QUESTION 13
Which command is used to restore a Junos device to its default state?
A. load factory-default
B. load override factory-default
C. load replace default
D. load set default
Correct Answer: A
Section: Volume A
Explanation
QUESTION 14
-- Exhibit --
{master:0}[edit interfaces]
user@switch# show
me0 { disable; unit 0
{ familyinet { address
10.1.1.10/24;
}
}}
-- Exhibit --
Administrators report that they are unable to access the management interface of the EX Series device shown in the exhibit.
Which command will resolve this problem?
A. delete me0 disable

B. activate me0
C. set me0 unit 0 enable
D. deactivate me0
Correct Answer: A
Section: Volume A
Explanation
QUESTION 15
Which statement is true about logical units?
A. Logical units are similar to VLANs used by other vendors.

B. A logical unit is required for transit interfaces.
C. Frame Relay encapsulation supports one logical unit.
D. Link speed and duplex are configured in the logical unit properties.
Correct Answer: B
Section: Volume A
Explanation
QUESTION 16
-- Exhibit --
[edit system syslog]
user@router# show
host 152.170.10.10 {
any warning;
}
file changes {
change-log info;
}
-- Exhibit --
Referring to the exhibit, which two statements are true? (Choose two.)
A. Any warning message will be sent to the 152.170.10.10 host.

B. A warning message will be logged when the 152.170.10.10 host logs in.
C. Changes to the device's internal temperatures will be logged.
D. Changes to the configuration will be logged.
Correct Answer: AD
Section: Volume A
Explanation
QUESTION 17
Which command is used to load the rescue configuration?
A. load override rescue

B. rollback rescue
C. load replace rescue-configuration
D. rollback 49
Correct Answer: B
Section: Volume A
Explanation
QUESTION 18
Which two external authentication servers are supported for administrative access to a Junos device? (Choose two.)
A. RADIUS
B. LDAP
C. ACE
D. TACACS+
Correct Answer: AD
Section: Volume A
Explanation
QUESTION 19
-- Exhibit --
user@router> restart
^
unknown command.
-- Exhibit --
You are investigating routing problems on a device running the Junos OS. You receive the error shown in the exhibit when you attempt to restart the routing
process.
Which statement describes the problem?
A. You have typed an invalid command.

B. You must be in configuration mode to restart the routing process.
C. You do not have permission to restart the routing process.
D. You must wait until close of business to restart the routing process, based on user-defined policy.
Correct Answer: C
Section: Volume A
Explanation
QUESTION 20
At which command prompt would you issue the set date <date> command?
A. [edit chassis]
user@router# B.
[edit]
user@router# C.
[edit system]
user@router# D.
user@router>
Correct Answer: D
Section: Volume A
Explanation
QUESTION 21
You must apply the family inet configuration parameter only to Gigabit Ethernet interfaces that are in FPC 2.
Which output applies to this configuration?
A. [edit
groups]user@router#
show
ge-int
{ interfaces
{ <ge-*>
{ unit 0 {
familyinet;
}
}
}
}
B. [edit
groups]user@router#
show
ge-int
{ interface
s { <*>
{ unit 0
{ familyinet
;
}
}
}
}
C. [edit
groups]user@router#
show
ge-int
{ interfaces
{ <*-2/*/*>
{ unit 0 {
familyinet;
}
}
}
}
D. [edit
groups]user@router#
show
ge-int
{ interfaces
{ <ge-2/*>
{ unit 0
{ familyinet;
}
}
}
}
Correct Answer: D
Section: Volume A
Explanation
QUESTION 22
-- Exhibit -[edit
interfaces ge-0/0/1]
user@router# show
unit 100 { vlan-id 100;
family inet {
address 10.1.1.1 /24;
}
}
[edit interfaces ge-0/0/1]

user@router# commit check
'unit 100'
Only unit 0 is valid for this
encapsulation error: configuration check-
out failed -- Exhibit --
Referring to the exhibit, you are unable to commit the configuration for the ge-0/0/1 interface.
What must you do to commit the configuration?
A. You must set the vlan-tagging parameter under the [edit interfaces ge-0/0/1] hierarchy.
B. You must use the rename command to change unit 100 to unit 0.
C. You must set the encapsulation flexible-ethernet-services parameter under the [edit interfaces ge-0/0/1] hierarchy.
D. You must set the encapsulation vlan-ccc parameter under the [edit interfaces ge-0/0/1 unit 100] hierarchy.
Correct Answer: A
Section: Volume A
Explanation
QUESTION 23
You are asked to configure the configuration archival feature on your Junos devices.
Which two transfer methods are available? (Choose two.)
A. TFTP
B. FTP
C. SCP
D. SFTP
Correct Answer: BC
Section: Volume A
Explanation
QUESTION 24
-- Exhibit --
user@router> show system alarms 1
alarms currently active
Alarm time Class Description
2013-09-14 23:54:01 UTC Minor Rescue configuration is not set -
- Exhibit --
Which command will resolve the problem shown in the exhibit?
A. user@router> request system configuration rescue save

B. user@router# request system configuration rescue save
C. user@router> file copy current /config/rescue.conf D. user@router# file copy current /config/rescue.conf
Correct Answer: A
Section: Volume A
Explanation
QUESTION 25
Which command displays only the interfaces that are operationally and administratively up?
A. show interfaces terse | match up

B. show interfaces terse | match down
C. show interfaces terse | except up
D. show interfaces terse | except down
Correct Answer: D
Section: Volume A
Explanation
QUESTION 26
To which directory does the Junos OS write traceoptions files?
A. /var/tmp/
B. /var/
C. /var/log/
D. /var/home/<username>/
Correct Answer: C
Section: Volume A
Explanation
QUESTION 27
Which command gracefully shuts down the Junos OS?
A. request system reboot

B. request system logout
C. request system halt
D. restart gracefully
Correct Answer: C
Section: Volume A
Explanation
QUESTION 28
Which action does the ping 172.18.1.1 size 5 command perform?
A. It sends only five ping requests to the 172.18.1.1 destination.

B. It sends a continuous ping with a packet length of five bytes to the 172.18.1.1 destination.
C. It sends five rapid ping requests to the 172.18.1.1 destination.
D. It sends a continuous rapid ping with a packet length of five bytes to the 172.18.1.1 destination.
Correct Answer: B
Section: Volume A
Explanation
QUESTION 29
Which command displays the current temperature of a Junos device's components?
A. show chassis temperature-thresholds

B. show chassis environment
C. show chassis hardware
D. show chassis alarms
Correct Answer: B
Section: Volume A
Explanation
QUESTION 30
Which command would you use to view interface usage details in real time?
A. show interfaces terse

B. show interfaces extensive
C. monitor interface trafficD. monitor traffic interface
Correct Answer: C
Section: Volume A
Explanation
QUESTION 31
What happens when you issue the ping 172.19.102.2 count 5 command?
A. ICMP echo requests are sent to 172.19.102.2 in five-millisecond intervals.

B. ICMP echo requests are sent to 172.19.102.2 until five packets are dropped.
C. ICMP echo requests are sent to 172.19.102.2 five times.
D. ICMP echo requests are sent continuously to 172.19.102.2 for five seconds.
Correct Answer: C
Section: Volume A
Explanation
QUESTION 32
You are asked to configure real-time performance monitoring (RPM) between two Junos devices to track traffic in your network.
Which two application traffic types can you track? (Choose two.)
A. ICMP
B. SNMP
C. TCP
D. HTTPS
Correct Answer: AC
Section: Volume A
Explanation
QUESTION 33
You are troubleshooting a routing issue and need to check the hop-by-hop path to the 10.10.10.10 destination.
Which three commands would display the path? (Choose three.)
A. user@router# traceroute 10.10.10.10

B. user@router> ping record-route 10.10.10.10
C. user@router>traceroute 10.10.10.10
D. user@router# run traceroute 10.10.10.10
E. user@router# ping record-route 10.10.10.10
Correct Answer: BCD

Section: Volume A
Explanation
QUESTION 34
You are asked to free up disk space so you can update your version of the Junos OS.
Which two commands display the files that will be removed? (Choose two.)
A. user@router> request system storage cleanup

B. user@router> show system storage
C. user@router> request system storage cleanup dry-run
D. user@router> show system storage detail
Correct Answer: AC
Section: Volume A
Explanation
QUESTION 35
Which two commands are used during the password recovery process? (Choose two.)
A. clear system login

B. boot -s
C. recovery
D. delete system root-authentication
Correct Answer: BC
Section: Volume A
Explanation
QUESTION 36
You receive an alarm that your Junos device is experiencing problems regarding temperature.
Which two commands would you use to investigate this problem? (Choose two.)
A. show chassis hardware

B. show chassis temperature-thresholds
C. show chassis pic fpc-slot <value> pic-slot <value>
D. show chassis environment
Correct Answer: BD
Section: Volume A
Explanation
QUESTION 37
-- Exhibit --
user@router# show
unit 0 {
familyinet {
address 172.16.10.100/24;
address 172.16.10.101/24;
}
}
-- Exhibit --
You have two IP addresses configured on the ge-0/0/6 interface, as shown in the exhibit. You want to select the 172.16.10.101 address as the source address for
packets sent from this interface to hosts on a remote subnet.
Which parameter would you add to the 172.16.10.101 address to complete this task?
A. preferred
B. broadcast
C. primary
D. arp 172.16.10.101
Correct Answer: A
Section: Volume A
Explanation
QUESTION 38
Which routing instance type is used to facilitate filter-based forwarding?
A. VRF
B. FBF
C. forwarding
D. no-forwarding
Correct Answer: C
Section: Volume A
Explanation
QUESTION 39
Which two statements are true about static routes in the Junos OS? (Choose two.)
A. Static routes are defined at the [edit routing-instances] hierarchy.
B. Static routes must have a next hop defined.
C. Static routes remain in the routing table until you remove them or until they become inactive.
D. Static routes are learned by neighboring devices and added to their routing tables.
Correct Answer: BC
Section: Volume A
Explanation
QUESTION 40
Which configuration parameter on a Junos device alters the default next-hop resolution behavior of a static route?
A. no-readvertise
B. resolve
C. preference
D. passive
Correct Answer: B
Section: Volume A
Explanation
QUESTION 41
Which two statements are true regarding route preference? (Choose two.)
A. Lower preference values are more preferred than higher preference values.
B. You can modify the default preference values for any of the routing information sources.
C. By default, a static route is more preferred than a RIP route.
D. A static route is always preferred over a direct route.
Correct Answer: AC
Section: Volume A
Explanation
QUESTION 42
Which two statements are true regarding routing tables? (Choose two.)
A. The routing table is populated by the forwarding table.
B. Devices running the Junos OS can accommodate multiple routing tables.
C. Information learned from routing protocols is stored in the routing table.
D. The primary routing table for IPv4 unicast routes is inet.4.
Correct Answer: BC
Section: Volume A
Explanation
QUESTION 43
Which two statements are correct when you use the reject parameter as the next-hop value for a static route? (Choose two.)
A. The packet is dropped and the packet's source is marked with the no-readvertise parameter.
B. The system sends the packet back to the source.
C. The packet is dropped from the network.
D. The system sends an ICMP message back to the source of the packet.
Correct Answer: CD
Section: Volume A
Explanation
QUESTION 44
Which routing table stores IPv4 unicast routes and is used by multicast routing protocols to prevent loops?
A. inet.0
B. inet.1 C. inet.2
D. inet.3
Correct Answer: C
Section: Volume A
Explanation
QUESTION 45
Which source of routing information is preferred by default?
A. OSPF internal
B. OSPF external
C. IS-IS Level 1
D. IS-IS Level 2
Correct Answer: A
Section: Volume A
Explanation
QUESTION 46
What are two routing requirements for a device to communicate with another device? (Choose two.)
A. end-to-end communications path

B. hosts on the same Layer 2 broadcast domain
C. hosts on the same Layer 3 broadcast domain
D. routing information on participating Layer 3 devices
Correct Answer: AD
Section: Volume A
Explanation
QUESTION 47
-- Exhibit --
inet.0: 4 destinations, 4 routes (4 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
172.23.10.0/24 *[Direct/0] 21:59:56
>via ge-0/0/6.0
172.23.10.100/32 *[Local/0] 22:00:10
Local via ge-0/0/6.0
172.23.12.0/24 *[Static/5] 00:01:36
>to 172.23.10.1 via ge-0/0/6.0
172.23.15.0/24 *[Static/5] 00:01:36
>to 172.23.10.1 via ge-0/0/6.0 -
- Exhibit --
Users are unable to access resources in the 172.23.14.0/24 subnet. Referring to
the exhibit, which two actions would solve this problem? (Choose two.)
A. Configure a separate routing instance.

B. Configure a default static route.
C. Configure a static route to 172.23.14.0/24.
D. Configure the existing routes to resolve the indirect next hop.
Correct Answer: BC
Section: Volume A
Explanation
QUESTION 48
What are three types of routing instances? (Choose three.)
A. VPN
B. virtual-router
C. policy
D. VRF
E. forwarding
Correct Answer: BDE

Section: Volume A
Explanation
QUESTION 49
Which two statements describe the forwarding table in the Junos OS? (Choose two.)
A. The forwarding table contains all known routes.

