Exam JN0-103: IT Certification Guaranteed, The Easy Way!

IT Certification Guaranteed, The Easy Way!
Exam : JN0-103
Title : Junos, Associate (JNCIA-Junos)
Vendor : Juniper
Version : V12.95
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NO.1 What configuration parameter on a Junos device modifies the default next-hop resolution
behavior of a static route?
A. Resolve
B. No-readvertise
C. Passive
D. Preference
Answer: A
NO.2 Which two types of traffic are processed by the Routing Engine (RE)?
A. IP packet with the IP Options field
B. time-to-live (TTL) expired messages
C. ICMP destination unreachable messages
D. OSPF update messages
Answer: B C
NO.3 Your firewall filters are not in the correct order, what would solve this problem?
A. Use the next-term action to force an evaluation of the next-term
B. Use the commit parameter to ensure that terms are evaluated correctly
C. Use the reject action to change the action of the filter
D. Use the filter command to reorder the terms with the filter
Answer: D
NO.4 Click the Exhibit button.
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Referring to the exhibit, which two statements are correct? (Choose two.)
A. The memory utilization is 28%
B. The memory utilization is 72%
C. The CPU kernel utilization is 1%
D. The 15 minute CPU load average is 99%
Answer: A C
NO.5 What information would you find using the CLI help function? (Choose two.)
A. tip of the day
B. Junos technical publications
C. explanation of specific system log error messages
D. explanation of traceoption events
Answer: A C
NO.6 Referring to the Exhibit,
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what does the number inside the square bracket represent?

A. local preference
B. router preference
C. metric
D. protocol reference number
Answer: C
NO.7 What would you use as a network tool to open a secure terminal connection from a device
running Junos OS to another device?
A. SSH
B. HTTPS
C. RDP
D. telnet
Answer: A
NO.8 At which hierarchy would you configure a static MAC address for interface ge-0/0/0?
A. [edit interfaces ge-0/0/0 unit 0]
B. [edit interfaces ge-0/0/0]
C. [edit interfaces ge-0/0/0 unit 0 family inet]
D. [edit interfaces ge-0/0/0 unit 0 family inet address 172.25.11.2/24]
Answer: A
NO.9 What is an "X" release of the Junos OS?

A. a standard feature release
B. a special feature release
C. a feature velocity release
D. a feature beta release
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Answer: B
NO.10 Which three statements describe OSPF? (Choose three)

A. OSPF must operate between different autonomous system
B. OSPF calculates the best path to each destination
C. OSPF is a link-state IGP
D. OSPF uses areas to incorporate hierarchy and to allow for scalability
E. OSPF uses a distance-vector algorithm to calculate routing cost
Answer: B C D
NO.11 What will be the result?

A. The device will boot in a multi-user mode at the configuration prompt
B. The device will boot in a Single-user mode at the operational prompt
C. The device will boot in a multi-user mode at the shell prompt
D. The device will boot in a Single-user mode at the shell prompt
Answer: A
NO.12 Given the following configuration,

set system authentication-order [ tacplus ]
Which two statements are correct? (Choose two.)
A. If the TACACS+ server is available and rejects the username/password provided, the user is not
allowed to access the device.
B. If the TACACS+ server is available and rejects the username/password provided, the local
password database is checked.
C. If the TACACS+ server is not available, the user is not allowed to access the device.
D. If the TACACS+ server is not available, the local user database is checked.
Answer: A D
NO.13 Which two keystrokes are used to auto-complete commands? (Choose two.)
A. Spacebar
B. Esc
C. Tab
D. End
Answer: A C
NO.14 What statement is true about the orlonger route-filter match type?
A. All routes within the specified prefix that are longer than the given prefix are considered a match
B. All routes within the specified prefix that are longer or equal to the given prefix up to a defined
acceptable prefix length are considered a match
C. All routes within the specified prefix that are longer or equal to the given prefix are considered a
match
D. All routes within the specified prefix that are longer than the given prefix up to a defined
acceptable prefix length are considered a match
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Answer: A
NO.15 Which statement is true about the longer router-filter match type?
A. All router within the specified prefix that are longer than or equal to the given prefix are
considered a match.
B. All router within the specified prefix that are longer or equal to the given prefix up to a defined
acceptable prefix length are considered a match.
C. All router within the specified prefix that are longer than the given prefix up to a defined
acceptable prefix length are considered a match.
D. All router within the specified prefix that are longer than given prefix are considered a match.
Answer: D
NO.16 Click the Exhibit Button.
You are asked to limit traffic on interface xe-0/0/3 to 1G using the policer shown in the exhibit.
Which configuration would accomplish this task?
A)
B)
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C)
A. Option
B. Option
C. Option
Answer: A
NO.17 What is minimum configuration required for a Junos device to respond to SNMP requests?
A. set snmp community public authorization read only
B. set snmp public version v2
C. set snmp community public
D. set snmp trap-group public version v1
Answer: C
NO.18 Which two methods keep a Junos device operational if the primary storage device fails?
(Choose two.)
A. Create a recovery snapshot.
B. Enable the ephemeral database.
C. Enable J-Web for device management.
D. Create a rescue configuration.
Answer: A D
NO.19 Which command allows you to verify the syntax and consistency of your configuration
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without actually activating your configuration?

