BÀI TẬP 01

BÀI TẬP 01 - CÁC GIAO THỨC ĐỊNH
TUYẾN

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CÂU HỎI TRẮC NGHIỆM

- Số câu: 25 câu
- Thời gian: 30 phút
What are two advantages of static routing over dynamic routing? (Choose two.)
*
Static routing uses fewer router resources than dynamic routing.
Static routing requires very little knowledge of the network for correct implementation.
Static routing scales well with expanding networks.
Static routing is more secure because it does not advertise over the network.
Static routing is relatively easy to configure for large networks.
What are two functions of dynamic routing protocols? (Choose two.)

*
to choose the path that is specified by the administrator
to discover the network
to assure low router overhead
to avoid exposing network information
to maintain routing tables
Refer to the exhibit. What will the router do with a packet that has a destination IP
address of 192.168.12.227?
*
Send the packet out the GigabitEthernet0/1 interface.
Send the packet out the Serial0/0/0 interface.
Send the packet out the GigabitEthernet0/0 interface.
Drop the packet.
Which value in a routing table represents trustworthiness and is used by the

router to determine which route to install into the routing table when there are
multiple routes toward the same destination?
*
administrative distance
outgoing interface
routing protocol
metric
Refer to the exhibit. A ping from R1 to 10.1.1.2 is successful, but a ping from R1
to any address in the 192.168.2.0 network fails. What is the cause of this
problem?
*
There is no gateway of last resort at R1.
A default route is not configured on R1.
The serial interface between the two routers is down.
The static route for 192.168.2.0 is incorrectly configured.
Refer to the exhibit. What is the administrative distance value of the route for
router R1 to reach the destination IPv6 address of 2001:DB8:CAFE:4::A?
*
1
120
4
110
Which three advantages are provided by static routing? (Choose three.)

*
Static routing typically uses less network bandwidth and fewer CPU operations than dynamic
routing does.
Static routes scale well as the network grows.
No intervention is required to maintain changing route information.
Static routing does not advertise over the network, thus providing better security.
Configuration of static routes is error-free.
The path a static route uses to send data is known.
What characteristic completes the following statement?
When an IPv6 static route is configured, the next-hop address can be ……

*
a destination host route with a /128 prefix.
the “show ipv6 route static” command.
the interface type and interface number.
an IPv6 link-local address on the adjacent router.
On which two routers would a default static route be configured? (Choose two.)
*
any router running an IOS prior to 12.0
edge router connection to the ISP
the router that serves as the gateway of last resort
stub router connection to the rest of the corporate or campus network
any router where a backup route to dynamic routing is needed for reliability
A network administrator configures the interface fa0/0 on the router R1 with the
command ip address 172.16.1.254 255.255.255.0. However, when the
administrator issues the command show ip route, the routing table does not
show the directly connected network. What is the possible cause of the problem?
*
The configuration needs to be saved first.
No packets with a destination network of 172.16.1.0 have been sent to R1.
The subnet mask is incorrect for the IPv4 address.
The interface fa0/0 has not been activated.
Ipv6 route 2001:0DB8::/32 2001:0DB8:3000::1

Which static route is configured here?
*
Fully specified static
Floating static
Recursive static
Directly attached static
Refer to the exhibit. What would happen after the IT administrator enters the new
static route?
*
The 0.0.0.0 default route would be replaced with the 172.16.1.0 static route.
The 172.16.1.0 static route would be entered into the running-config but not shown in the
routing table.
The 172.16.1.0 route learned from RIP would be replaced with the 172.16.1.0 static route.
The 172.16.1.0 static route is added to the existing routes in the routing table.
What two pieces of information are needed in a fully specified static route to
eliminate recursive lookups? (Choose two.)
*
the IP address of the exit interface
the interface ID of the next-hop neighbor
the interface ID exit interface
the administrative distance for the destination network
the IP address of the next-hop neighbor
Refer to the exhibit. The Branch Router has an OSPF neighbor relationship with
the HQ router over the 198.51.0.4/30 network. The 198.51.0.8/30 network link
should serve as a backup when the OSPF link goes down. The floating static
route command ip route 0.0.0.0 0.0.0.0 S0/1/1 100 was issued on Branch and now
traffic is using the backup link even when the OSPF link is up and functioning.
Which change should be made to the static route command so that traffic will
only use the OSPF link when it is up?
*
Change the administrative distance to 1