B. The forwarding table stores a subset of information from the routing table.
C. Junos devices use the forwarding table to compare incoming packets against existing entries to determine the next hop.
D. If multiple matches exist, the forwarding table uses the least-specific entry to forward packets toward the destination.
Correct Answer: BC
Section: Volume A
Explanation
QUESTION 50
-- Exhibit --
[edit routing-options]
user@router# show static
{ route 0.0.0.0/0 { next-hop
10.1.1.1; qualified-next-hop
10.1.1.254 { preference 4;
}
}
}
-- Exhibit --
Assuming both paths shown in the exhibit are available, which statement is correct?
A. Traffic matching the default route will use 10.1.1.1 as the next hop.
B. Traffic matching the default route will use 10.1.1.254 as the next hop.
C. Traffic matching the default route will be load-balanced per packet across both next hops.
D. Traffic matching the default route will be load-balanced per flow across both next hops.
Correct Answer: B
Section: Volume B
Explanation
QUESTION 51
Which command will silently drop a matching packet?
A. set routing-options static route 10.1.1.1/32 no-retain

B. set routing-options static route 10.1.1.1/32 discard
C. set routing-options static route 10.1.1.1/32 reject
D. set routing-options static route 10.1.1.1/32 passive
Correct Answer: B
Section: Volume B
Explanation
QUESTION 52
Which command will drop a matching packet and send out a notification message?
A. set routing-options static route 10.1.1.1/32 no-retain

B. set routing-options static route 10.1.1.1/32 discard
C. set routing-options static route 10.1.1.1/32 reject
D. set routing-options static route 10.1.1.1/32 no-install
Correct Answer: C
Section: Volume B
Explanation
QUESTION 53
Which command will show the best paths that are installed in the PFE?
A. show route
B. show route active-path
C. show route private
D. show route forwarding-table
Correct Answer: D
Section: Volume B
Explanation
QUESTION 54
Which command displays the egress interfaces selected on the PFE for destination prefixes?
A. show route forwarding-table

B. show route table
C. show route table extensive
D. show pfefwdd
Correct Answer: A
Section: Volume B
Explanation
QUESTION 55
Which route filter match type only matches prefixes greater than the defined prefix?
A. exact
B. upto
C. longer
D. orlonger
Correct Answer: C
Section: Volume B
Explanation
QUESTION 56
In which hierarchy are routing policies defined?
A. [edit policy-options]
B. [edit routing-options]
C. [edit forwarding-options]
D. [edit protocols]
Correct Answer: A
Section: Volume B
Explanation
QUESTION 57
What are two default routing policies on Junos devices? (Choose two.)
A. The BGP import policy accepts all BGP routes.

B. The BGP export policy rejects all active BGP routes.
C. The OSPF import policy accepts all OSPF routes.
D. The OSPF export policy accepts all active OSPF routes.
Correct Answer: AC
Section: Volume B
Explanation
QUESTION 58
Which statement is correct about policies in the Junos OS?
A. Import policies are used to filter routes from the routing table to the forwarding table.
B. Import policies are used to filter routes destined for the routing table.
C. Import policies are used to filter routes being sent to neighboring devices.
D. Import policies are used to filter traffic entering the device.
Correct Answer: B
Section: Volume B
Explanation
QUESTION 59
Which statement is correct about policies in the Junos OS?
A. Export policies are used to filter routes from the RE forwarding table to the PFE forwarding table.
B. Export policies are used to filter routes destined for the routing table.
C. Export policies are used to filter routes being sent to neighboring devices.
D. Export policies are used to filter traffic leaving the device.
Correct Answer: C
Section: Volume B
Explanation
QUESTION 60
What is the default action for firewall filters?
A. accept
B. reject
C. discard
D. log
Correct Answer: C
Section: Volume B
Explanation
QUESTION 61
What is the purpose of unicast reverse path forwarding?
A. to validate packet receipt on interfaces where the traffic should be received

B. to forward packets out the interfaces where the traffic should be received
C. to forward packets out the interfaces where the traffic should be sent
D. to validate packet receipt on interfaces where the traffic should be sent
Correct Answer: A
Section: Volume B
Explanation
QUESTION 62
Which two statements are correct about firewall filters in the Junos OS? (Choose two.)
A. Firewall filters are stateless.

B. Firewall filters are used to control routing information that is exchanged between devices.
C. Firewall filters are used to control traffic passing through the device.
D. Firewall filters can only be applied to traffic entering the device.
Correct Answer: AC
Section: Volume B
Explanation
QUESTION 63
Which two firewall filter actions will terminate the processing and evaluation of a packet? (Choose two.)
A. permit
B. accept C. deny
D. discard
Correct Answer: BD
Section: Volume B
Explanation
QUESTION 64
Which two statements are true regarding routing policy processing? (Choose two.)
A. The Junos OS verifies the match criteria of each policy in order and performs the associated action when a match occurs.
B. Policies are evaluated from right to left as displayed in the Junos OS configuration file.
C. Polices are evaluated based on the order in which they are applied to a routing protocol.
D. Policy processing stops once the last statement in the policy is evaluated.
Correct Answer: AC
Section: Volume B
Explanation
QUESTION 65
What are three firewall filter terminating actions? (Choose three.)
A. accept
B. log
C. reject
D. discard
E. drop
Correct Answer: ACD

Section: Volume B
Explanation
QUESTION 66
Which command will apply a policy to redistribute static routes into OSPF?
A. set protocols ospf import static-routes

B. set protocols ospf export static-routes
C. set routing-options static defaults readvertise
D. set routing-options static route 0.0.0.0/0 readvertise
Correct Answer: B
Section: Volume B
Explanation
QUESTION 67
-- Exhibit --
[edit firewall family inet filter input-filter]
user@router# show term my-policy
{ from { source-address {
151.43.62.0/24;
}
}
then { count;
}
}
term else { then
{
discard;
}
}
-- Exhibit --
Which two tasks are accomplished by the firewall filter shown in the exhibit? (Choose two.)
A. Traffic matching the my-policy term will be counted and accepted.

B. Traffic matching the my-policy term will be counted and discarded.
C. Traffic not matching the my-policy term will be discarded.
D. Traffic not matching the my-policy term will be accepted.
Correct Answer: AC
Section: Volume B
Explanation
QUESTION 68
-- Exhibit --
[edit policy-options]
user@router# show policy-
statement my-policy { term 1
{ from { route-filter
172.27.0.0/24 longer;
}
}
then reject;
}
-- Exhibit --
Which statement is correct about the policy shown in the exhibit?
A. All routes are accepted.

B. All routes are rejected.
C. A 172.27.0.0/24 route will be accepted.
D. A 172.27.0.0/16 route will be accepted.
Correct Answer: B
Section: Volume B
Explanation
QUESTION 69
-- Exhibit -policy-options
{
policy-statement example-pol {
term 1 { from
{ protocol static; route-filter
10.1.0.0/16 exact;
}
then { preference
6;
accept;
}
}
term 2 { from { protocol static;
route-filter 10.1.1.0/24 longer;
}
then { preference
7; accept;
}
}
term 3 { from
{ protocol
static;
route-filter 10.1.0.0/16 upto /24;
}
then { preference
8; accept;
}
}
term 4 {
then accept;
}
}
}
-- Exhibit --
Referring to the exhibit, if the static route with prefix 10.1.1.0/24 is evaluated against the routing policy, which preference value will be set?
A. The preference will be 6. B.

The preference will be 7.
C. The preference will be 8.
D. The preference will be the default for static routes.
Correct Answer: C
Section: Volume B
Explanation
QUESTION 70
-- Exhibit --
statement block-routes { term
1 { from {
}
then reject;
}
term 2 { then
accept;
}
}
-- Exhibit --
You are asked to ensure that your device does not accept any prefixes within the 172.27.0.0/24 network. You have applied the policy shown in the exhibit, but the
172.27.0.0/24 route is still present on your device.
Which configuration will resolve this problem?
A. [edit policy-options policy-statement block-routes] user@router#

set term 1 from route-filter 172.27.0.0/24 orlonger B. [edit policy-
options policy-statement block-routes] user@router# set term 1
from route-filter 172.27.0.0/24 upto /30 C. [edit policy-options
policy-statement block-routes] user@router# set term 2 from route-
filter 172.27.0.0/24 longer D. [edit policy-options policy-statement
block-routes] user@router# set term 2 from route-filter
172.27.0.0/24 orlonger
Correct Answer: A
Section: Volume B
Explanation
QUESTION 71
-- Exhibit --
[edit policy-options policy-statement my-policy]
user@router# show
term 1 { from {
route-filter 192.168.0.0/16 orlonger;
}
then accept;
}
-- Exhibit --
Referring to the exhibit, which three networks match the policy? (Choose three.)
A. 192.168.0.0/16
B. 192.168.0.0/15
C. 192.168.65.0/24
D. 192.167.0.0/17
E. 192.168.24.89/32
Correct Answer: ACE

Section: Volume B
Explanation
QUESTION 72
-- Exhibit -firewall
{ filter select-telnet
{ term 1 { from {
source-address {
10.0.0.0/8;
}
} then log;
}
term 2 { from
{ protocoltcp
;
port telnet;
}
then { syslog;
reject;
}
}
term 3 { from
{
source-address {
10.1.1.1/32; }
protocoltcp;
port telnet;
}
then { sample;
accept;
}
}
}}
-- Exhibit --
A Telnet session is initiated from host 10.1.1.1.
What will happen when it is processed by the firewall filter shown in the exhibit?
A. The packet will be accepted and logged.

B. The packet will be discarded and logged.
C. The packet will be rejected and a syslog message generated.
D. The packet will be accepted and sampled.
Correct Answer: A
Section: Volume B
Explanation
QUESTION 73
-- Exhibit --
user@router# show term 1 { from { route-filter
192.168.0.0/16 prefix-length-range /20-/24;
}
then accept;
}
-- Exhibit --
Referring to the exhibit, which three networks match the policy? (Choose three.)
A. 192.168.0.0/20
B. 192.168.0.0/16
C. 192.168.128.0/18
D. 192.168.128.0/21
E. 192.168.64.0/24
Correct Answer: ADE

Section: Volume B
Explanation
QUESTION 74
-- Exhibit --
user@router# show term
reject {
then reject;
}
term match { from
{ protocolbgp;
route-filter 10.10.10.0/24 exact;
}
}
-- Exhibit --
Referring to the exhibit, you must move the match term above the reject term.
Which command would accomplish this task?
A. set term match from policy reject

B. up 1 copy policy-statement my-policy term match to term before-reject
C. activate term match to policy
D. insert term match before term reject
Correct Answer: D
Section: Volume B
Explanation
QUESTION 75
-- Exhibit –
-- Exhibit --
Which command produces the output shown in the exhibit?

A. show firewall counter telnet-counter filter select-telnet
B. show firewall log
C. show log messages
D. show services accounting usage
Correct Answer: B
Section: Volume B
Explanation
QUESTION 76
Which two statements are true about firewall filter configurations? (Choose two.)
A. Multiple action modifiers can be included in the same term.

B. Only a single action modifier can be included in the same term.
C. The default term within a firewall filter uses the discard action.
D. The default term within a firewall filter uses the reject action.
Correct Answer: AC
Section: Volume B
Explanation
QUESTION 77
Which two statements are true about firewall filter configurations? (Choose two.)
A. Multiple action modifiers can be included in the same term.

B. Only a single action modifier can be included in the same term.
C. If an action modifier exists without a terminating action, matching packets will be accepted.
D. If an action modifier exists without a terminating action, matching packets will be discarded.
Correct Answer: AC
Section: Volume B
Explanation
QUESTION 78
You have configured a firewall filter with a single term matching on packets with a source address in the 10.0.0.0/24 subnet. This term only includes the count
action.
Which two statements are true about traffic evaluated by this firewall filter? (Choose two.)
A. Packets outside the 10.0.0.0/24 subnet will be accepted.

B. Packets outside the 10.0.0.0/24 subnet will be rejected. C. Packets outside the 10.0.0.0/24 subnet will be
counted.
D. Packets outside the 10.0.0.0/24 subnet will not be counted.
Correct Answer: BD
Section: Volume B
Explanation
QUESTION 79
You have configured a firewall filter with a single term matching on packets with a source address in the 10.0.0.0/24 subnet. This term only includes the count
action.
Which two statements are true about traffic evaluated by this firewall filter? (Choose two.)
A. Packets within the 10.0.0.0/24 subnet will be accepted.

B. Packets within the 10.0.0.0/24 subnet will be rejected. C. Packets within the 10.0.0.0/24 subnet will be
counted.
D. Packets within the 10.0.0.0/24 subnet will not be counted.
Correct Answer: AC
Section: Volume B
Explanation
QUESTION 80
The IP address 192.168.100.1 belongs to which class of IP address space?
A. Class A
B. Class B
C. Class C
D. Class D
Correct Answer: C
Section: Volume B
Explanation
QUESTION 81
For the interface ge-1/2/3.4, what does the "ge" represent?
A. Gigabit Ethernet
B. SONET/SDH
C. Aggregated Ethernet
D. GRE
Correct Answer: A
Section: Volume B
Explanation
QUESTION 82
Which word starts a command to add configuration on a Junos device?
A. get
B. set
C. put
D. show
Correct Answer: B
Section: Volume B
Explanation
QUESTION 83
Which word starts the command to remove configuration elements on a Junos device?
A. undo
B. remove
C. delete
D. unset
Correct Answer: C
Section: Volume B
Explanation
QUESTION 84
After editing to your device’s configuration, which command must you enter to activate the configuration changes?
A. set
B. copy candidate active
C. apply-config
D. commit
Correct Answer: D
Section: Volume B
Explanation
QUESTION 85
What is the decimal equivalent of 00000110?
A. 2 B.
4
C. 6
D. 11
Correct Answer: C
Section: Volume B
Explanation
QUESTION 86
Which CLI mode allows you to make configuration changes?
A. enable mode
B. configuration mode
C. operational mode
D. active mode
Correct Answer: B
Section: Volume B
Explanation
QUESTION 87
Which command do you use to navigate to [edit interfaces]?
A. cd interfaces
B. dir edit interfaces
C. edit interfaces
D. interfaces
Correct Answer: C
Section: Volume B
Explanation
QUESTION 88
Which command will display the contents of the forwarding table?
A. show route forwarding-table

B. show forwarding
C. show configuration
D. show interfaces
Correct Answer: A
Section: Volume B
Explanation
QUESTION 89
Which operating system do Juniper Networks MX Series routers use?
A. IOS
B. MX-OS
C. UNIX
D. Junos OS
Correct Answer: D
Section: Volume B
Explanation
QUESTION 90
Which command do you use to go from the shell prompt to the CLI prompt?
A. run cli
B. cli
C. start cli
D. edit
Correct Answer: B
Section: Volume B
Explanation
QUESTION 91
Which account is used to access a Junos device in factory-default configuration?
A. root
B. admin
C. juniper
D. user
Correct Answer: A
Section: Volume B
Explanation
QUESTION 92
Which statement is true regarding the Junos OS?
A. Each process runs in its own protected memory space ensuring that one process cannot directly interfere with another.
B. Processes share memory space but use separate ASICs so that one process cannot directly interfere with another.
C. A central processor called the IP2 Chip dynamically assigns memory as process needs fluctuate.
D. The memory management daemon (mmd) is responsible for allocating new memory for processes as they request it.
Correct Answer: A
Section: Volume B
Explanation
QUESTION 93
A. The Junos kernel is based on the Solaris operating system.

