Explore topic-wise MCQs in Networking.

This section includes 22 Mcqs, each offering curated multiple-choice questions to sharpen your Networking knowledge and support exam preparation. Choose a topic below to get started.

1.

You type on your router console and see that 172.16.10.0 is being advertised to you with a metric of 16. What does this mean?

A. The route is 16 hops away.
B. The route has a delay of 16 microseconds.
C. The route is inaccessible.
D. The route is queued at 16 messages a second.
Answer» D. The route is queued at 16 messages a second.
Discussion
2.

Which of the following statements are true regarding the command ?

A. 1 and 2
B. 2 and 4
C. 3 and 4
D. All of the above
Answer» B. 2 and 4
Discussion
3.

A network administrator views the output from the command. A network that is advertised by both RIP and IGRP appears in the routing table flagged as an IGRP route. Why is the RIP route to this network not used in the routing table?

A. IGRP has a faster update timer.
B. IGRP has a lower administrative distance.
C. RIP has a higher metric value for that route.
D. The IGRP route has fewer hops.
Answer» C. RIP has a higher metric value for that route.
Discussion
4.

You have the following routing table. Which of the following networks will not be placed in the neighbor routing table?R192.168.30.0/24 [120/1] via 192.168.40.1, 00:00:12, Serial0C192.168.40.0/24 is directly connected, Serial0172.16.0.0/24 is subnetted, 1 subnetsC172.16.30.0 is directly connected, Loopback0R192.168.20.0/24 [120/1] via 192.168.40.1, 00:00:12, Serial0R10.0.0.0/8 [120/15] via 192.168.40.1, 00:00:07, Serial0C192.168.50.0/24 is directly connected, Ethernet0

A. 72.16.30.0
B. 92.168.30.0
C. 0.0.0.0
D. ll of them will be placed in the neighbor routing table
Answer» D. ll of them will be placed in the neighbor routing table
Discussion
5.

Which statement is true regarding classless routing protocols?1. The use of discontiguous networks is not allowed.2. The use of variable length subnet masks is permitted.3. RIPv1 is a classless routing protocol.4. IGRP supports classless routing within the same autonomous system.5. RIPv2 supports classless routing.

A. , 3 and 5
B. and 4
C. and 5
D. one of the above
Answer» D. one of the above
Discussion
6.

The Corporate router receives an IP packet with a source IP address of 192.168.214.20 and a destination address of 192.168.22.3. Looking at the output from the Corporate router, what will the router do with this packet?Corp#sh ip route[output cut]R192.168.215.0 [120/2] via 192.168.20.2, 00:00:23, Serial0/0R192.168.115.0 [120/1] via 192.168.20.2, 00:00:23, Serial0/0R192.168.30.0 [120/1] via 192.168.20.2, 00:00:23, Serial0/0C192.168.20.0 is directly connected, Serial0/0C192.168.214.0 is directly connected, FastEthernet0/0

A. he packet will be discarded.
B. he packet will be routed out the S0/0 interface.
C. he router will broadcast looking for the destination.
D. he packet will be routed out the Fa0/0 interface.
E. hey will all load-balance.
Answer» B. he packet will be routed out the S0/0 interface.
Discussion
7.

Which two of the following are true regarding the distance-vector and link-state routing protocols?1. Link state sends its complete routing table out all active interfaces on periodic time intervals.2. Distance vector sends its complete routing table out all active interfaces on periodic time intervals.3. Link state sends updates containing the state of its own links to all routers in the internetwork.4. Distance vector sends updates containing the state of its own links to all routers in the internetwork.

A. only
B. only
C. and 3 only
D. one of the above
Answer» D. one of the above
Discussion
8.

What does RIPv2 use to prevent routing loops?1. CIDR2. Split horizon3. Authentication4. Classless masking5. Holddown timers

A. and 3
B. , 3 and 5
C. and 5
D. and 4
Answer» D. and 4
Discussion
9.

Network 206.143.5.0 was assigned to the Acme Company to connect to its ISP. The administrator of Acme would like to configure one router with the commands to access the Internet. Which commands could be configured on the Gateway router to allow Internet access to the entire network?1. Gateway (config) # ip route 0.0.0.0 0.0.0.0206.143.5.22. Gateway (config) # router rip3. Gateway (config-router) # network 206.143.5.04. Gateway (config-router) # network 206.143.5.0 default

A. only
B. only
C. , 2 and 4
D. and 4
Answer» E.
Discussion
10.

IGRP uses which of the following as default parameters for finding the best path to a remote network?1. Hop count2. MTU3. Cumulative interface delay4. STP5. Path bandwidth value

A. and 3
B. and 5
C. , 3 and 5
D. ll of the above
Answer» C. , 3 and 5
Discussion
11.

The Corporate router receives an IP packet with a source IP address of 192.168.214.20 and a destination address of 192.168.22.3. Looking at the output from the Corporate router, what will the router do with this packet? Corp#sh ip route [output cut] R 192.168.215.0 [120/2] via 192.168.20.2, 00:00:23, Serial0/0 R 192.168.115.0 [120/1] via 192.168.20.2, 00:00:23, Serial0/0 R 192.168.30.0 [120/1] via 192.168.20.2, 00:00:23, Serial0/0 C 192.168.20.0 is directly connected, Serial0/0 C 192.168.214.0 is directly connected, FastEthernet0/0

A. The packet will be discarded.
B. The packet will be routed out the S0/0 interface.
C. The router will broadcast looking for the destination.
D. The packet will be routed out the Fa0/0 interface.
Answer» B. The packet will be routed out the S0/0 interface.
Discussion
12.