A. User Interfaces
B. commit verify
C. commit check
D. check commit
E. commit no-activate
Answer: C
NO.20 What are two services performed by the Packet Forwarding Engine? (Choose two.)
A. to process transit traffic
B. to implement stateless firewall filtering
C. to handle processes that control the device's Interfaces
D. to maintain the routing tables
Answer: A D
NO.21 Which two statements describe a routing policy?

A. Active and inactive routes are available for export from the routing table.
B. A routing policy allows you to control the flow of information into the routing table.
C. Routing policy are used to choose which routes are sent to neighbors using dynamic routing
protocols
D. Attribute changes applied to export policies always affect the local routing table
Answer: B C
NO.22 Which two commands would you use to reset the candidate configuration to the active
configuration?
(Choose two.)
A. rollback 0
B. rollback 1
C. rollback 2
D. rollback
Answer: A D
NO.23 What's is the minimum system-defined user class required to issue clear commands?
A. read-only
B. operator
C. authorized
D. super-user
Answer: B
NO.24 What is the minimum system-defined user class required to issue clear commands?
A. read-only
B. super-user
C. operator
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D. authorized
Answer: C
NO.25 You issue a "request system zeroize" command. Which statement is correct in this scenario?
A. All data files remain unchanged but all configuration settings returned to factory defaults.
B. All data files are deleted and all configuration settings are returned to factory defaults.
C. All data files are deleted and all configuration settings remain unchanged
D. Disk space is freed by rotating log files and a proposed list of files to be deleted is presented.
Answer: B
NO.26 Exhibit:
***Exhibit is Missing***
Which statement is correct when traffic is received from 10.10.10.4?
A. The traffic is counted and accepted
B. The traffic is counted and rejected
C. The traffic is only rejected
D. The traffic is only accepted
Answer: B
NO.27 Which three statements describe the Transmission Control Protocol (TCP)?
(Choose three.)
A. TCP is a transport layer protocol.
B. TCP is faster than the User Datagram Protocol (UDP).
C. TCP provides delivery notification and error-checking mechanisms.
D. TCP uses a best-effort delivery approach.
E. TCP application examples include HTTP and SMTP.
Answer: A C E
NO.28 Which command will change the 172.16.10.1/24 IP address to

172.16.100.1/24 IP address?
A. copy interfaces ge-0/0/2 unit 0 family inet address 172.16.10.1/24 to address 172.16.100.1/24
B. set interfaces ge-0/0/2 unit 0 family inet address 172.16.100.1/24
C. rename interfaces ge-0/0/2 unit 0 family inet address 172.16.10.1/24 to address
172.16.100.1/24
D. insert interface ge-0/0/2 unit 0 family inet address 172.16.10.1/24 before address
172.16.100.1/24
Answer: C
NO.29 Exhibit:
Which statement is true?
A. Traps are allowed from 10.21.15.180
B. Traps are sent to 10.21.15.180
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C. Traps are sent to 10.21.15.16

D. Traps are allowed from 10.21.15.16
Answer: D
NO.30 Routing policies contain which two type of statements? (Choose two.)
A. and
B. from
C. default
D. then
Answer: B D
NO.31 Which two interfaces are considered logical interfaces? (Choose two.)
A. xe-1/1/1
B. ge-2/0/2.0
C. et-5/0/0
D. ae1.1
Answer: C D
NO.32 What are three functions of the RE? (Choose three.)

A. to maintain the forwarding tables
B. to enforce stateless firewall filters
C. to manage the PFE
D. to monitor the chassis
E. to implement policing
Answer: A C D
NO.33 What does the output of the show route forwarding-table command display?
A. The routing protocol databases in the Routing Engine
B. The inactive entries in the Routing Engine's routing table
C. The Routing Engine's forwarding table
D. The Packet Forwarding Engine routing table
Answer: D
NO.34 Which command is used to validate the syntax of a configuration without applying the
configuration?
A. commit check
B. commit confirmed
C. commit synchronize
D. commit and-quit
Answer: A
NO.35 You notice traffic destined to 172.31.17.0/24 is traversing an OSPF path rather than BGP Path
.
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What is causing this behavior?

A. The 172.31.17.0/24 BGP route is missing a valid default next hop
B. The 172.31.17.0/24 BGP has a higher route preference
C. The 172.31.17.0/24 route does not have a valid BGP entry
D. The 172.31.17.0/24 BGP route's outgoing interface is down
Answer: B
NO.36 Which two statements are true about static routes in the Junos OS (Choose Two)
A. Static routes remain in the routing table until you remove them or until they become inactive
B. Static routes are learned by neighboring devices and added to their routing tables
C. Static routes are defined at the [edit routing-instance] hierarchy
D. Static routes must have next hop defined
Answer: A D
NO.37 What is responsible for processing multicast transit traffic?