B. The Junos kernel is based on the GNU Zebra operating system.
C. The Junos kernel is completely original and not based on any other operating system.
D. The Junos kernel is based on the FreeBSD UNIX operating system.
Correct Answer: D
Section: Volume B
Explanation
QUESTION 94
A. All platforms running the Junos OS use the same source code base.
B. All platforms running the Junos OS use the same PFE.
C. All platforms running the Junos OS use a hard drive to optimize syslog data storage.
D. All platforms running the Junos OS use a separate process with protected memory space for each routing protocol.
Correct Answer: A
Section: Volume B
Explanation
QUESTION 95
A. All platforms running the Junos OS have identical factory-default configurations.
B. All platforms running the Junos OS use the IP2 processor for longest-match lookup.
C. All platforms running the Junos OS use the same source code base.
D. All platforms running the Junos OS use FXP1 for communication between control and forwarding planes.
Correct Answer: C
Section: Volume B
Explanation
QUESTION 96
What are two Junos processes? (Choose two.)
A. OSPF SPF daemon (ospfd)

B. SNMP daemon (snmpd)
C. BGP daemon (bgpd)
D. Routing protocols daemon (rpd)
Correct Answer: BD
Section: Volume B
Explanation
QUESTION 97
On which operating system is the Junos OS based?
A. ScreenOS
B. Solaris
C. FreeBSD
D. HP-UX
Correct Answer: C
Section: Volume B
Explanation
QUESTION 98
What is an advantage of multiple software processes running in the Junos OS?
A. Each process has its own protected memory space.

B. Each process is started manually by the user at boot.
C. All processes are dependent on each other.
D. Multiple processes allow each routing protocol to be independent.
Correct Answer: A
Section: Volume B
Explanation
QUESTION 99
Which two statements are true regarding the role of the Routing Engine (RE)? (Choose two.)
A. The RE controls and monitors the chassis.

B. The RE manages the Packet Forwarding Engine (PFE).
C. The RE receives a copy of the forwarding table from the forwarding plane.
D. The RE implements class of service (COS).
Correct Answer: AB
Section: Volume B
Explanation
QUESTION 100
A. All platforms running the Junos OS separate the functions of learning and flooding.
B. All platforms running the Junos OS separate the functions of control and forwarding.
C. All platforms running the Junos OS separate the functions of routing and bridging.
D. All platforms running the Junos OS separate the functions of management and routing.
Correct Answer: B
Section: Volume B
Explanation
QUESTION 101
Which statement is true about the forwarding plane?
A. The forwarding plane is the intelligence of the platform.

B. The forwarding plane is based on an X86 architecture.
C. The forwarding plane maintains the routing tables, bridging table, and primary forwarding table.
D. The forwarding plane implements policers, stateless firewall filters, and class of service.
Correct Answer: D
Section: Volume B
Explanation
QUESTION 102
Which statement is true regarding the forwarding plane?
A. The forwarding plane is contained within the Routing Engine (RE).

B. The forwarding plane processes and evaluates exception traffic.
C. The forwarding plane contains the Packet Forwarding Engine (PFE).
D. The forwarding plane is not present on all platforms running the Junos OS.
Correct Answer: C
Section: Volume B
Explanation
QUESTION 103
Which statement is true about the forwarding plane?
A. It uses ASICs for increased performance.

B. It is the intelligence of the platform.
C. It maintains the routing tables.
D. It is based on an x86 architecture.
Correct Answer: A
Section: Volume B
Explanation
QUESTION 104
By default, which character indicates the configuration mode prompt?
A. #
B. >
C. $
D. %
Correct Answer: A
Section: Volume B
Explanation
QUESTION 105
By default, which character indicates the UNIX shell prompt?
A. #
B. >
C. $
D. %
Correct Answer: D
Section: Volume B
Explanation
QUESTION 106
How do you ping from configuration mode?
A. [edit interfaces] user@router#

run ping 1.1.1.1 B. [edit interfaces]
user@router# ping 1.1.1.1 C. [edit
interfaces] user@router# up ping
1.1.1.1 D. [edit interfaces]
user@router# exit ping 1.1.1.1
Correct Answer: A
Section: Volume B
Explanation
QUESTION 107
Which two commands will successfully create ping traffic? (Choose two.)
A. user@router# ping 10.10.10.1

B. user@router# run ping 10.10.10.1
C. user@router> ping 10.10.10.1
D. user@router> request ping 10.10.10.1
Correct Answer: BC
Section: Volume B
Explanation
QUESTION 108
Which command is used to display all output at once?
A. show interfaces | all

B. show interfaces | no-more
C. show interfaces | hold
D. show interfaces | display-all
Correct Answer: B
Section: Volume B
Explanation
QUESTION 109
Which CLI command is used to display output one page at a time?
A. user@router> show interfaces | no-more

B. user@router> show interfaces | trim
C. user@router> show interfaces
D. user@router> show interfaces | display
Correct Answer: C
Section: Volume B
Explanation
QUESTION 110
What information does the help reference command provide?
A. A brief description of commands and their default values

B. The serial number and version number of the device used to open a support case with JTAC
C. A list of all the active hardware alarms on the device
D. A display of the current configuration while in operational mode
Correct Answer: A
Section: Volume B
Explanation
QUESTION 111
Which command do you use to identify the meaning of a syslog message?
A. help log messages

B. man log messages
C. man syslog
D. help syslog
Correct Answer: D
Section: Volume B
Explanation
QUESTION 112
You want to log in to the router and make a configuration change.
After logging in as the root user, what is the next command you must enter?
A. enable
B. configure
C. edit
D. cli
Correct Answer: D
Section: Volume B
Explanation
QUESTION 113
You are configuring a new BGP neighbor and want to view the configuration of interface ge-0/0/0.42.
Which command do you use to achieve this result?
A. [edit protocols bgp group external]

user@router# set interfaces ge-0/0/0.42 B. [edit
protocols bgp group external] user@router# edit
show interfaces ge-0/0/0.42 C. [edit protocols bgp
group external] user@router# top show interfaces
ge-0/0/0.42 D. [edit protocols bgp group external]
user@router# show interfaces ge-0/0/0.42
Correct Answer: C
Section: Volume B
Explanation
QUESTION 114
You are at the top of the hierarchy and must configure OSPF on interface so-0/0/0 unit 100.
Which two achieve this result? (Choose two.)
A. set protocolssetospf area 0 set interface so-0/0/0.100

B. set protocols ospf area 0 interface so-0/0/0.100
C. edit protocols ospf interface so-0/0/0.100
D. edit protocols ospf area 0
set interface so-0/0/0.100
Correct Answer: BD
Section: Volume B
Explanation
QUESTION 115
Which CLI keyboard sequence allows you to move the cursor to the beginning of the line?
A. Ctrl+e
B. Ctrl+p
C. Ctrl+w
D. Ctrl+a
Correct Answer: D
Section: Volume B
Explanation
QUESTION 116
Which two statements apply when a user has entered private configuration mode by typing configure private? (Choose two.)
A. All users have their own active configuration.

B. All users have their own private candidate configuration.
C. When a user commits, all nonconflicting changes made by all users are committed.
D. When a user commits, only the user's own changes are committed.
Correct Answer: BD
Section: Volume B
Explanation
QUESTION 117
Which two statements are true when using the configure exclusive CLI command? (Choose two.)
A. Multiple users can enter configuration mode and have their own private configuration.
B. When a user commits, only the user's changes are committed.
C. A message indicates which other users are in configuration mode and what portion of the configuration they are editing.
D. Only a single user can edit the configuration.
Correct Answer: BD
Section: Volume B
Explanation
QUESTION 118
How do you save the current candidate configuration in the set format to permanent storage media?
A. [edit] user@router# show | set | save /var/tmp/current.conf B.

[edit] user@router# show | compare set | save
/var/tmp/current.conf C. [edit] user@router# save
/var/tmp/current.conf | display set D. [edit] user@router# show |
display set | save /var/tmp/current.conf
Correct Answer: D
Section: Volume B
Explanation
QUESTION 119
You configured an interface with an IP address and committed the change. You then committed a change that added an exception in a firewall filter to allow this
network through the filter. You realize that this work was done on the wrong router.
How do you undo all these changes?
A. rollback 2
B. rollback 1
C. rollback 0
D. rollback 3
Correct Answer: A
Section: Volume B
Explanation
QUESTION 120
You have just issued the command user@router# save current.conf.
Assuming the default settings, where in the file system is current.conf saved?
A. /var/tmp/
B. /var/config/saved/
C. /var/home/user/
D. /config/
Correct Answer: C
Section: Volume B
Explanation
QUESTION 121
Using the command, user@router# load override latest.conf, where in the file system will the latest.conf be located?
A. /var/home/user/
B. /var/config/saved/
C. /var/tmp/
D. /config/
Correct Answer: A
Section: Volume B
Explanation
QUESTION 122
What does the command show | compare rollback 1 display?
A. the difference between the current candidate configuration and the candidate configuration from one commit ago
B. the difference between the current active configuration and the current candidate configuration
C. the difference between the current active configuration and the active configuration from one commit ago
D. the difference between the current candidate configuration and the archived configuration from one commit ago
Correct Answer: D
Section: Volume B
Explanation
QUESTION 123
How do you write the current candidate configuration to the permanent storage media?
A. [edit] user@router# save

/var/tmp/current.conf B. [edit] user@router#
write /var/tmp/current.conf C. [edit]
user@router# commit /var/tmp/current.conf D.
[edit] user@router# dump /var/tmp/current.conf
Correct Answer: A
Section: Volume B
Explanation
QUESTION 124
Which J-Web tab do you use to add licenses to the device?
A. "Configure"
B. "Troubleshoot"
C. "Monitor"
D. "Maintain"
Correct Answer: D
Section: Volume B
Explanation
QUESTION 125
Which three functions are available under the "Maintain" tab of J-Web? (Choose three.)
A. download and delete log files

B. view real-time statistics of interfaces
C. reboot the system
D. view and add licenses
E. edit security settings
Correct Answer: ACD

Section: Volume B
Explanation
QUESTION 126
Which command is used to enable access to J-Web using HTTPS?
A. set system remote-access profile https
B. set services remote-access profile j-web-https
C. set system services web-management https
D. set services web-management j-web-https
Correct Answer: C
Section: Volume B
Explanation
QUESTION 127
How can you verify that you have correctly configured SSH access to your Junos device?
A. user@router# show system services

B. user@router> show configuration services
C. user@router# show configuration system services
D. user@router# show system login
Correct Answer: A
Section: Volume B
Explanation
QUESTION 128
What must be configured prior to the first commit after factory defaults are loaded?
A. root authentication
B. default gateway
C. host name
D. management services
Correct Answer: A
Section: Volume B
Explanation
QUESTION 129
Which two statements are true about the rescue configuration file? (Choose two.)
A. It must include a root password.

B. It is rollback file number 50, and you can recover it by issuing rollback 50.
C. It is created by issuing request system configuration rescue save.
D. It is updated automatically when you commit.
Correct Answer: AC
Section: Volume B
Explanation
QUESTION 130
Which command will save the current active configuration as the rescue configuration?
A. user@router# save | rescue

B. user@router> request system configuration rescue save
C. user@router# save rescue configuration
D. user@router> file save rescue-configuration
Correct Answer: B
Section: Volume B
Explanation
QUESTION 131
Which command will delete the current rescue configuration?
A. user@router# system delete configuration rescue

B. user@router> request system configuration rescue delete
C. user@router# delete rescue configuration
D. user@router> file delete rescue-configuration
Correct Answer: B
Section: Volume B
Explanation
QUESTION 132
Which two statements are true about the primary address on an interface? (Choose two.)
A. It is the address used by default as the local address for broadcast and multicast packets sourced locally and sent out of the interface.
B. You use the primary address when you have multiple IP addresses belonging to the same subnet on the same interface.
C. It can be useful for selecting the local address used for packets sent out of unnumbered interfaces when multiple non-127 addresses are configured on the
loopback interface.
D. By default, the primary address on an interface is selected as the numerically highest local address configured on the interface.
Correct Answer: AC
Section: Volume B
Explanation
QUESTION 133
What are three physical interface properties? (Choose three.)
A. payload scrambling
B. virtual circuit identifier
C. FCS
D. link speed
E. IP address
Correct Answer: ACD

Section: Volume B
Explanation
QUESTION 134
Which two commands may be used when configuring an IP address for a Gigabit Ethernet interface? (Choose two.)
A. set interfaces ge-0/0/0.0 address 10.1.1.1/24
B. set interfaces ge-0/0/0.0 family inet address 10.1.1.1/24
C. set interfaces ge-0/0/0 unit 0 family inet address 10.1.1.1/24
D. set interfaces ge-0/0/0 address 10.1.1.1/24
Correct Answer: BC
Section: Volume B
Explanation
QUESTION 135
You accidentally configured interface so-0/0/0.0 with /32 instead of /30.
Which two solutions could you use to correct this configuration? (Choose two.)
A. [edit interfaces so-0/0/0.0] user@router# replace family inet address /32 with /30 B.
[edit interfaces so-0/0/0.0] user@router# rename family inet address /32 to address /30
C. [edit] user@router# replace interface so-0/0/0.0 family inet address /32 with address
/30 D. [edit interfaces so-0/0/0.0] user@router# delete family inet address
user@router# set family inet address /30
Correct Answer: BD
Section: Volume B
Explanation
QUESTION 136
Which three user authentication methods are supported by the Junos OS? (Choose three.)
A. RADIUS
B. CHAP
C. local user database
D. TACACS+
E. PAP
Correct Answer: ACD
Section: Volume B
Explanation
QUESTION 137
Which user authentication method is supported by the Junos OS as a last resort alternative?
A. TACACS+
B. RADIUS
C. local user database
D. enable password
Correct Answer: C
Section: Volume B
Explanation
QUESTION 138
Which two external authentication methods are supported by the Junos OS for user authentication? (Choose two.)
A. RADIUS
B. KERBEROS
C. IPsec
D. TACACS+
Correct Answer: AD
Section: Volume B
Explanation
QUESTION 139
The authentication order configuration on your M120 includes the settings tacplus and radius (in that order), but does not include the password parameter. You
attempt to log in to the device, but the network containing the authentication servers is currently down.
Which statement is true about your login attempt?
A. The login attempt is rejected.