Change the destination network to 198.51.0.5
Change the administrative distance to 120
Add the next hop neighbor address of 198.51.0.8
Refer to the exhibit. The network engineer for the company that is shown wants
to use the primary ISP connection for all external connectivity. The backup ISP
connection is used only if the primary ISP connection fails. Which set of
commands would accomplish this goal?
*
ip route 198.133.219.24 255.255.255.252; ip route 64.100.210.80 255.255.255.252 10
ip route 198.133.219.24 255.255.255.252; ip route 64.100.210.80 255.255.255.252
ip route 0.0.0.0 0.0.0.0 s0/0/0; ip route 0.0.0.0 0.0.0.0 s0/1/0
ip route 0.0.0.0 0.0.0.0 s0/0/0; ip route 0.0.0.0 0.0.0.0 s0/1/0 10
When an IPv6 static route is configured, the installation of the route can be
verified with ……
*
the “show ipv6 route static” command.
the interface type and interface number.
an administrative distance of 2.
Refer to the exhibit. The small company shown uses static routing. Users on the
R2 LAN have reported a problem with connectivity. What is the issue?
*
R2 needs a static route to the Internet.
R1 needs a static route to the R2 LAN.
R2 needs a static route to the R1 LANs.
R1 and R2 must use a dynamic routing protocol.
R1 needs a default route to R2.
What route would have the lowest administrative distance?

*
a route received through the OSPF routing protocol
a directly connected network
a route received through the EIGRP routing protocol
a static route
Refer to the exhibit. This network has two connections to the ISP, one via router
C and one via router B. The serial link between router A and router C supports
EIGRP and is the primary link to the Internet. If the primary link fails, the
administrator needs a floating static route that avoids recursive route lookups
and any potential next-hop issues caused by the multiaccess nature of the
Ethernet segment with router B. What should the administrator configure?
*
Create a static route pointing to 10.1.1.1 with an AD of 95.
Create a static route pointing to 10.1.1.1 with an AD of 1.
Create a static route pointing to Fa0/0 with an AD of 1.
Create a fully specified static route pointing to Fa0/0 with an AD of 95.
Create a fully specified static route pointing to Fa0/0 with an AD of 1.
What is a characteristic of a static route that matches all packets?

*
It uses a single network address to send multiple static routes to one destination address.
It identifies the gateway IP address to which the router sends all IP packets for which it does not
have a learned or static route.
It backs up a route already discovered by a dynamic routing protocol.
It is configured with a higher administrative distance than the original dynamic routing protocol
has.
Consider the following command:
ip route 192.168.10.0 255.255.255.0 10.10.10.2 5
How would an administrator test this configuration?

*
Ping any valid address on the 192.168.10.0/24 network.
Manually shut down the router interface used as a primary route.
Delete the default gateway route on the router.
Ping from the 192.168.10.0 network to the 10.10.10.2 address.
When an IPv6 static route is configured, it is possible that the same IPv6 link-
local address is used for …
*
the “ipv6 unicast-routing” command.
the next-hop address of two different adjacent routers.
an administrative distance of 2.
What happens to a static route entry in a routing table when the outgoing
interface associated with that route goes into the downstate?
*
The static route remains in the table because it was defined as static.
The router automatically redirects the static route to use another interface.
The static route is removed from the routing table.
The router polls neighbors for a replacement route.
What is an advantage of using dynamic routing protocols instead of static

routing?
*
more secure in controlling routing updates
easier to implement
fewer router resource overhead requirements
ability to actively search for new routes if the current path becomes unavailable
Which route would be used to forward a packet with a source IP address of

192.168.10.1 and a destination IP address of 10.1.1.1?
*
O 10.1.1.0/24 [110/65] via 192.168.200.2, 00:01:20, Serial0/1/0
S* 0.0.0.0/0 [1/0] via 172.16.1.1
C 192.168.10.0/30 is directly connected, GigabitEthernet0/1
S 10.1.0.0/16 is directly connected, GigabitEthernet0/0
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BÀI TẬP 01 - CÁC GIAO THỨC ĐỊNH

CÂU HỎI TRẮC NGHIỆM

What are two functions of dynamic routing protocols? (Choose two.)

Which value in a routing table represents trustworthiness and is used by the

Which three advantages are provided by static routing? (Choose three.)

What characteristic completes the following statement?

When an IPv6 static route is configured, the next-hop address can be ……

Ipv6 route 2001:0DB8::/32 2001:0DB8:3000::1

Change the administrative distance to 1

What characteristic completes the following statement?

What route would have the lowest administrative distance?

What is a characteristic of a static route that matches all packets?

Consider the following command:

ip route 192.168.10.0 255.255.255.0 10.10.10.2 5

How would an administrator test this configuration?

What characteristic completes the following statement?

What is an advantage of using dynamic routing protocols instead of static

Which route would be used to forward a packet with a source IP address of

Xóa hết câu trả lời

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