A. Control plane
B. Management plane
C. RE
D. PFE
Answer: D
NO.38 Referring to the exhibit,
which command will cause this event message?

A. request system logout
B. request system commit
C. request system recover
D. request system halt
Answer: A
NO.39 You are in configuration mode at the top of the hierarchy. How would you save your
configuration to a file on the router?
A. save configuration <filename>
B. save config <filename>
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C. save <filename>
D. save run <filename>
Answer: C
NO.40 Routing policies contain which two types of statements? (Choose two.)
A. from
B. then
C. default
D. and
Answer: A B
NO.41 A packet enters a Junos device. No matching destination entry exists in the forwarding table.
How will the device respond?
A. The RE responds to the source with a destination unreachable notification message
B. The PFE responds to the destination with a source unreachable notification message
C. The PFE responds to the source with a destination unreachable notification message
D. The RE responds to the destination with a source unreachable notification message
Answer: C
NO.42 Exhibit:
Which statement is true about the command shown in the exhibit?

A. There needs to be a ; after top for the command to be accepted as a valid command.
B. Only top should be used, no other options are allowed on the same line.
C. The command shown in the exhibit would be accepted as a valid command.
D. If you replace top with up command, it becomes valid.
Answer: C
NO.43 What is the initial prompt displayed when logging in as the root user?
A. root@router>
B. root@router%
C. root@router#
D. root@router*
Answer: B
NO.44 Given the configuration shown below: set system authentication-order [tacplus] Which two
statement are correct? (Choose two.)
A. If the TACACS+ server is no available, the user is not allowed to access the device.
B. If the TACACS+ server is no available, the local database is checked.
C. If the TACACS+ server is available, and rejects the username/password provided, the local
password database is checked.
D. If the TACACS+ server is available, and rejects the username/password provided, the user is not
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allowed to access the device.

Answer: B D
NO.45 While working on a Junos Device, you receive the message shown.
In this scenario, what would you do to stop the shutdown process?
A. Issue the clear system commit command
B. Issue the clear system reboot command
C. Issue the request system halt in command
D. Issue the request system power-off in command
Answer: C
NO.46 Which command displays the output shown in the exhibit?

A. show chassis temperature-thresholds
B. show chassis environment
C. show chassis hardware
D. show chassis alarms
Answer: B
NO.47 Which command will show files stored in the /var/home/tab directory?
A. lab@router> file list
B. lab@router> file show
C. lab@router> ls
D. [edit] lab@router# rollback ?
Answer: A
NO.48 You have configure an SRX Series device for the first time. When you commit your
configuration, the Junos OS notifies you that you cannot yet commit your configuration. Which
configuration step must you complete?
A. security policies
B. hostname
C. date/time
D. root authentication
Answer: D
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what happens when ping packets are sent to management interface address of the local router?
A. The ping packets are silently discarded
B. An ICMP unreachable message is returned
C. The Ping packets are accepted
D. An ICMP redirect message is returned
Answer: C
NO.50 Which key could you use to auto-complete a command in the Junos CLI?
A. Delete
B. Ctrl+Z
C. Spacebar
D. Right Arrow
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Answer: C
NO.51 You are troubleshooting an issue and want to monitor syslog in real time. Which operational
command accomplish this task?
A. Show log message
B. Monitor start message
C. Show log message | refresh i
D. Monitor traffic interface fxp0.0
Answer: A
NO.52 Which command will completely turn off a Junos device?

A. request system halt
B. request chassis fpc offline
C. request system power-off
D. request system recover
Answer: C
NO.53 You are connected to your Junos device using an SSH connection to the fxp0 interface. No
other interface are currently configured beyond their default setting. You commit a configuration
that makes the fxp0 interface unreachable from your management network. In this scenario, how
would you re-establish communication with the device?
A. Unplug the network cable and plug it back in.
B. Power off and power on the device.
C. Establish an SSH connection to the loopback interface.
D. Connect to the console of the device.
Answer: D
NO.54 When you first log in to a router, how does the router indicate that factory defaults are being
used?
Junos Configuration Basics
A. The router's host name is Amnesiac.
B. The password you used to log in is junos.
C. The router immediately enters configuration mode after you log in.
D. The router allows you to enter configuration mode without logging in.
Answer: A
NO.55 What is the default route preference for OSPF internal?