B. The login attempt is automatically accepted after the authentication servers’ timeout value is reached, since there are no other authentication methods
available.
C. The M120 automatically tries authenticating locally on the device after the authentication servers’ timeout value is reached.
D. The M120 automatically tries authenticating locally on the device before using external authentication.
Correct Answer: C
Section: Volume B
Explanation
QUESTION 140
You have been asked to configure a login class that will permit its users to view and edit the configuration. The class should allow a user to view the entire
configuration, but only to edit the interfaces, routing-options, and protocols hierarchies.
Which configuration accomplishes this login class?

A. permissions [ view-configuration clear network view ]; allow-configuration
"(interfaces) | (routing-options) | (policy-options) | (protocols)"; B. permissions
[ view-configuration clear network view ]; allow-commands "(configure)";
C. permissions [ view-configuration clear network view ]; allow-
commands "(configure)";
allow-configuration "(interfaces) | (routing-options) |
(protocols)"; D. permissions [ clear network view ]; allow-
commands "(configure)"; allow-configuration "(interfaces) | (routing-
options) | (protocols)";
Correct Answer: C
Section: Volume B
Explanation
QUESTION 141
Which command do you use to show active alarms?
A. show hardware state

B. show system alarms
C. show chassis state
D. show services alarms
Correct Answer: B
Section: Volume C
Explanation
QUESTION 142
Which command do you use as a valid way to view the PICs within a router as well as the PICs' serial numbers?
A. show chassis hardware

B. show chassis interfaces
C. show chassis pic
D. show chassis inventory
Correct Answer: A
Section: Volume C
Explanation
QUESTION 143
What is a valid option when using the ping command?
A. packet loss
B. packet size
C. CRC
D. TCP port
Correct Answer: B
Section: Volume C
Explanation
QUESTION 144
You issue the ping interface t1-1/1/0 bypass-routing count 1000 rapid command.
A. The count parameter creates a counter that you can view with the show firewall command.
B. The count parameter allows the router to count the number of pings for logging purposes.
C. The count parameter allows the router to pause for 1000 seconds before sending out a ping.
D. The count parameter allows the router to send out 1000 pings and then stop.
Correct Answer: D
Section: Volume C
Explanation
QUESTION 145
You issue the ping interface t1-1/1/0 1.1.1.1 bypass-routing count 1000 rapid command.
A. The bypass-routing parameter is used to test the density on the T1 line.

B. The bypass-routing parameter cannot be used on a T1 interface.
C. The bypass-routing parameter allows you to ping a host through an interface that has no route through it.
D. The bypass-routing parameter allows you to ping a local WAN interface without generating any outbound traffic.
Correct Answer: C
Section: Volume C
Explanation
QUESTION 146
You issue the command telnet interface ge-1/1/0 10.10.10.1 source 192.168.100.1 bypass-routing.
A. The bypass-routing parameter is ignored when using private IP addressing.

B. The telnet session will have the source IP address 10.10.10.1.
C. The telnet session will connect to the neighboring device’s interface ge-1/1/0.
D. Return traffic for the telnet session might not arrive at interface ge-1/1/0.
Correct Answer: D
Section: Volume C
Explanation
QUESTION 147
Which command do you issue to upgrade the current software on Junos devices?
A. request system software replace
B. request system software install
C. request system software add
D. request system software upgrade
Correct Answer: C
Section: Volume C
Explanation
QUESTION 148
Which two commands allow you to return to a previous version of software on the device? (Choose two.)
A. request system software add

B. request system software downgrade
C. request system software replace
D. request system software rollback
Correct Answer: AD
Section: Volume C
Explanation
QUESTION 149
Which CLI command do you use to determine which files are cleanup candidates?
A. request system storage cleanup candidates

B. request system services storage candidates
C. request system services candidate cleanup
D. request system storage cleanup dry-run
Correct Answer: D
Section: Volume C
Explanation
QUESTION 150
Which three steps are part of the root password recovery process? (Choose three.)
A. Reboot the device.

B. Run the recovery script.
C. Reset the root password.
D. Reset the user passwords.
E. Load factory-default configuration.
Correct Answer: ABC

Section: Volume C
Explanation
QUESTION 151
During a password recovery, what is the next step after configuring the system to boot into single-user mode?
A. Reset the root password.

B. Press the space bar.
C. Type recovery.
D. Press the "Enter" key.
Correct Answer: C
Section: Volume C
Explanation
QUESTION 152
Which statement is true regarding the password-recovery process?
A. You must have a console connection.

B. You cannot set the console port to an insecure mode.
C. You must press the Enter key so that you can boot into single-user mode.
D. When prompted to enter the full pathname of the shell, you must press the Enter key.
Correct Answer: A
Section: Volume C
Explanation
QUESTION 153
What is the role of route preference?
A. It is used as a tiebreaker when the same prefix is available through multiple protocols.
B. It is used to determine the preferred path to a given destination.
C. It is used to select the best route between multiple equal-cost paths.
D. It is used to select which routing table to use for forwarding.
Correct Answer: A
Section: Volume C
Explanation
QUESTION 154
Which two statements are correct regarding default protocol preference values? (Choose two.)
A. OSPF internal routes have a lower preference than static routes.

B. Both direct and local routes have the same preference value.
C. OSPF's preference value is lower than BGP.
D. OSPF has a single preference value for both internal and external routes.
Correct Answer: BC
Section: Volume C
Explanation
QUESTION 155
What is the default route preference value for EBGP?
A. 20
B. 100
C. 170
D. 200
Correct Answer: C
Section: Volume C
Explanation
QUESTION 156
Which two statements are correct regarding default protocol preference values? (Choose two.)
A. RIP is preferred over OSPF external routes.

B. Direct, local, and static routes have the same preference value.
C. OSPF's preference value is lower than BGP.
D. OSPF has a single preference value for both internal and external routes.
Correct Answer: AC
Section: Volume C
Explanation
QUESTION 157
What is the default protocol preference for OSPF internal routes?
A. 10
B. 15
C. 150
D. 160
Correct Answer: A
Section: Volume C
Explanation
QUESTION 158
You are modifying the default route preference under the [edit protocols] hierarchy.
In which two routing information sources can you change the default preference value? (Choose two.)
A. local
B. OSPF
C. direct
D. BGP
Correct Answer: BD
Section: Volume C
Explanation
QUESTION 159
By default, if equal-cost paths exist for the same destination, which action will the router take?
A. Drop half the traffic.

B. Make a copy of the traffic and send it to both destinations.
C. Load-balance traffic between the available paths.
D. Randomly select one of the available paths to send traffic.
Correct Answer: D
Section: Volume C
Explanation
QUESTION 160
Which command will display only direct routes?
A. show route
B. show route inet.0 direct
C. show ip route direct
D. show route protocol direct
Correct Answer: D
Section: Volume C
Explanation
QUESTION 161
What are two reasons why a route might be hidden? (Choose two.)
A. route preference
B. routing loop
C. invalid next hop
D. routing policy
Correct Answer: CD
Section: Volume C
Explanation
QUESTION 162
When attempting to view the OSPF routes in the routing table, you issue the command show route table inet.3 but no OSPF routes are displayed.
What is the problem?
A. The OSPF routes are located in the inet4.0 routing table.

B. The OSPF routes are located in the inet.0 routing table.
C. The OSPF routes are located in the inet.2 routing table.
D. The OSPF routes are located in the inet4.3 routing table.
Correct Answer: B
Section: Volume C
Explanation
QUESTION 163
By default, what are three valid routing tables? (Choose three.)
A. inet.0
B. inet4.0
C. inet.6
D. inet6.0
E. inet.3
Correct Answer: ADE

Section: Volume C
Explanation
QUESTION 164
Which two commands would you use to view OSPF routes? (Choose two.)
A. show ip route ospf

B. show ospf routes
C. show route protocol ospf
D. show route
Correct Answer: CD
Section: Volume C
Explanation
QUESTION 165
Which statement is true about routing tables on a Junos device?
A. They purge any routes not selected as active routes.

B. They exist in two places: the Routing Engine and the Packet Forwarding Engine.
C. They are exclusively designed to handle dynamic routing protocols.
D. They populate the forwarding table.
Correct Answer: D
Section: Volume C
Explanation
QUESTION 166
Which two statements are true about the forwarding table? (Choose two.)
A. The forwarding table lists each source protocol and preference for each destination.
B. The forwarding table contains only active routes.
C. The forwarding table is used to process transit packets.
D. The forwarding table is stored in compact flash.
Correct Answer: BC
Section: Volume C
Explanation
QUESTION 167
Which statement is true about the forwarding table?
A. The forwarding table is stored in the control plane only.

B. The forwarding table is stored in the control plane and in the forwarding plane.
C. The forwarding table contains both active and inactive routes.
D. The forwarding table can contain only a single next hop per destination.
Correct Answer: B
Section: Volume C
Explanation
QUESTION 168
Which statement is true about a routing table?
A. It contains routes learned dynamically only.

B. It finds the best path to each destination by using a modified shortest-path-first calculation.
C. It contains only active BGP routes.
D. It contains all accepted routes to all destinations.
Correct Answer: D
Section: Volume C
Explanation
QUESTION 169
Which statement is true about the routing table?
A. The routing table exists in the control plane only.

B. The routing table exists in the control plane and in the forwarding plane.
C. The routing table contains both active and inactive routes.
D. The routing table is stored on compact flash.
Correct Answer: A
Section: Volume C
Explanation
QUESTION 170
You have been asked to create a static route with a next hop that is not directly connected to the router.
Which configuration parameter enables the static route to accomplish this scenario?
A. resolve
B. indirect
C. next-hop
D. recursive
Correct Answer: A
Section: Volume C
Explanation
QUESTION 171
You have been asked to configure your MX240 with a default route toward your upstream ISP at IP address 192.168.100.1.
Which command successfully completes this task?
A. user@router# set routing-options static route 0.0.0.0/0 next-hop 192.168.100.1

B. user@router# set routing-options default route 0.0.0.0/0 next-hop 192.168.100.1
C. user@router# set forwarding-options static route 0.0.0.0/0 next-hop 192.168.100.1
D. user@router# set protocols default route 0.0.0.0/0 next-hop 192.168.100.1
Correct Answer: A
Section: Volume C
Explanation
QUESTION 172
Which protocol creates a complete database of the network topology prior to calculating the optimal route?
A. BGP
B. PIM
C. OSPF
D. RIP
Correct Answer: C
Section: Volume C
Explanation
QUESTION 173
Which statement describes an advantage of dynamic routing?
A. Dynamic routing is typically more scalable when compared to static routing.

B. Unlike static routing, dynamic routing requires no initial user configuration.
C. Unlike static routing, dynamic routing provides redundant IP addresses for end-user devices.
D. Dynamic routing provides DNS services along with IP connectivity, whereas static routing does not.
Correct Answer: A
Section: Volume C
Explanation
QUESTION 174
What is an advantage of dynamic routing?
A. Unlike static routing, dynamic routing provides redundant IP addresses for end-user devices.
B. Unlike static routing, dynamic routing requires no initial user configuration.
C. Dynamic routing can provide increased network availability when compared to static routing.
D. Dynamic routing provides DNS services along with IP connectivity; static routing does not.
Correct Answer: C
Section: Volume C
Explanation
QUESTION 175
Which statement describes an advantage of dynamic routing?
A. Dynamic routing provides redundant IP addresses for end-user devices, unlike static routing.
B. Dynamic routing requires no initial user configuration, unlike static routing.
C. Dynamic routing provides DNS services along with IP connectivity; static routing does not.
D. Dynamic routing typically requires less time to implement than static routing in a large network.
Correct Answer: D
Section: Volume C
Explanation
QUESTION 176
You have a network containing 120 routers. You must establish and maintain connectivity between the loopback interfaces of all routers. Because of the
critical services using the network, you need redundancy and fast failover.
Which routing protocol should you use in this scenario?
A. OSPF
B. RIP
C. BGP
D. static
Correct Answer: A
QUESTION 177
Section: Volume C
Explanation
What are three examples of dynamic IGPs? (Choose three.)
A. OSPF
B. BGP
C. IS-IS
D. PIM
E. RIP
Correct Answer: ACE

Section: Volume C
Explanation
QUESTION 178
Which three statements are true about terms in a policy? (Choose three.)
A. The order of the terms in a policy is irrelevant.

B. The action is specified in a then statement.
C. Terms are optional in a policy.
D. The match condition can be identified with a from statement.
E. A from statement is mandatory in a term.
Correct Answer: BCD

Section: Volume C
Explanation
QUESTION 179
Which two statements are true about terms in a routing policy? (Choose two.)
A. A routing policy cannot have more than one term.

B. If a term does not contain a from statement, all routes match.
C. If a term does not contain a from statement, the Junos OS will not commit.
D. A then statement is not mandatory in a term.
Correct Answer: BD
Section: Volume C
Explanation
QUESTION 180
Which statement is true about terms in a policy?
A. A single term can be applied to a protocol or interface, independent of the policy.