Network 206.143.5.0 was assigned to the Acme Company to connect to its ISP. The administrator of Acme would like to configure one router with the commands to access the Internet. Which commands could be configured on the Gateway router to allow Internet access to the entire network? Gateway(config)# ip route 0.0.0.0 0.0.0.0 206.143.5.2 Gateway(config)# router rip Gateway(config-router)# network 206.143.5.0 Gateway(config-router)# network 206.143.5.0 default

A. 1 only
B. 3 only
C. 1, 2 and 4
D. 1 and 4
Answer» E.
Discussion
13.

What does RIPv2 use to prevent routing loops? CIDR Split horizon Authentication Classless masking Holddown timers

A. 1 and 3
B. 2, 3 and 5
C. 2 and 5
D. 3 and 4
Answer» D. 3 and 4
Discussion
14.

A network administrator views the output from the show ip route command. A network that is advertised by both RIP and IGRP appears in the routing table flagged as an IGRP route. Why is the RIP route to this network not used in the routing table?

A. IGRP has a faster update timer.
B. IGRP has a lower administrative distance.
C. RIP has a higher metric value for that route.
D. The IGRP route has fewer hops.
Answer» C. RIP has a higher metric value for that route.
Discussion
15.

If your routing table has a static, a RIP, and an IGRP route to the same network, which route will be used to route packets by default?

A. Any available route
B. RIP route
C. Static route
D. IGRP route
Answer» D. IGRP route
Discussion
16.

Which two of the following are true regarding the distance-vector and link-state routing protocols? Link state sends its complete routing table out all active interfaces on periodic time intervals. Distance vector sends its complete routing table out all active interfaces on periodic time intervals. Link state sends updates containing the state of its own links to all routers in the internetwork. Distance vector sends updates containing the state of its own links to all routers in the internetwork.

A. 1 only
B. 3 only
C. 2 and 3 only
D. None of the above
Answer» D. None of the above
Discussion
17.

Which statement is true regarding classless routing protocols? The use of discontiguous networks is not allowed. The use of variable length subnet masks is permitted. RIPv1 is a classless routing protocol. IGRP supports classless routing within the same autonomous system. RIPv2 supports classless routing.

A. 1, 3 and 5
B. 3 and 4
C. 2 and 5
D. None of the above
Answer» D. None of the above
Discussion
18.

IGRP uses which of the following as default parameters for finding the best path to a remote network? Hop count MTU Cumulative interface delay STP Path bandwidth value

A. 1 and 3
B. 3 and 5
C. 2, 3 and 5
D. All of the above
Answer» C. 2, 3 and 5
Discussion
19.

What is split horizon?

A. Information about a route should not be sent back in the direction from which the original update came.
B. It splits the traffic when you have a large bus (horizon) physical network.
C. It holds the regular updates from broadcasting to a downed link.
D. It prevents regular update messages from reinstating a route that has gone down.
Answer» B. It splits the traffic when you have a large bus (horizon) physical network.
Discussion
20.

You have the following routing table. Which of the following networks will not be placed in the neighbor routing table? R 192.168.30.0/24 [120/1] via 192.168.40.1, 00:00:12, Serial0 C 192.168.40.0/24 is directly connected, Serial0 172.16.0.0/24 is subnetted, 1 subnets C 172.16.30.0 is directly connected, Loopback0 R 192.168.20.0/24 [120/1] via 192.168.40.1, 00:00:12, Serial0 R 10.0.0.0/8 [120/15] via 192.168.40.1, 00:00:07, Serial0 C 192.168.50.0/24 is directly connected, Ethernet0

A. 172.16.30.0
B. 192.168.30.0
C. 10.0.0.0
D. All of them will be placed in the neighbor routing table.
Answer» D. All of them will be placed in the neighbor routing table.
Discussion
21.

What command is used to stop RIP routing updates from exiting out an interface but still allow the interface to receive RIP route updates?

A. Router(config-if)# no routing
B. Router(config-if)# passive-interface
C. Router(config-router)# passive-interface s0
D. Router(config-router)# no routing updates
Answer» D. Router(config-router)# no routing updates
Discussion
22.

Which of the following statements are true regarding the command ip route 172.16.4.0 255.255.255.0 192.168.4.2? The command is used to establish a static route. The default administrative distance is used. The command is used to configure the default route. The subnet mask for the source address is 255.255.255.0.

A. 1 and 2
B. 2 and 4
C. 3 and 4
D. All of the above
Answer» B. 2 and 4
Discussion