A. 100
B. 150
C. 5
D. 10
Answer: D
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NO.56 How would you change the display so that 40 lines will be displayed in the terminal program
when you are logged into a junos device?
A. Set the window size of your terminal program
B. Issue that set cli screen-length 40 command from operational mode
C. Set the display options in your terminal program
D. Issue that set cli screen-length 40 command from Configuration mode
Answer: B
NO.57 You are troubleshooting an issue and want to monitor syslog in real time. Which operational
command accomplishes this task?
A. show log messages | refresh 1
B. monitor traffic interface fxp0.0
C. monitor start messages
D. show log messages
Answer: C
NO.58 What are two configurable physical interface properties? (Choose two.)
A. MTU
B. address
C. protocol family
D. link mode
Answer: A D
NO.59 In which directory the traceoption files stored by default?

A. /var/db/
B. /var/tmp/
C. /var/log/
D. /var/home/
Answer: C
NO.60 You are connected to your Junos device using an SSH connection to the txp0 interface. No
other interfaces are currently configured and unreachable from your management network. How
would you reestablish communication with the device?
A. Establish a SSH connection to the loopback interface
B. Unplug the network cable and plug it back in
C. Power off and power on the device
D. Connect to the console of the device
Answer: D
NO.61 Which command verifies configuration syntax without applying the changes?
A. commit and -quit
B. commit check
C. commit comment
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D. commit confirmed
Answer: B
NO.62 Which two conditions must exist in a Junos device for traffic to transit the device to a specific
destination? Choose Two
A. A forwarding table entry for that destination must exist
B. A routing policy must be in place on the device
C. A firewall filter must exist to allow traffic to reach that destination
D. A routing table entry for that destination must exist
Answer: A D
NO.63 You have entered the command "show log messages | match "error | kernel | panic" which
statement is correct regarding the keywords error, kernel and panic in the output?
A. the output messages will contain all messages from the file except the ones that contain all three
defined keywords.
B. the output messages will contain all messages from the file that contains all three defined
Keywords
C. the output messages will contain all messages from the file that contains at least one of the three
defined keywords
D. the output messages will contain all messages from the file except the ones that contains at least
one of the three defined keywords
Answer: C
NO.64 How does the PFE determine how to forward transit traffic?
A. The PFE performs a destination lookup based on its own routing table.
B. The PFE determines network destinations itself based on the RE's routing table.
C. The PFE uses the following table provided by the RE.
D. The PFE uses the routing table provided by the RE.
Answer: C

Referring to the exhibit, how many received packets are classified as exception traffic?
A. 20814681
B. 14442602
C. 12417
D. 27824
Answer: B
NO.66 What are two examples of transit traffic? (Choose two.)

A. SCP traffic that is destined for the router's loopback interface.
B. SCP traffic that enters one interface and exits another interface on the local router.
C. SFTP traffic that enters and exits the same interface on the local router.
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D. SFTP traffic that enters one interface and is destined for another interface on the local router
Answer: A D
NO.67 When multiple users are editing the configuration on a Junos device, What is the default
behavior when a user issues a commit command?
A. The user's configuration changes are committed, other users configuration changes are still
pending
B. The user's configuration changes are committed, other users will be exited from the configuration
mode
C. All valid configuration changes made by all users will take effect
D. The user will receive an error message disallowing a commit of the configuration
Answer: A
NO.68 Which keystroke combination allows users to move the cursor to the end of the command
line without deleting text?
A. Ctrl + a
B. Ctrl + e
C. Ctrl + u
D. Ctrl + w
Answer: B
NO.69 You notice that the terms in your firewall filter are not in the correct order. What would solve
this problem?
A. Use the insert command to reorder the terms within the filter.
B. Use the count parameter to ensure that the terms are evaluated correctly.
C. Use the reject action to change the action of the filter.
D. Use the next term action to force an evaluation of the next term.
Answer: A
You configured the route filter shown in the exhibit.
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In this scenario, which IP addresses would term-One accept?

A. IP addresses that are part of the 172.35.0.0/16 network and IP addresses that are in the
172.35.0.0/16 and 172.36.0.0/16 subnets.
B. IP addresses that are part of the 172.35.0.0/16 network only.
C. IP addresses that are part of the 172.35.0.0/16 network and IP addresses that are in the subnets of
172.35.0.0/16 network.
D. IP addresses that are part of the 172.35.0.0/16 network, but not IP addresses that are part of the
172.35.0.0/16 network itself.
Answer: C
NO.71 What is the default location of the syslog file on Junos devices?
A. /var/log/
B. /var/tmp/
C. /var/home/
D. /var/db/
Answer: A
NO.72 Referring to the Exhibit,
What information is provided about the route to 192.168.47.0/24?

Choose Two
A. There is a single active route to 192.168.47.0/24
B. There are two next-hops available to 192.168.47.0/24
C. There is a single next-hop available to 192.168.47.0/24
D. There are two active route to 192.168.47.0/24
Answer: A C
NO.73 In which directory are trace option files stored by default?