B. Once configured, terms within a policy cannot be reordered.
C. The name of a term is limited to five characters.
D. A from statement is optional in a term.
Correct Answer: D
Section: Volume C
Explanation
QUESTION 181
What is the default import routing policy for OSPF?
A. Accept all OSPF routes and install them into the inet.3 routing table.
B. Accept all OSPF routes and install them into the inet7.0 routing table.
C. Accept all OSPF routes and install them into the inet4.0 routing table.
D. Accept all OSPF routes and install them into the inet.0 routing table.
Correct Answer: D
QUESTION 182
By default, which two statements are true about export routing policies? (Choose two.)
A. Export policies can evaluate only active routes.
Section: Volume C
Explanation
B. Export policies can evaluate all routes.
C. Export policies can be applied to the forwarding table.
D. Export policies can be applied directly to interfaces
Correct Answer: AC
Section: Volume C
Explanation
QUESTION 183
What is the default export routing policy for EBGP?
A. Accept all active BGP routes.

B. Accept all BGP routes.
C. Accept no routes.
D. Accept all active IGP routes.
Correct Answer: A
Section: Volume C
Explanation
QUESTION 184
You have received a default route through BGP from your ISP and you want to redistribute it into OSPF.
Which method will accomplish this?
A. Apply an export policy to OSPF that exports the default route.
B. Apply an import policy to OSPF that imports the default route.
C. Apply the default-network command to OSPF.
D. Apply the redistribute-igp command to BGP.
Correct Answer: A
Section: Volume C
Explanation
QUESTION 185
There are three static routes in the routing table that need to be announced to your OSPF peers.
Which method is used to accomplish this?
A. Apply an import policy to OSPF that injects the static routes into OSPF.
B. Apply an import policy to the static routes that injects the static routes into OSPF. C. Apply an export policy to the
static routes that injects the static routes into OSPF.
D. Apply an export policy to OSPF that injects the static routes into OSPF.
Correct Answer: D
Section: Volume C
Explanation
QUESTION 186
What is the default export routing policy for RIP?
A. Accept all local routes.
B. Accept all RIP routes.
C. Accept no routes.
D. Accept all direct routes.
Correct Answer: C
Section: Volume C
Explanation
QUESTION 187
What is a route filter?
A. a list of prefixes that can be configured in a policy

B. a single prefix that is configured separately, and can be referenced in a policy
C. a list of prefixes that is configured separately and can be referenced in a policy
D. a single prefix that can be configured within a policy
Correct Answer: C
Section: Volume C
Explanation
QUESTION 188
What are two valid actions for a routing policy? (Choose two.)
A. discard
B. next policy
C. accept
D. ignore
Correct Answer: BC
Section: Volume C
Explanation
QUESTION 189
What are two valid match criteria for a routing policy? (Choose two.)
A. OSPF area ID
B. prefix list
C. port
D. time-to-live (TTL)
Correct Answer: AB
Section: Volume C
Explanation
QUESTION 190
What are three valid match criteria in a firewall filter applied to a Layer 3 interface? (Choose three.)
A. IP address
B. MAC address
C. protocol
D. port
E. session ID
Correct Answer: ACD

Section: Volume C
Explanation
QUESTION 191
A packet is evaluated against three user-defined terms within a firewall filter and no match is found.
What correctly describes the action the firewall filter will take for this packet?
A. The filter will permit the packet and take no additional action.
B. The filter will reject the packet and send an ICMP message back to the sender.
C. The filter will discard the packet and take no additional action.
D. The filter will permit the packet and write a log entry to the firewall log.
Correct Answer: C
Section: Volume C
Explanation
QUESTION 192
What are three terminating actions for firewall filters? (Choose three.)
A. reject
B. drop
C. permit
D. accept
E. discard
Correct Answer: ADE

Section: Volume C
Explanation
QUESTION 193
Which two can be used to create and apply an export policy that advertises static routes to RIP neighbors? (Choose two.)
A. set protocols rip export demo

B. edit policy-options policy-statement demoset term 1 from protocol static set term 1 then accept
C. edit policy-options policy-statement demoset term 1 from protocol static accept
D. set protocols rip group internal export demo
Correct Answer: BD
Section: Volume C
Explanation
QUESTION 194
Which configuration causes RIP-learned routes to be advertised to other RIP neighbors?
A. set protocol rip no-passive

B. top edit policy-options policy-statement demoset term 1 from protocol rip set term 1 then accept
top set protocols rip group internal export demo

C. set protocols rip advertise in-out
D. top edit policy-options policy-statement demoset term 1 from active routes set term 1 then accept top
set protocols rip group internal export demo
Correct Answer: B
Section: Volume C
Explanation
QUESTION 195
You need to control SSH, HTTP, and Telnet access to an MX240 router through any interface. You have decided to use a firewall filter.
How should you apply the firewall filter?
A. as an outbound filter on interface fxp0

B. as an outbound filter on interface lo0
C. as an inbound filter on interface fxp0
D. as an inbound filter on interface lo0
Correct Answer: D
Section: Volume C
Explanation
QUESTION 196
What are three benefits of class of service? (Choose three.)
A. It can make a slow network faster.

B. It can prioritize latency-sensitive traffic.
C. It can eliminate congestion.
D. It can control congestion.
E. It can allocate bandwidth for different classes of traffic.
Correct Answer: BDE

Section: Volume C
Explanation
QUESTION 197
Random early detection (RED) is associated with which class of service component?
A. classification
B. policing
C. queuing
D. scheduling
Correct Answer: D
Section: Volume C
Explanation
QUESTION 198
Which class-of-service component allows you to define the bandwidth allocated to different traffic types?
A. classification
B. rewrite marking
C. scheduling
D. queuing
Correct Answer: C
Section: Volume C
Explanation
QUESTION 199
What are two purposes of a forwarding class? (Choose two.)
A. to identify traffic that should be dropped

B. to classify traffic
C. to identify traffic that should receive common treatment
D. to assign traffic to output queues
Correct Answer: CD
Section: Volume C
Explanation
QUESTION 200
What represents the binary equivalence of 207?
A. 11001111
B. 11101011
C. 11010111
D. 11010101
Correct Answer: A
Section: Volume C
Explanation
QUESTION 201
A. 11010100
B. 01100000
C. 11010000
D. 11101010
Correct Answer: B
Section: Volume C
Explanation
QUESTION 202
What represents the decimal equivalence of 01101110?
A. 90
B. 96
C. 110
D. 118
Correct Answer: C
Section: Volume C
Explanation
QUESTION 203
A. 5
B. 93
C. 177
D. 229
Correct Answer: D
Section: Volume C
Explanation
QUESTION 204
A. 195
B. 223
C. 230
D. 231
Correct Answer: D
Section: Volume C
Explanation
QUESTION 205
A. 10010110
B. 11010010
C. 10011100
D. 10010100
Correct Answer: D
Section: Volume C
Explanation
QUESTION 206
What is the decimal equivalent of 10101010?
A. 182
B. 180
C. 172
D. 170
Correct Answer: D
Section: Volume C
Explanation
QUESTION 207
What information is used by a switch to forward an Ethernet frame to its destination?
A. IP address
B. destination MAC address
C. ARP table entry
D. FCS checksum
Correct Answer: B
Section: Volume C
Explanation
QUESTION 208
Which two statements accurately describe a broadcast domain? (Choose two.)
A. Broadcast domains require that the participating devices connect to common switches or hubs.
B. Broadcast domains consist of devices reachable by frames addressed to the Layer 2 broadcast address.
C. Broadcast domains require a gateway device such as a router.
D. Broadcast domains consist of devices that reside on the same VLAN.
Correct Answer: BD
Section: Volume C
Explanation
QUESTION 209
Which two statements are correct about Layer 2 broadcast frames? (Choose two.)
A. Layer 2 broadcast frames are processed by all devices on the same VLAN.
B. Layer 2 broadcast frames are discarded by routers that connect to multiple VLANs.
C. Layer 2 broadcast frames are relayed by routers to all connected VLANs.
D. Layer 2 broadcast frames are relayed by switches to devices on the same VLAN.
Correct Answer: AD
Section: Volume C
Explanation
QUESTION 210
Which two fields are found in an Ethernet frame header? (Choose two.)
A. TTL
B. flags
C. checksum
D. type
Correct Answer: CD
Section: Volume C
Explanation
QUESTION 211
In the MAC address 00: : :9f:eA. , what represents the Organizationally Unique Identifier (OUI)?
A. :9f:eA.
B. 00: : :9f
C. 9f:eA.
D. 00: :
Correct Answer: D
Section: Volume C
Explanation
QUESTION 212
What is a valid multicast MAC address?
A. 00:90:69:9f:ea:46
B. ff:ff:ff:ff:ff:ff
C. 01:00:5e:28:12:95
D. 99:99:99:99:99:99
Correct Answer: C
Section: Volume C
Explanation
QUESTION 213
Which two statements are true regarding an Ethernet collision domain? (Choose two.)
A. If a switch is used, the collision domain is limited to each device and the switch.
B. If a hub is used, the collision domain is limited to each device and the hub.
C. If a hub is used, the collision domain includes all devices connected to the hub.
D. If a switch is used, the collision domain includes all devices connected to the switch.
Correct Answer: AC
Section: Volume C
Explanation
QUESTION 214
Two devices on an Ethernet segment sent frames at the same time causing a collision.
Which two statements are true? (Choose two.)
A. Both devices stop transmitting, wait a random period of time, verify the wire is idle, and re-transmit.
B. The device with the lowest MAC address is permitted to retransmit first.
C. The device with the lowest MAC address sends a jam signal to notify all other devices of the collision.
D. Both devices send a jam signal to notify all other devices of the collision.
Correct Answer: AD
Section: Volume C
Explanation
QUESTION 215
Which statement is true regarding an Ethernet collision domain?
A. If a router is used, the collision domain includes all devices connected to the router.
B. If a hub is used, the collision domain is limited to each device and the hub.
C. If a switch is used, the collision domain is limited to each device and the switch.
D. If a bridge is used, the collision domain includes all devices connected to the bridge.
Correct Answer: C
Section: Volume C
Explanation
QUESTION 216
What is the purpose of a network mask?
A. It is used to identify the maximum hop count of a subnetwork.

B. It is used to identify an IP address as either private or public.
C. It is used to identify the network to which an IP address belongs.
D. It is used to identify the total number of bits present in an IP address.
Correct Answer: C
Section: Volume C
Explanation
QUESTION 217
What is the purpose of a network mask?
A. It is used in conjunction with the wildcard mask to determine the number of hosts on a network.
B. It is used to define which parts of the IP address are allocated to host addresses and network prefixes.
C. It is used to hide subnets from external networks by masking the subnets with NAT.
D. It is used to differentiate a network as a classful network or a classless network.
Correct Answer: B
Section: Volume C
Explanation
QUESTION 218
Which two statements are true of a network mask? (Choose two.)
A. A subnet mask specifies the portion of an IP address that is in a binary format.
B. A subnet mask specifies the portion of an IP address that is in a decimal format.
C. A subnet mask specifies the portion of an IP address that represents a network prefix.
D. A subnet mask specifies the portion of an IP address that represents network hosts.
Correct Answer: CD
Section: Volume C
Explanation
QUESTION 219
Which two characteristics describe the UDP protocol? (Choose two.)
\
A. limited error checking

B. defined timers
C. no recovery mechanisms
D. three-way handshake
Correct Answer: AC
Section: Volume C
Explanation
QUESTION 220
You have been asked to develop an application that uses only connection-oriented protocols.
Which two protocols can you use? (Choose two.)
A. PPP
B. UDP
C. TCP
D. ICMP
Correct Answer: AC
Section: Volume C
Explanation
QUESTION 221
Which three protocols use UDP as a transport protocol by default? (Choose three.)
A. HTTP
B. TFTP
C. DNS
D. SNMP
E. SMTP
Correct Answer: BCD

Section: Volume C
Explanation
QUESTION 222
Which two protocols use UDP as a transport protocol by default? (Choose two.)
A. Telnet
B. ICMP
C. DHCP
D. RIP
Correct Answer: CD
Section: Volume C
Explanation
QUESTION 223
Which network mask is the equivalent of 255.255.248.0?
A. /20
B. /21
C. /22
D. /23
Correct Answer: B
Section: Volume C
Explanation
QUESTION 224
You have been assigned the /24 network and need to segment it into at least 60 subnets.
Which network mask meets this requirement?
A. /27
B. /28
C. /29
D. /30
Correct Answer: D
Section: Volume C
Explanation
QUESTION 225
You must segment your internal /24 network into a minimum of 12 subnets, each containing a minimum of 12 hosts.
Which network mask do you use?

A. /26
B. /27
C. /28
D. /29
Correct Answer: C
Section: Volume C
Explanation
QUESTION 226
What are the usable hosts on the .128.0/19 network?
A. .128.1 through .143.254

B. .128.128 through .134.254
C. .128.0 through .134.254
D. .128.1 through .159.254
Correct Answer: D
Section: Volume C
Explanation
QUESTION 227
You have been allocated a /22 network.
How many usable hosts are available?
A. 510
B. 512
C. 1022
D. 1024
Correct Answer: C
Section: Volume C
Explanation
QUESTION 228
You have been asked to use a 23-bit network mask to segment the network block 209.18.12.0.
How many usable host addresses will there be per subnet?
A. 510
B. 1022C. 2046
D. 8190
Correct Answer: A
Section: Volume C
Explanation
QUESTION 229
-- Exhibit --
user@router# run show interfaces terse

Interface Admin Link Proto Local
fe-0/0/0 up up
fe-0/0/0.0 up upinet 10.0.39.2/24
iso
mpls
fe-0/0/1 up up fe-0/0/1.0
up upinet 10.0.18.2/24 fe-0/0/1.5
down up inet 10.0.19.2/24
-- Exhibit --
An administrator is unable to ping any address on the 10.0.19.0/24 subnet. To identify the problem, the administrator uses the command shown in the exhibit.
Which step should be taken to solve the problem?

A. Check the physical cable.
B. Issue the command activate interfaces fe-0/0/1.5 .
C. Issue the command delete interfaces fe-0/0/1.5 disable.
D. Reconfigure the IP address.
Correct Answer: C
Section: Volume C
Explanation
QUESTION 230
-- Exhibit --
interfaces
{ ge-0/0/8
{ unit 0 {
family inet {
address 192.168.1.1/24;
}
}
}
ge-0/0/9
{ unit 0 {
family inet {
address 192.168.10.1/24;
}
}
}
}
-- Exhibit --
Referring to the exhibit, which command would you use to add an additional address to the ge-0/0/9.0 interface?
A. [edit interfaces ge-0/0/9 unit 0] user@router# set

family inet address /24 B. [edit interfaces ge-0/0/9 unit
0] user@router# set family inet secondary-address /24
C. [edit interfaces ge-0/0/9 unit 0]
user@router# set family inet address /24 secondary
D. [edit interfaces ge-0/0/9 unit 0] user@router# set
family inet address-secondary /24
Correct Answer: A
Section: Volume C
Explanation
QUESTION 231
-- Exhibit -[editsnmp]
user@router# show
communityCommunityA
{ authorization read-only;
clients
{ 192.168.1.0/28;
}
}
trap-groupgroupA {
categories
{ link;
}
targets
{ 192.168.100.1;
192.168.200.1;
}
}
-- Exhibit --
Referring to the exhibit, what is the purpose of the targets section of the configuration?
A. It defines which devices will be sending traps.

B. It specifies where to send traps.
C. It defines the IP addresses of management systems that can access the device.
D. It specifies which devices can be polled for SNMP data.
Correct Answer: B
Section: Volume C
Explanation
QUESTION 232
-- Exhibit --
traceroute to 10.1.15.2 (10.1.15.2), 30 hops max, 40 byte packets

1 10.1.36.1 (10.1.36.1) 0.651 ms 7.834 ms 0.506 ms
2 10.1.23.1 (10.1.23.1) 0.5 ms 0.5 ms 0.5 ms
3***
4***
-- Exhibit --
Referring to the exhibit, which statement is correct?
A. The packets have exceeded the time-to-live value.

B. There is a loop.
C. The asterisks indicate a response time out.
D. The asterisks indicate that the traceroute is completed.
Correct Answer: C
Section: Volume C
Explanation
QUESTION 233
-- Exhibit -user@router# run
show route /24

/24 *[OSPF/10] 04:10:20 >to

172.25.213.11 via ge-1/0/1.0 to
172.25.213.23 via ge-1/0/2.0 --
Exhibit --
In the exhibit, what does the (>) symbol indicate?
A. There is a software issue with ge-1/0/1.0 interface.

B. There is a hardware issue with ge-1/0/1.0 interface.
C. The next hop of 172.25.213.11 is selected.
D. The next hop of 172.25.213.11 is not resolvable.
Correct Answer: C
Section: Volume C
Explanation
QUESTION 234
-- Exhibit –
-- Exhibit --
You have been asked to establish reachability between Router 1's and Router 2's loopback addresses as shown in the exhibit.
Which two steps will accomplish this task? (Choose two.)
A. Create a static route on Router 1 to 172.17.28.1 with a next hop of 10.10.10.2.

B. Create a static route on Router 1 to 172.17.28.1 with a next hop of 10.10.10.1.
C. Create a static route on Router 2 to 172.17.25.1 with a next hop of 10.10.10.1.
D. Create a static route on Router 1 to 172.17.25.1 with a next hop of 10.10.10.2.
Correct Answer: AC
Section: Volume C
Explanation
QUESTION 235
-- Exhibit --
[edit routing-options]
user@router# show
static
{ defaults
{ metric 10;
preference 10;
}
route 10.10.10.0/24 { next-hop
192.168.100.1; qualified-next-
hop 192.168.200.1; preference 6;
}
metric 8;
}
}
-- Exhibit --
Given the configuration shown in the exhibit, which statement is correct about traffic matching the route 10.10.10.0/24?
A. It will be forwarded to 192.168.100.1 using a metric of 10.

B. It will be forwarded to 192.168.100.1 using a metric of 8.
C. It will be forwarded to 192.168.200.1 using a metric of 8.
D. It will be forwarded to 192.168.200.1 using a metric of 10.
Correct Answer: C
Section: Volume C
Explanation
QUESTION 236
-- Exhibit --
user@router> show route

10.10.10.91/32 *[Direct/0] 00:09:40
>via lo0.0
10.10.10.92/32 *[OSPF/10] 00:01:50, metric 1
>to 172.16.1.2 via ge-0/0/2.0
100.100.1.0/24 *[Static/5] 00:01:50
Reject
172.16.1.0/24 *[Direct/0] 00:06:09
>via ge-0/0/2.0
172.16.1.1/32 *[Local/0] 00:06:09
192.168.0.0/16 *[Aggregate/130] 00:00:06
Reject
192.168.0.0/17 *[Aggregate/130] 00:00:06
>to 172.16.1.2 via ge-0/0/2.0
192.168.50.0/24 *[Static/5] 00:00:06
>to 172.16.1.2 via ge-0/0/2.0
192.168.51.0/24 *[Static/5] 00:00:06
>to 172.16.1.2 via ge-0/0/2.0
user@router> show configuration policy-options

policy-statement demo { term 1 { from {
route-filter 192.168.0.0/16 longer accept;
}
then reject;
}
}
user@router> show configuration protocols

ospf export demo; area 0.0.0.0 {
interface ge-0/0/2.0;
}
-- Exhibit --
Given the configuration and routing table shown in the exhibit, which routes will be advertised to OSPF neighbors because of the demo policy?
A. 192.168.0.0/16 only
B. 192.168.0.0/17 only
C. 192.168.50.0/24 and 192.168.51.0/24
D. 192.168.0.0/17, 192.168.50.0/24, and 192.168.51.0/24
Correct Answer: D
Section: Volume C
Explanation
QUESTION 237
-- Exhibit --

10.10.10.91/32 *[Direct/0] 00:09:40

>via lo0.0
10.10.10.92/32 *[OSPF/10] 00:01:50, metric 1
>to 172.16.1.2 via ge-0/0/2.0
100.100.1.0/24 *[Static/5] 00:01:50
Reject
172.16.1.0/24 *[Direct/0] 00:06:09
>via ge-0/0/2.0
172.16.1.1/32 *[Local/0] 00:06:09
192.168.0.0/16 *[Aggregate/130] 00:00:06
Reject
192.168.0.0/17 *[Aggregate/130] 00:00:06
>to 172.16.1.2 via ge-0/0/2.0
192.168.50.0/24 *[Static/5] 00:00:06
>to 172.16.1.2 via ge-0/0/2.0
192.168.51.0/24 *[Static/5] 00:00:06
>to 172.16.1.2 via ge-0/0/2.0
user@router> show configuration policy-options policy-

statement demo {
term 1 { from
{ protocol
static;
route-filter 192.168.0.0/16 orlonger accept;
}
then accept;
}
}

}
-- Exhibit --
A. 192.168.0.0/16 only
B. 192.168.50.0/24 only
C. 192.168.50.0/24 and 192.168.51.0/24
D. 192.168.0.0/17, 192.168.50.0/24, and 192.168.51.0/24
Correct Answer: C
Section: Volume C
Explanation
QUESTION 238
-- Exhibit --
user@router> show configuration firewall

familyinet {
filter demo
{ term example
{ from {
source-address {
100.100.100.0/24;
}
destination-address {
200.200.200.0/24;
}
}
then {
reject;
}
}
term testing
{ from { source-
address {
10.10.10.0/28;
}
200.200.200.0/24;
}
}
then sample;
}
term results
{ from {
address {
200.200.200.0/24;
}
}
then accept;
}
term final
{ thenpolicer
LAPD; }
}
}
-- Exhibit --
Given the configuration shown in the exhibit, what will happen to traffic from source 10.10.10.25 destined to 200.200.200.1?
A. The traffic will be rejected.

B. The traffic will be dropped.
C. The traffic will be forwarded.
D. The traffic will be policed.
Correct Answer: C
Section: Volume C
Explanation
QUESTION 239
-- Exhibit --

10.10.10.91/32 *[Direct/0] 00:09:40

>via lo0.0
10.10.10.92/32 *[OSPF/10] 00:01:50, metric 1
>to 172.16.1.2 via ge-0/0/2.0
100.100.1.0/24 *[Static/5] 00:01:50
Reject
172.16.1.0/24 *[Direct/0] 00:06:09
>via ge-0/0/2.0
172.16.1.1/32 *[Local/0] 00:06:09
192.168.0.0/16 *[Aggregate/130] 00:00:06
Reject
192.168.0.0/17 *[Aggregate/130] 00:00:06
>to 172.16.1.2 via ge-0/0/2.0
192.168.50.0/24 *[Static/5] 00:00:06
>to 172.16.1.2 via ge-0/0/2.0
192.168.51.0/24 *[Static/5] 00:00:06
>to 172.16.1.2 via ge-0/0/2.0
user@router> show configuration policy-options policy-
statement demo {
term 1 { from { protocol
aggregate; route-filter
192.168.0.0/16 longer;
}
then accept;
}
}

}
-- Exhibit --
A. 192.168.0.0/16 only
B. 192.168.0.0/17 only
C. 192.168.0.0/16 and 192.168.0.0/17
D. 192.168.0.0/17, 192.168.50.0/24, and 192.168.51.0/24
Correct Answer: B
Section: Volume C
Explanation
QUESTION 240
-- Exhibit --
statementpolicyABC { term
A { from { protocol rip;
}
then accept;
}
}
[edit protocols ospf]

user@router# show
exportpolicyABC;
area 0.0.0.0
{ interface ge-0/0/0.0;
interface lo0.0;
}
-- Exhibit --
Referring to the exhibit, which two statements are true? (Choose two.)
A. The route 192.168.1.0/25 is accepted.

B. The route 192.168.2.0/24 is accepted.
C. OSPF routes will be exported into RIP.
D. RIP routes will be exported into OSPF.
Correct Answer: AD
Section: Volume C
Explanation
QUESTION 241
-- Exhibit --
[edit interfaces]
user@router# show
...
lo0 { unit 0
{ familyine
t{
filter {
input protect-loopback;
}
address 192.168.100.1/32;
}
}
}
-- Exhibit --
Given the configuration shown in the exhibit, what is the function of the protect-loopback filter?
A. to protect the Routing Engine

B. to protect all interfaces on the device
C. to protect the Packet Forwarding Engine
D. to protect the management interface
Correct Answer: A
Section: Volume C
Explanation
QUESTION 242
-- Exhibit –
-- Exhibit --
Referring to the exhibit, you want to block HTTP access to Web-Server from the subnet where Mal-User is located. All other traffic should be permitted.
Which firewall filter configuration do you use?
A. [edit firewall family inet filter STOP-MAL-USER]

user@router# show term one { from {
source-address {
200.200.200.0/24;
}
100.100.100.10/32;
}
protocoltcp; destination-
port http;
}
then accept;
}
term two
{ then
{ reject;
}
}
B. [edit firewall family inet filter STOP-MAL-USER]
user@router# show term one { from { source-
address {
100.100.100.0/24;
}
200.200.200.1/32;
}
protocoltcp;
destination-port http;
}
then accept;
}
term two
{ then {
reject;
}
}
C. [edit firewall family inet filter STOP-MAL-USER]
user@router# show term one { from {
source-address {
100.100.100.0/24;
}
200.200.200.1/32;
}
protocoltcp;
}
then reject;
}
term two
{ then {
accept;
}
}
D. [edit firewall family inet filter STOP-MAL-USER]
user@router# show
term one { from { source-
address
{ 200.200.200.0/2
4;
}
100.100.100.10/32;
}
protocoltcp;
}
then reject;
}
term two
{ then {
accept;
}
}
Correct Answer: D
Section: Volume C
Explanation
QUESTION 243
-- Exhibit –
-- Exhibit --
Referring to the exhibit, you are asked to rate-limit traffic from Web-Server to the subnet where Mal-User is located. All other traffic should be permitted.
Which firewall filter configuration do you use?
A. [edit firewall] user@router#

show policer LIMIT-MAL-
USER {
if-exceeding { bandwidth-
limit 400k;
burst-size-limit 100k;
}
then discard;
} familyinet { filter STOP-
MAL-USER {
term one
{ from {
source-address {
100.100.100.10/32;
}
200.200.200.0/24;
}
}
thenpolicer LIMIT-MAL-USER;
}
term two
{ then accept;
}
}
}
B. [edit firewall] user@router#
show policer LIMIT-BAD-
USER { if-exceeding
{ bandwidth-limit 400k;
}
then discard;
MAL-USER { term one
{ from { source-address
{
100.100.100.10/32;
}
destination-address
{ 200.200.200.0/24;
}
}
}
term two {
then accept;
}
}
}
C. [edit firewall] user@router#
USER { if-exceeding
}
then discard;
}
familyinet { filter STOP-
MAL-USER { term one
{ from { source-address
{
100.100.100.10/32;
}
destination-address
{ 200.200.200.0/24;
}
}
}
term two {
then reject;
}
}
}
D. [edit firewall] user@router#
USER { if-exceeding
}
then discard;
MAL-USER { term one
{ from {
source-address {
200.200.200.0/24;
}
destination-address
{ 100.100.100.10/32;
}
}
}
term two
{ then
accept; }
}
}
Correct Answer: A
Section: Volume C
Explanation
QUESTION 244
-- Exhibit --
...
if-exceeding { bandwidth-
limit 1m;
}
then discard; -
- Exhibit --
The configuration in the exhibit is associated with which class of service component?
A. classification
B. policing
C. queuing
D. scheduling
Correct Answer: B
Section: Volume C
Explanation
QUESTION 245
-- Exhibit --
[edit firewall family inet filter COS-CLASSIFIER]

user@router# show
term MANAGER { from {
source-address {
192.168.200.0/25;
}
100.100.100.1/32;
}
}
then {
forwarding-class expedited-forwarding;
accept;
}
}
term ALL-OTHER-TRAFFIC
{ then accept;
}

user@router# show
unit 0 {
familyinet {
filter {
input COS-CLASSIFIER;
}
address 192.168.200.1/24;
}
}
-- Exhibit --
Referring to the exhibit, which type of classifier is being used in this CoS configuration?
A. behavior aggregate
B. policer
C. multifield
D. forwarding policy
Correct Answer: C
Section: Volume C
Explanation
QUESTION 246
-- Exhibit --
[edit class-of-service]
user@router# show
interfaces { ge-0/0/2
{ unit 0 { classifiers {
inet-precedence default;
}
}
}
}
-- Exhibit --
Referring to the exhibit, which type of classifier is being used in this CoS configuration?
A. behavior aggregate
B. policer
C. multifield
D. forwarding policy
Correct Answer: A
Section: Volume C
Explanation
QUESTION 247
-- Exhibit --
user@router> show route protocol static inet.0: 12 destinations,