A. /var/tmp/
B. /var/log/
C. /var/home/
D. /var/db/
Answer: B
NO.74 A BGP route does not match any term within a routing policy applied to BGP. Which action is
taken by the router for this route?
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A. It discards the route by the implicit 'discard all' at the end of the policy.
B. It advertises the route according to BGP rules.
C. It discards the route by the default routing protocols policy.
D. It discards the route because it is unable to match the route to a configured action.
Answer: B
NO.75 What is the maximum number of configurations, by default, that are recoverable using the
rollback command?
A. 50
B. 25
C. 100
D. 75
Answer: A
NO.76 Which two statements describe IPv4 default behavior for BGP? Choose Two
A. All Active BGP routes are exported to configured EBGP neighbors
B. All BGP routes are exported to configured EBGP neighbors
C. All BGP routes are imported into the inet.0 routing table
D. All BGP routes are imported into the inet4.0 routing table
Answer: A C
NO.77 Which keystroke is used to auto-complete user-defined variables?

A. Spacebar
B. Home
C. Esc
D. Tab
Answer: D
NO.78 In your configuration, an interface contains multiple IP addresses belonging to the same
subnet. You want to identify the IP address to use for packets sent to hosts on the same subnet.
Which parameter would you use to accomplish this task?
A. relative
B. preferred
C. primary
D. patch
Answer: B
NO.79 Which two statements describe PFE functions are true?

A. The PFE implements rate limiting using policers
B. The PFE stores the master copy of the layer 2 and layer 3 forwarding tables
C. The PFE provides access to the CLI and Jweb
D. The PFE stores a local copy of the layer 2 and layer 3 forwarding tables
Answer: A D
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NO.80 Which two keystrokes will auto-complete a command? (Choose two.)

A. Esc
B. Tab
C. Spacebar
D. End
Answer: B C
NO.81 You have received a request from the user, SecurityTeam, to notify their terminal connection
only when someone commits a change to the configuration of a specific networking device. Which
command would you input in this scenario?
A. set system syslog user SecurityTeam change-log alert
B. set system syslog user SecurityTeam change-log any
C. set system syslog user SecurityTeam interactive-commands any
D. set system syslog user SecurityTeam interactive-commands
Answer: B
NO.82 You have the policy configuration shown in the exhibit applied to a BGP peering. You
determine that customer routes coming from the 10.1.1.0/24 network are being rejected Which
action should be used to correct the problem?
A. [edit policy-options policy-statement my-policy]
user@router# copy term 2 to term 1
B. [edit policy-options policy-statement my-policy]
user@router# rename term 1 to term 3
C. [edit policy-options policy-statement my-policy]
user@router# copy term 2 to term 0
D. [edit policy-options policy-statement my-policy]
user@router# insert term 2 before term 1
Answer: C
Referring to the exhibit, which command was issued to generate the output?
A. show chassis routing-engine
B. show chassis hardware
C. show chassis environment
D. show chassis fpc
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Answer: B
NO.84 By default, which character indicates the UNIX shell prompt?

A. %
B. $
C. >
D. #
Answer: A
NO.85 What is the purpose of the discard action of a firewall filter?

A. The system drops the packet and logs the entry.
B. The system drops the packet and sends an ICMP message.
C. The system silently drops the packet.
D. The system evaluates the next term in the policy.
Answer: C
NO.86 You are in configuration mode at the top of the hierarchy. You need to abort the changes that
you have made and start again with a fresh copy of the active configuration. Which command should
you use to accomplish this task?
A. rollback 0
B. load active
C. reset config
D. clear candidate config
Answer: A
which dynamic routing protocol would be used for this topology?

A. IGMPv3
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B. OSPFv2
C. RIPng
D. RIP
Answer: C
NO.88
Referring to the exhibit, what does the number inside the square brackets represent?
A. local preference
B. metric
C. protocol reference number
D. route preference
Answer: D
NO.89 ***Exhibit is Missing***

Which command produced the output shown in the exhibit?
A. Show interfaces summary
B. Show interfaces filters
C. Show interfaces extensive
D. Show interfaces terse
Answer: D
NO.90 Which logical interface is able to forward IP traffic?

A. Ge-0/0/0
B. Ge-0/0/2
C. Ge-0/0/2.0
D. Ge-0/0/1.0
Answer: C
NO.91 Refer to Exhibit:
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Which parameter at the end of the command would provide information for troubleshooting
pusposes?
A. No-timestamp
B. Extensive
C. Print-ascii
D. No-resolve
Answer: B
NO.92 Which two features are implemented on the Packet Forwarding Engine? (Choose Two)
A. Chassis Management
B. Firewall Filters
C. Class of Service
D. Routing protocol update
Answer: B C
NO.93 While working on a Junos device, you receive the message shown in the exhibit.
In this scenario, what should you do to stop the shutdown process?
A. Issue the request system halt in 0 command
B. Issue the request system power-off in 0 command
C. Issue the clear system reboot command
D. Issue the clear system commit command
Answer: A
NO.94 How would you change the display so that 40 lines will be displayed in the terminal program
when you are logged into a Junos device?
A. Issue the set cli screen-length 40 command from operational mode.
B. Issue the set cli screen-length 40 command from configuration mode
C. Set the display options in your terminal program.
D. Set the window size of your terminal program.
Answer: A
NO.95 Which command displays all IPv4 routes in the default routing instance?
A. show route table inet.0
B. show route table inet.2
C. show route table inet6.0
D. show route table inet.1
Answer: A
NO.96 Exhibit:
Which type of route does the configuration create?
A. an indirect next hop
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B. a generated route
C. a non-advertised route
D. a default gateway
Answer: B
NO.97 Which routing table is used for multicasting forwarding cache?

A. Inet.3
B. Inet.0
C. Inet.1
D. Inet.2
Answer: C
NO.98 ***Exhibit is Missing***

What does the number inside the square bracket represent?
A. Metric
B. Local preference
C. Protocol reference number
D. Route preference
Answer: D
Referring to the exhibit, what happens to a packet that has a destination address of 172.17.0.1?
A. The packet is forwarded to the next hop defined in the default route.
B. The packet is silently discarded.
C. The packet is rejected and an ICMP network unreachable message is sent to the source address.
D. The packet is forwarded to the next hop of the management network.
Answer: C
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NO.100 What happens when a route does not match any user-configured policies?
A. The route is rejected.
B. The route is accepted.
C. The route is given a lower priority.
D. The route is sent to the default policy.
Answer: D
NO.101 Which two interfaces are considered physical interface? Choose TWO
A. Ge-0/0/0
B. Et-3/0/0:0.501
C. Et-7/1/4:0
D. Xe-10/2/1
Answer: A D
NO.102 What are two benefits realized by the disaggregated Junos? (Choose two.)
A. The platform drivers and forwarding engineer are removed from the control plane to increase
performance.
B. The architecture facilitates programmability through provisioning the control plane, the data path,
and the platform API's.
C. There is increased flexibility to use different control plane versions.
D. The Junos VM becomes hardware-independent and can be deployed on any hypervisor without
modification.
Answer: A B
NO.103 You successfully established a BGP session with peer, but do not see any routes learned
from the peer, What would cause this problem?
A. A routing policy is blocking BGP from learning the routes
B. Unicast reverse-path-forwarding is blocking BGP from learning the routes
C. A security policy is blocking BGP from learning the routes
D. The firewall filter is blocking the BGP from learning the routes
Answer: A
NO.104 Which parameter of the monitor traffic command should be used with caution when
considering storage space on a Junos device?
A. detail
B. write-file
C. layer2-headers
D. extensive
Answer: B

which command will change the 172.16.10.1/24 IP address to 172.6.100.1/24 IP address?
26
A. Set interfaces ge-0/0/2 unit 0 family inet address 172.16.100.1/24

B. copy interfaces ge-0/0/2 unit 0 family inet address 172.16.10.1/24 to address 172.16.100.1/24
C. rename interfaces ge-0/0/2 unit 0 family inet address 172.16.10.1/24 to address 172.16.100.1/24
D. insert interfaces ge-0/0/2 unit 0 family inet address 172.16.10.1/24 before address
172.16.100.1/24
Answer: A
NO.106 You are considering to upgrade from 19.1R1 and want to ensure that only bug fixes are
included. Which two software versions should you use in the current situation? Choose Two
A. 19.3R2
B. 19.1R3
C. 19.1R1-S2
D. 19.3R1-S1
Answer: B C
NO.107 When a system process encounters an error, how does the Junos OS protect the other
processes from being impacted?
A. The Junos OS executes only one process at a time.
B. Each routing protocol runs as an individual process.
C. Each process operates in its own shared memory space.
D. The Junos OS executes multiple processes simultaneously.
Answer: B
Referring to the exhibit, which logical interface is able to forward IP traffic?

A. ge-0/0/0
B. ge-0/0/2.0
C. ge-0/0/2
D. ge-0/0/1.0
Answer: D
NO.109 How would you change the display so the display so that 40 lines will be displayed in the
terminal program when you are logged into a Junos device?
A. Issue the set cli screen-length 40 command from configuration mode.
B. Set the display options in your terminal program.
C. Issue the set cli screen-length 40 command from operational mode.
D. Set the windows size of your terminal program.
Answer: C
27
NO.110 Which two statements are true regarding dynamic routing? (Choose two)
A. Dynamic routing is used when absolute control of routing parameters is necessary
B. Dynamic routing allows a device to automatically reroute traffic around a failure
C. Participating devices dynamically learn routing information from each other
D. Dynamic routing requires more administrative overhead than static routing
Answer: B C
NO.111 Which two statements describe the connection between control plane and forwarding
plane?
Choose Two
A. No rate limiter is configured by default
B. A rate limiter is configured by default
C. Exception traffic is preferred over the control traffic during congestion
D. Control traffic is preferred over the exception traffic during congestion
Answer: B D
NO.112 You issue the request system zeroize command. Which statement is correct in this scenario?
A. All data files are deleted and all configuration setting are returned to factory defaults.
B. All data files remain unchanged but all configuration setting are returned to factory defaults.
C. Disk space is freed by rotating log files and a proposed list of files to delete is presented.
D. All data files are deleted and the configuration settings remain unchanged.
Answer: A
NO.113 What is the purpose of the load merge command?