12 routes (12 active, 0 holddown, 0 hidden) + = Active Route, - =
Last Active, * = Both
192.168.1.128/27 *[Static/5] 00:03:13

>to 10.20.106.10 via fe-0/0/5.1
192.168.1.144/29 *[Static/5] 00:03:13
>to 10.20.14.131 via ge-0/0/0.0
192.168.1.192/27 *[Static/5] 00:03:13
>to 10.18.1.1 via ge-0/0/1.0
192.168.1.128/28 *[Static/5] 00:01:06
>to 10.20.14.130 via ge-0/0/0.0
-- Exhibit --
Given the routing entries shown in the exhibit, which next-hop IP address will be used for the destination IP address 192.168.1.142? (Assume that only static
routes are available for the destination.)
A. 10.20.106.10
B. 10.20.14.131C. 10.18.1.1
D. 10.20.14.130
Correct Answer: D
Section: Volume C
Explanation
QUESTION 248
-- Exhibit --

192.168.1.128/27 *[Static/5] 00:03:13
>to 10.20.106.10 via fe-0/0/5.1
192.168.1.144/29 *[Static/5] 00:03:13
>to 10.20.14.131 via ge-0/0/0.0
192.168.1.192/27 *[Static/5] 00:03:13
>to 10.18.1.1 via ge-0/0/1.0
192.168.1.128/28 *[Static/5] 00:01:06
>to 10.20.14.130 via ge-0/0/0.0
-- Exhibit --
Given the routing entries shown in the exhibit, which next-hop IP address will be used for the destination IP address 192.168.1.159? (Assume that only static
routes are available for the destination.)
A. 10.20.14.130 B.
10.18.1.1
C. 10.20.14.131
D. 10.20.106.10
Correct Answer: D
Section: Volume C
Explanation
QUESTION 249
-- Exhibit --

192.168.1.0/24 *[Static/5] 00:03:13

>to 10.20.106.10 via fe-0/0/5.1
192.168.1.192/26 *[Static/5] 00:03:13
>to 10.20.14.131 via ge-0/0/0.0
192.168.1.192/27 *[Static/5] 00:03:13
>to 10.18.1.1 via ge-0/0/1.0
192.168.1.4/30 *[Static/5] 00:01:06
>to 10.20.14.130 via ge-0/0/0.0
-- Exhibit --
Using the routing table shown in the exhibit, what will be the next-hop IP address used for a destination IP address of 192.168.1.1? (Assume that the only routes
to this destination are static routes.)
A. 10.20.14.130 B.
10.18.1.1
C. 10.20.14.131
D. 10.20.106.10
Correct Answer: D
Section: Volume C
Explanation
QUESTION 250
What are the usable hosts on the 192.168.1.24/29 network?
A. .24 through .48

B. .24 through .32
C. .25 through .30
D. .35 through .31
Correct Answer: C
Section: Volume D
Explanation
The minimum host address is 192.168.1.25, and the maximum host address is 192.168.1.30.
References: http://jodies.de/ipcalc?host=192.168.1.24&mask1=29&mask2=
QUESTION 251
Which two are correct when configuring an IP address for a Fast Ethernet interface? (Choose two.)
A. set interfaces fe-0/0/0 address 10.1.1.1/24
B. set interfaces fe-0/0/0.0 family inet address 10.1.1.1/24
C. set interfaces fe-0/0/0.0 address 10.1.1.1/24
D. set interfaces fe-0/0/0 unit 0 family inet address 10.1.1.1/24
Correct Answer: BD
Section: Volume D
Explanation
D: The following configuration is sufficient to get a Fast Ethernet interface up and running. By default, IPv4 Fast Ethernet interfaces use Ethernet version 2
encapsulation.
[edit] user@host# set interfaces fe-5/2/1 unit 0 family inet address local-
address
B: You can alos omit the unit specification, here unit 0, and set the ip address through the command:
set interfaces fe-0/0/0.0 family inet address local-address
References: http://www.juniper.net/documentation/en_US/junos12.3/topics/example/interfaces-configuring-fast-ethernet-interfaces.html
QUESTION 252
After factory-defaults have been loaded, which two syslog files will be present in the configuration?
A. system and chassis

B. syslog-messages and NVRAM
C. messages and interactive-commands
D. authorization and events
Correct Answer: C
Section: Volume D
Explanation
Factory default syslog files include messages and interactive-commands.
Example: The following factory default configuration file is for a Juniper EX3200 switch:
system
{ syslog {
user * {
any emergency;
}
file messages
{ any notice;
authorization info;
}
file interactive-commands { interactive-
commands any;
}
}
etc,
References: http://www.juniper.net/documentation/en_US/junos14.1/topics/reference/general/ex3200-default-configuration.html QUESTION 253

Which of the following commands will configure the maximum transmission unit size of a fast Ethernet interface?
A. set interfaces fe-0/0/0 unit 0 ethernet-options mtu 1200

B. set interfaces fe-0/0/0 mtu 1200
C. set interfaces fe-0/0/0 unit 0 mtu 1200
D. set interfaces fe-0/0/0.0 mtu 1200
Correct Answer: C
Section: Volume D
Explanation
Example 1: Reset the MTU size to 1492 at the fe-0/0/2 interface.
[edit] user@srx# set interfaces fe-0/0/2 unit 0 family inet mtu
1492
Example 2: To change the family ISO MTU to 1492 use the following command:
Juniper# set interfaces ge-1/0/2 unit 0 family iso mtu 1492
References: https://www.juniper.net/techpubs/en_US/release-independent/nce/information-products/topic-collections/nce/nce0097-small-office-for-hd-
video/smalloffice-for-hd-video.pdf
QUESTION 254
What information does the help topic command provide?
A. router's version and serial number to help open a case with JTAC
B. software documentation describing features and configuration tasks within JUNOS
C. a brief description of commands and their default values
D. a verification of the current configuration on the router
Correct Answer: B
Section: Volume D
Explanation
The help topic command displays usage guidelines for the statement based on information that appears in the Junos OS configuration guides.
Incorrect Answers:
C: This is done by the help reference command, which The displays summary information about the statement based on the summary descriptions that appear in
the Junos OS configuration guides.
References: http://www.juniper.net/documentation/en_US/junos16.1/topics/concept/junos-cli-online-help-access-overview.html
QUESTION 255
Which two statements about subnet masks are true? (Choose two.)
A. If a bit is turned on (1), the corresponding bit in the IP address is used for the host portion.
B. If a bit is turned off (0), the corresponding bit in the IP address is used for the host portion.
C. If a bit is turned on (1), the corresponding bit in the IP address is used for the network prefix.
D. If a bit is turned off (0), the corresponding bit in the IP address is used for the network prefix.
Correct Answer: BC
Section: Volume D
Explanation
Example: 255.0.0.0 (Class A network), in binary 11111111.00000000. 00000000. 00000000
The leftmost octet, 11111111, represents the network prefix, while the other three octets, with zeroes, represent the host portion.
References: http://www.akadia.com/services/ip_routing_on_subnets.html
QUESTION 256
Which statement is correct about logical units on Juniper Router interfaces?
A. Logical units are used only when a Layer 2 identifier is present such as a VLAN.
B. A logical unit of 0 is required when using a frame-relay DLCI.
C. A logical unit is always required.
D. Logical units are not required unless ATM or 802.1Q VLAN tagging is configured.
Correct Answer: C
Section: Volume D
Explanation
Many router vendors refer to a logical unit as a subinterface; they do not require a subinterface on every physical interface, whereas a Juniper Networks router
does.
Note: All router interfaces that will send and receive transit traffic require a logical unit to be configured. This logical unit creates a division of the physical interface
into multiple parts.
References: https://www.safaribooksonline.com/library/view/junos-enterprise-routing/9781449309633/ch04s03.html
QUESTION 257
Which two options are reasons for using traffic classification? (Choose two.)
A. to use the classification to route traffic
B. to use the classification to reorder packets from various sources

C. to use the classification to discard malformed packets
D. to use the classification to provide the configured service level
Correct Answer: AD
Section: Volume D
Explanation
Classification entails using a traffic descriptor to categorize a packet within a specific group to define that packet and make it accessible for QoS handling on the
network. Using packet classification, you can partition network traffic into multiple priority levels or classes of service.
References: https://www.cisco.com/c/en/us/td/docs/ios/12_2/qos/configuration/guide/fqos_c/qcfclass.pdf
QUESTION 258
Which three SONET network elements are used for troubleshooting? (Choose three.)
A. line
B. path
C. circuit
D. section
E. segment
Correct Answer: ABD

Section: Volume D
Explanation
Section, line, and path errors occur over different spans of the SONET network and between different pieces of equipment.
References: http://www.juniper.net/documentation/en_US/junos15.1/topics/topic-map/sonet-interfaces-alarms-and-errors.html
QUESTION 259
Which application would be suited for UDP traffic?
A. Web browsing
B. downloading a program
C. streaming television shows
D. on-line shopping
Correct Answer: C
Section: Volume D
Explanation
UDP flows would be appropriate for streaming Video shows.
Incorrect Answers:
A: Web browsing would be using both the UDP and the TCP protocols.
B: Downloading a program would make use of the FTP protocol, which uses both UDP and TCP.
References: https://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers http://signatures.juniper.net/documentation/applications/Multimedia%3AVideo-

Streaming%3APPSTREAM-4-UDP.html
QUESTION 260
Which two loopback types are supported for serial interfaces on Juniper devices? (Choose two.)
A. Local
B. Far End
C. Remote
D. Bidirectional
Correct Answer: AC
Section: Volume D
Explanation
For serial interfaces Juniper devices support the local and the remote loopback types.
References: http://www.juniper.net/documentation/en_US/junos12.3/topics/usage-guidelines/interfaces-interface-diagnostics.html
QUESTION 261
When you display the routing table by entering the show route command, what does the * indicate?
A. The route is a direct route.

B. The route was selected as active.
C. The route is a default route.
D. The route was learned using a dynamic routing protocol.
Correct Answer: B
Section: Volume D
Explanation
An asterisk (*) indicates that the route is both the active and the last active route. An asterisk before a to line indicates the best subpath to the route.
References: https://www.juniper.net/documentation/en_US/junos14.1/topics/reference/command-summary/show-route-detail.html
QUESTION 262
Which command is a valid way to view the status of an interface?
A. > show interfaces fe-0/0/0 extensive

B. > show interfaces fe-0/0/0 status
C. > show interfaces fe-0/0/0 health-info
D. > show interfaces fe-0/0/0 verbose
Correct Answer: A
Section: Volume D
Explanation
You can get the information from "show interface <interface_name> extensive"
References: https://forums.juniper.net/t5/Ethernet-Switching/Any-Command-like-as-cisco-s-quot-show-interface-status-quot/td-p/4596
QUESTION 263
Given the host IP address of 192.168.100.60 and a network mask of 255.255.255.224 (or /27), which address represents the correct network address for the
referenced host?
A. 192.168.100.48
B. 192.168.100.16C. 192.168.100.0
D. 192.168.100.32
Correct Answer: D
Section: Volume D
Explanation
Network is a class C network: 192.168.100.32/27
Binary: 11000000.10101000.01100100.001 00000
QUESTION 264
Which command configures an address of 192.168.1.1 with a mask of 255.255.255.0 on interface ge-0/0/0?
A. set ip interface ge-0/0/0 address 192.168.1.1 255.255.255.0

B. set ip interface ge-0/0/0 address 192.168.1.1/24
C. set interface ge-0/0/0 ip4 address 192.168.1.1 mask 255.255.255.0
D. set interfaces ge-0/0/0 unit 0 family inet address 192.168.1.1/24
Correct Answer: D
Section: Volume D
Explanation
The following configuration is sufficient to get a Fast Ethernet interface up and running. By default, IPv4 Fast Ethernet interfaces use Ethernet version 2
encapsulation.
[edit] user@host# set interfaces fe-5/2/1 unit 0 family inet address local-
address
References: http://www.juniper.net/documentation/en_US/junos12.3/topics/example/interfaces-configuring-fast-ethernet-interfaces.html
QUESTION 265
Which two protocols are connection-oriented? (Choose two.)
A. Ethernet
B. PPP
C. TCP
D. UDP
Correct Answer: BC
Section: Volume D
Explanation
Point-to-Point Protocol (PPP) and Transmission Control Protocol (TCP) are a connection-oriented protocols.
References: http://searchnetworking.techtarget.com/definition/connection-oriented
QUESTION 266
Which statement is correct about the validate option when upgrading JUNOS software?
A. It will check the MD5 checksum of the install package.