A. to add or delete variables from the configuration based on the contents of a specified path file.
B. to completely overwrite the current configuration with the configuration you load.
C. to combine the current configuration with the configuration you load.
D. to look for a replace tag in the configuration you load.
Answer: C
NO.114 Which two platforms are supported in physical and virtual form factors? (Choose two.)
A. NFX Series
B. SRX Series
C. MX Series
D. ACX Series
Answer: B C
NO.115 Which command is used to replace the current configuration?

A. load replace
B. load patch
C. load override
D. load set
28
Answer: C
NO.116 Which account is used to access a Junos device in a factory-default configuration?

A. root
B. admin
C. lab
D. juniper
Answer: A
NO.117 Which parameter would you use to prohibit the redistribution of a static route used for
management traffic?
A. no-readvertise
B. discard
C. reject
D. passive
Answer: A
NO.118 What are two examples of transit traffic? (Choose two.)

A. SFTP traffic that enter one interface and is destine for another interface on the local router.
B. SCP traffic that enters one interface and exit another interface on the local router.
C. SFTP traffic that enters and exits the same interface on the local router.
D. SCP traffic that is destined for the router's loopback interface.
Answer: B C
NO.119 What will be the result?

A. The device will boot in single-user mode at the operational prompt.
B. The device will boot into single-user mode at the shell prompt.
C. The device will boot into multi-user mode at the shell prompt.
D. The device will boot in multi-user mode at the configuration prompt.
Answer: C
29
A user attempts to log in to a Junos device. but the RADIUS server is unreachable.
Referring to the exhibit, what is the default action of a Junos device in this scenario?
A. The Junos device retries every 30 seconds until the connection is restored.
B. The Junos device uses the local authentication database.
C. The Junos device displays a RADIUS connection error.
D. The Junos device prompts for a cached RADIUS password.
Answer: C
NO.121 How many IP addresses can be configured on a given interface?

A. one primary and one secondary
B. one
C. as many as you want
D. one primary and multiple secondary
Answer: C
NO.122 Which two interfaces are considered physical interfaces? (Choose two.)
A. xe-10/2/1
B. ge-0/0/0
C. et-3/0/0/0:0.501
D. et-7/1/4.0
Answer: A B
Which next-hop interface will be used to reach the 10.21.14.16 destination?

A. ge-0/0/1.0
B. ge-0/0/0.0
C. ge-0/0/3.0
D. ge-0/0/2.0
Answer: D
NO.124 The monitor traffic command provides access to which utility?

A. tcpdump
B. telnet
30
C. traceroute
D. netstat
Answer: A
NO.125 Which protocol family is required prior to assigning an IP address to an interface?

A. ip
B. ip6
C. inet
D. inet4
Answer: C
NO.126 Which command is used to load the rescue configuration?

A. load merge rescue
B. rollback rescue
C. rollback 0
D. load replace rescue
Answer: B
NO.127 What are two modes of unicast reverse path forwarding? (Choose two.)
A. Strict
B. High
C. Low
D. Loose
Answer: A D
Explanation
There are two modes of unicast RPF, strict mode, and loose mode. The default is strict mode, which
means the switch forwards a packet only if the receiving interface is the best return path to the
packet's unicast source address.
https://www.juniper.net/documentation/en_US/junos/topics/topic-map/l3-vpns-unicast-reverse-
path.html#:~:text
NO.128 You have configured an SRX Series device for the first time. When you command your
configuration, the Junos OS notifies you that you cannot yet commit your configuration. Which
configuration step must you complete?
A. hostname
B. date/time
C. root authentication
D. security policies
Answer: C
31
Referring to the exhibit, which action would synchronize the local router's clock with the NTP server?
A. Configure the correct NTP trusted key using the net trusted-key <key-value> configuration
command under the [edit system ntp] hierarchy.
B. Issue the set date ntp operational command.
C. Configure the NTP server using the set boot-server 172.25.11.254 configuration command under
the [edit system ntp] hierarchy.
D. Reboot the router.
Answer: C
NO.130 You are attempting to upgrade the Junos OS on your device, but there is not enough space
to complete the upgrade. Which parameter, added to the request system software add command,
would solve the problem?
A. no-validate
B. no-copy
C. validate
D. force
Answer: B
NO.131 Which two platforms are supposed in both physical and virtual form factors? Choose TWO
A. NFX Series
B. ACX Series
C. SRX Series
D. MX Series
Answer: C D
NO.132 Depending on the device type, Junos is built upon which two OS kernels? (Choose two.)
A. NetBSD
B. FreeBSD
C. Linux
D. OpenBSD
Answer: B C
NO.133 What are two default password requirements on devices running Junos OS? (Choose two.)
A. Passwords must be at least six characters in length.
B. An expiration date must be set.
C. Passwords must contain at least one special character.
D. Alphanumeric characters classes must be used.
Answer: A D
32
What is the next hop for a packet destined to 192.168.80.98 as shown in the exhibit?
A. 192.168.11.2
B. 172.18.6.1
C. 172.25.11.254
D. 172.18.7.1
Answer: B
NO.135 Which two statements are true about the default behavior of Junos routing policies?
(Choose two.)
A. Routing policies can export active and inactive routes.
B. Routing policies can export only active routes.
C. Routing policies control the flow of routing information going to and from the routing table.
D. Routing policies control the flow of routing information going to and from the forwarding table.
Answer: B D
NO.136 Which keystrokes are used to auto-complete user-defined variables?

A. Spacebar
B. Home
C. End
33
D. Tab CC
Answer: D
NO.137 A Junos device is configured with multiple routing protocols to the same destination prefix.
By Default, which route will be active in the forwarding table?
A. A static route
B. An OSPF route
C. An IS-IS route
D. A BGP route
Answer: A
NO.138 Which two interfaces are considered as physical interface? (Choose two.)
A. xe-1/1/1
B. ge-2/0/2.0
C. et-5/0/0
D. ae1.1
Answer: A B
Referring to the exhibit,

what information is provided about the route to 192.168.47.0/24?
(Choose two.)
A. There is a single next hop available to 192.168.47.0/24.
B. There are two active routes to 192.168.47.0/24.
C. There are two next hops available to 192.168.47.0/24.
D. There is a single active route to 192.168.47.0/24.
Answer: C D
NO.140 What is the maximum number of rollback files a Junos device can store?
A. 5
B. 10
34
C. 49
D. 50
Answer: D
35

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Title : Junos, Associate (JNCIA-Junos)

NO.4 Click the Exhibit button.

NO.6 Referring to the Exhibit,

what does the number inside the square bracket represent?

NO.9 What is an "X" release of the Junos OS?

NO.10 Which three statements describe OSPF? (Choose three)

NO.11 What will be the result?

NO.12 Given the following configuration,

NO.16 Click the Exhibit Button.

without actually activating your configuration?

NO.21 Which two statements describe a routing policy?

NO.28 Which command will change the 172.16.10.1/24 IP address to

C. Traps are sent to 10.21.15.16

NO.32 What are three functions of the RE? (Choose three.)

What is causing this behavior?

NO.37 What is responsible for processing multicast transit traffic?

NO.38 Referring to the exhibit,

which command will cause this event message?

Which statement is true about the command shown in the exhibit?

allowed to access the device.

NO.46 Which command displays the output shown in the exhibit?

NO.49 Referring to the exhibit,

NO.52 Which command will completely turn off a Junos device?

NO.55 What is the default route preference for OSPF internal?

NO.59 In which directory the traceoption files stored by default?

NO.65 Click the Exhibit button.

NO.66 What are two examples of transit traffic? (Choose two.)

NO.70 Click the Exhibit button.

You configured the route filter shown in the exhibit.

In this scenario, which IP addresses would term-One accept?

NO.72 Referring to the Exhibit,

What information is provided about the route to 192.168.47.0/24?

NO.73 In which directory are trace option files stored by default?

NO.77 Which keystroke is used to auto-complete user-defined variables?

NO.79 Which two statements describe PFE functions are true?

NO.80 Which two keystrokes will auto-complete a command? (Choose two.)

NO.83 Click the Exhibit button.

NO.84 By default, which character indicates the UNIX shell prompt?

NO.85 What is the purpose of the discard action of a firewall filter?

NO.87 Referring to the exhibit,

which dynamic routing protocol would be used for this topology?

NO.89 ***Exhibit is Missing***

NO.90 Which logical interface is able to forward IP traffic?

NO.91 Refer to Exhibit:

NO.97 Which routing table is used for multicasting forwarding cache?

NO.98 ***Exhibit is Missing***

NO.99 Click the Exhibit button.

NO.105 Referring to the exhibit,

A. Set interfaces ge-0/0/2 unit 0 family inet address 172.16.100.1/24

NO.108 Click the Exhibit button.

Referring to the exhibit, which logical interface is able to forward IP traffic?

NO.113 What is the purpose of the load merge command?

NO.115 Which command is used to replace the current configuration?

NO.116 Which account is used to access a Junos device in a factory-default configuration?

NO.118 What are two examples of transit traffic? (Choose two.)

NO.119 What will be the result?

NO.120 Click the Exhibit button.

NO.89 Exhibit is Missing

NO.98 Exhibit is Missing