B. It will check if the device meets the memory requirements for the install package.
C. It will check the compatibility of the configuration with the install package.
D. It will check if the device meets the storage requirement for the install package.
Correct Answer: C
Section: Volume D
Explanation
When you upgrade or downgrade Junos OS, we recommend that you include the validate option with the request system software add command to check that the
candidate software is compatible with the current configuration. By default, when you add a package with a different release number, the validation check is done
automatically.
References: https://www.juniper.net/techpubs/en_US/junos12.3/topics/task/operational/junos-candidate-software-compatibility-verifying.html
QUESTION 267
What are three advantages which dynamic routing protocols offer over static routing protocols? (Choose three.)
A. lower administrative overhead
B. increased network availability
C. greater network scalability
D. easier to implement qualified next hops
E. easier ECMP route implementation
Correct Answer: ABC
Section: Volume D
Explanation
Dynamic routing protocols help the network administrator manage the time-consuming and exacting process of configuring and maintaining static routes.
Dynamic routing automatically adapts topology to reroute traffic if possible.
Dynamic routing is generally independent of the network size.
References: http://www.ciscopress.com/articles/article.asp?p=2180210&seqNum=5
QUESTION 268
When troubleshooting ATM, which command would allow you to test reachability from one side of an ATM cloud to the other?
A. ping atm vci 0.100 interface at-0/1/0 end-to-end

B. ping atm vci 0.100 interface at-0/1/0 circuit
C. ping atm vci 0.100 interface at-0/1/0 far-end
D. ping atm vci 0.100 interface at-0/1/0 final-hop
Correct Answer: A
Section: Volume D
Explanation
ping atm syntax: Syntax
ping atm interface interface-name vci vci
<brief>
<count count>
<end-to-end | segment>
<interval seconds>
<sequence-number sequence-number>
References: http://www.juniper.net/documentation/en_US/junos13.3/topics/reference/command-summary/ping-atm.html
QUESTION 269
Which command will display the temperature of the Routing Engine's CPU?
A. show chassis environment

B. show chassis routing-engine
C. show chassis temperatures
D. show chassis status
Correct Answer: B
Section: Volume D
Explanation
The output fields for theshow chassis routing-engine command include:
* Temperature: Temperature of the air flowing past the Routing Engine.
References: https://www.juniper.net/documentation/en_US/junos11.4/topics/reference/command-summary/show-chassis-routing-engine.html
QUESTION 270
Which command would correctly define a router's host-name?
A. # set ip host-name <name>

B. > set ip host-name <name>
C. # set system host-name <name>D. > set system host-name <name>
Correct Answer: C
Section: Volume D
Explanation
Configure the hostname, using the set system host-name command.
[edit]
user@host# set system host-name newton-re0
References: http://www.juniper.net/techpubs/en_US/junos15.1/topics/example/router-name-domain-name-ip-address-system-id-configuring.html
QUESTION 271
You have been asked to use a 28 bit subnet mask to segment the following network block:
108.12.5.0. How many usable hosts per sub-net could you create?
A. 10 hosts
B. 14 hosts
C. 12 hosts
D. 16 hosts
Correct Answer: B
Section: Volume D
Explanation
Network: 108.12.5.0/28 (Class A)
Broadcast: 108.12.5.15
HostMin: 108.12.5.1
HostMax: 108.12.5.14
Hosts/Net: 14
QUESTION 272
In Ethernet networks, duplex mismatches will lower performance. Which error statistics can be seen if a duplex mismatch is present?
A. collisions on the full-duplex side; runts on the half-duplex side

B. collisions on the full-duplex side; collisions on the half-duplex side
C. collisions on the half-duplex side; framing errors on the full-duplex side
D. collisions on the half-duplex side; giants on the full-duplex side
Correct Answer: C
Section: Volume D
Explanation
On an Ethernet connection, a duplex mismatch is a condition where two connected devices operate in different duplex modes, that is, one operates in half duplex
while the other one operates in full duplex.
This results in the full-duplex side receiving an incomplete frame with CRC error or a runt frame. It does not detect any collision since CSMA/CD is disabled on the
full-duplex side. As a result, when both devices are attempting to transmit at (nearly) the same time, the packet sent by the full-duplex end will be discarded and
lost due to an assumed collision and the packet sent by the half duplex device will be delayed or lost due to a CRC error in the frame.
References: https://en.wikipedia.org/wiki/Duplex_mismatch
QUESTION 273
What is correct regarding the configuration shown below?
static route 0.0.0.0/0 qualified-next-hop 172.30.25.1 preference 7 next-hop 172.30.25.5
A. The next-hop 172.30.25.1 is selected because the address has the lowest value.
B. The next-hop 172.30.25.1 is selected because it is listed first.
C. The next-hop 172.30.25.1 is selected because it is the lowest protocol preference.
D. The next-hop 172.30.25.5 is selected because it is the lowest protocol preference.
Correct Answer: D
Section: Volume D
Explanation
The routes with a lower route preference are always used to route traffic. Preference 5 is the default preference for static routes.
References: https://www.juniper.net/documentation/en_US/junos15.1/topics/concept/routing-protocol-static-security-route-preference-and-qualified-next-
hopunderstanding.html
QUESTION 274
After issuing the show interfaces terse command, you notice that the status of one interface is "up down". What does this indicate?
A. Layer 1 on the interface is up but Layer 2 is down.

B. Layer 2 on the interface is up but Layer 3 has not been configured.
C. The interface is administratively up but the link status is down.
D. The interface is up but has been administratively turned off.
Correct Answer: C
Section: Volume D
Explanation
The the administratively status is displayed in column 1, and the link status is displayed in column 2.
Example:
user@host> show interfaces terse t1*
Interface Admin Link Proto Local Remote t1-1/0/0
down up --- administratively disabled t1-1/0/0.0 up down
inet 1.1.1.1/30 t1-1/0/1 up down --- physical layer down
References: http://www.juniper.net/documentation/en_US/junos15.1/topics/task/verification/t1-status-displaying.html
QUESTION 275
-- Exhibit --
user@router# show
unit 0 {
family inet {
address 172.16.10.100/24;
address 172.16.10.101/24;
}
}
You have two IP addresses configured on the ge-0/0/6 interface, as shown in the exhibit. You want to select the 172.16.10.101 address as the source address for
packets sent from this interface to hosts on a remote subnet.
Which parameter would you add to the 172.16.10.101 address to complete this task?
A. broadcast
B. arp 172.16.10.101
C. preferred
D. primary
Correct Answer: C
Section: Volume D
Explanation
QUESTION 276
How many host addresses are available in the 172.27.0.0/28 network?
A. 6
B. 30
C. 28
D. 14
Correct Answer: D
Section: Volume D
Explanation
QUESTION 277
-- Exhibit --
user@router# show
unit 100 { vlan-id 100;
family inet {
address 10.1.1.1 /24;
}
}

user@router# commit check [edit
interfaces ge-0/0/1]
'unit 100'
Only unit 0 is valid for this encapsulation
error: configuration check-out failed
-- Exhibit --
Referring to the exhibit, you are unable to commit the configuration for the ge-0/0/1 interface.
What must you do to commit the configuration?
A. You must set the encapsulation vlan-ccc parameter under the [edit interfaces ge-0/0/1 unit 100] hierarchy.
B. You must set the vlan-tagging parameter under the [edit interfaces ge-0/0/1] hierarchy.
C. You must use the rename command to change unit 100 to unit 0.
D. You must set the encapsulation flexible-ethernet-services parameter under the [edit interfaces ge-0/0/1] hierarchy.
Correct Answer: B
Section: Volume D
Explanation
QUESTION 278
The marketing team needs access to a server on a subnet 172.0.46.0/24. The next-hop router is 10.0.4.2/30. A static route on their gateway has been configured
to accomplish the task. You want to keep the static route from being redistributed into dynamic routing protocols.
Which command will satisfy this requirement?
A. Set routing-options static route 172.0.46.0/24 next-hop 10.0.4.2/30 no-resolve

B. Set routing-options static route 172.0.46.0/24 next-hop 10.0.4.2/30
C. Set routing-options static route 172.0.46.0/24 next-hop 10.0.4.2/30 no-readvertise
D. Set routing-options static route 172.0.46.0/24 next-hop 10.0.4.2/30 no-redistribute
Correct Answer: C
Section: Volume D
Explanation
QUESTION 279
Which Junos release would address only bug fixes that were not contained in the 15.1R1 version of code?
A. 15.1R2
B. 15.1X2
C. 15.1S2
D. 15.1F2
Correct Answer: A
Section: Volume D
Explanation
QUESTION 280
Which command causes the Junos OS temporarily activate a configuration?
A. commit check
B. commit synchronize
C. commit confirmed
D. commit and-quit
Correct Answer: C
Section: Volume D
Explanation
QUESTION 281
Click the Exhibit button.
Referring to the exhibit, which statement is true?
A. The customer’s link will failover in nine seconds.
B. the customer has not enabled security for BFD.
C. The customer has set the version parameter to automatic.
D. The customer’s link flapped within the last hour.
Correct Answer: D
Section: Volume D
Explanation
QUESTION 282
What are three valid software release designations for the Junos OS? (Choose three.)
A. B
B. T
C. X
D. R
E. Z
Correct Answer: ACD

Section: Volume D
Explanation
QUESTION 283
What are three acceptable modifiers to a terminating action of a firewall filter? (Choose three.)
A. Policer
B. Count
C. Syslog
D. Log
E. Discard
Correct Answer: ABD

Section: Volume D
Explanation
QUESTION 284
Which CIDR notation is the equivalent of the subnet mask of 255.255.192.0?
A. /18
B. /19
C. /17
D. /20
Correct Answer: A
Section: Volume D
Explanation
QUESTION 285
Which two commands will provide the current configuration of the MX1-PE1 BGP group on your router? (Choose two.)
A. user@router# show groups | display set | match MX1-PE1

B. user@router> show configuration | display set | match MX1-PE1
C. user@router> show configuration | match set | match MX1-PE1
D. user@router# show | display set | match MX1-PE1
Correct Answer: BD
Section: Volume D
Explanation
QUESTION 286
Which two commands is used to validate the syntax of a configuration without applying the configuration?
A. commit confirmed
B. commit synchronize
C. commit check
D. commit and-quit
Correct Answer: AC
Section: Volume D
Explanation
QUESTION 287
Which parameter must be included when executing operational mode commands from within configuration mode?
A. insert
B. do
C. prompt
D. run
Correct Answer: D
Section: Volume D
Explanation
QUESTION 288
Which two statements about the Junos OS are true? (Choose two.)
A. It supports Java for automation on all platforms.

B. It uses the same software source code base for all platforms.
C. It uses a different software source code base for each platform.
D. It supports XML for automation on all platforms.
Correct Answer: BD
Section: Volume D
Explanation
QUESTION 289
Which two firewall filter actions will affect a packet’s class-of-service settings? (Choose two.)
A. Forwarding-class
B. Scheduler
C. Queue
D. Loss-priority
Correct Answer: AD
Section: Volume D
Explanation
QUESTION 290
What does the "3" in Junos version 14.2R3.2 represent?
A. A service build number

B. A single-threaded version of the Junos OS
C. A major release numberD. A minor release number
Correct Answer: A
Section: Volume D
Explanation
QUESTION 291
Click the Exhibit button.
You are asked to create a firewall filter to count IPv6 packets that arrive with a no next header value. As shown in the exhibit, you have created and applied the
count-no-header firewall filter to the ge-0/0/0 interface. The commit operation fails.
What is causing this problem?
A. The firewall term does not include inet6 in the from statement.
B. IPv6 interfaces do not support firewall filters.
C. The filter name must be different than the counter name.
D. The firewall family is not correct.
Correct Answer: D
Section: Volume D
Explanation
QUESTION 292
Which set of IP addresses are in the same subnet?
A. 185.114.16.59/28 and 185.114.16.64/28 B.

185.114.16.91/28 and 185.114.16.96/28 C.
185.114.16.77/28 and 185.114.16.82/28
D. 185.114.16.40/28 and 185.114.16.45/28
Correct Answer: D
Section: Volume D
Explanation
QUESTION 293
Which IP protocol number is assigned to TCP?
A. 17 B.
4
C. 18
D. 6
Correct Answer: D
Section: Volume D
Explanation
QUESTION 294
Which three protocols are connectionless? (Choose three.)
A. DNS
B. TFTP
C. ICMP
D. SSH
E. Telnet
Correct Answer: ABC

Section: Volume D
Explanation
QUESTION 295
What are three benefits of using a dynamic routing protocol? (Choose three.)
A. Increased network security

B. Decreased network latency
C. Increased network availability
D. Lower administrative overhead
E. Greater network scalability
Correct Answer: CDE
Section: Volume D
Explanation

Juniper JNCIA-Junos Pass4sure JN0-102 v2018-03-31 by - Justin 295q

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JN0-102.exam.

Juniper Networks Certified Internet Associate, Junos (JNCIA-Junos)

A. The ge-0/0/0 interface was added to the candidate configuration.

A. message of the day

A. Users can be members of multiple login classes.

A. Once saved, a rescue configuration is loaded using the rollback 0 command.

Which statement is correct about the information shown in the exhibit?

A. The factory-default configuration is running on the device.

Which statement is correct?

A. The cable is found on FPC 1, slot 3, and port 2. B.

Which statement is correct?

Which statement is correct?

A. The cable is found on slot 2, port 0, and FPC 1. B.

A. Apply the ge-int group to the configuration at the [edit] hierarchy.

Which command will resolve this problem?

A. delete me0 disable

A. Logical units are similar to VLANs used by other vendors.

A. Any warning message will be sent to the 152.170.10.10 host.

A. load override rescue

Which statement describes the problem?

A. You have typed an invalid command.

Which output applies to this configuration?

[edit interfaces ge-0/0/1]

What must you do to commit the configuration?

Which two transfer methods are available? (Choose two.)

Which command will resolve the problem shown in the exhibit?

A. user@router> request system configuration rescue save

A. show interfaces terse | match up

A. request system reboot

A. It sends only five ping requests to the 172.18.1.1 destination.

A. show chassis temperature-thresholds

A. show interfaces terse

A. ICMP echo requests are sent to 172.19.102.2 in five-millisecond intervals.

Which three commands would display the path? (Choose three.)

A. user@router# traceroute 10.10.10.10

Correct Answer: BCD

A. user@router> request system storage cleanup

A. clear system login

A. show chassis hardware

A. end-to-end communications path

172.23.10.0/24 *[Direct/0] 21:59:56

Users are unable to access resources in the 172.23.14.0/24 subnet. Referring to

A. Configure a separate routing instance.

Correct Answer: BDE

A. The forwarding table contains all known routes.

A. set routing-options static route 10.1.1.1/32 no-retain

A. set routing-options static route 10.1.1.1/32 no-retain

A. show route forwarding-table

A. The BGP import policy accepts all BGP routes.

A. to validate packet receipt on interfaces where the traffic should be received

A. Firewall filters are stateless.

Correct Answer: ACD

A. set protocols ospf import static-routes

A. Traffic matching the my-policy term will be counted and accepted.

Which statement is correct about the policy shown in the exhibit?

A. All routes are accepted.

A. The preference will be 6. B.

Which configuration will resolve this problem?