Ip Routing(Computer Aptitude > Networking ) Questions and answers for exam Preparation

Computer Aptitude > Networking

IP ROUTING MCQs

Total Questions : 37 | Page 3 of 4 pages

Question 21. 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

172.16.30.0
192.168.30.0
10.0.0.0
All of them will be placed in the neighbor routing table.

Discuss Question

Answer: Option C. -> 10.0.0.0

Question 22. Which command displays RIP routing updates?

show ip route
debug ip rip
show protocols
debug ip route

Discuss Question

Answer: Option B. -> debug ip rip

Question 23. Two connected routers are configured with RIP routing. What will be the result when a router receives a routing update that contains a higher-cost path to a network already in its routing table?

The updated information will be added to the existing routing table.
The update will be ignored and no further action will occur.
The updated information will replace the existing routing table entry.
The existing routing table entry will be deleted from the routing table and all routers will exchange routing updates to reach convergence.

Discuss Question

Answer: Option B. -> The update will be ignored and no further action will occur.

Question 24. What command is used to stop RIP routing updates from exiting out an interface but still allow the interface to receive RIP route updates?

Router(config-if)# no routing
Router(config-if)# passive-interface
Router(config-router)# passive-interface s0
Router(config-router)# no routing updates

Discuss Question

Answer: Option C. -> Router(config-router)# passive-interface s0

Question 25. 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

The packet will be discarded.
The packet will be routed out the S0/0 interface.
The router will broadcast looking for the destination.
The packet will be routed out the Fa0/0 interface.

Discuss Question

Answer: Option A. -> The packet will be discarded.

Question 26. You type debug ip rip 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?

The route is 16 hops away.
The route has a delay of 16 microseconds.
The route is inaccessible.
The route is queued at 16 messages a second.

Discuss Question

Answer: Option C. -> The route is inaccessible.

Question 27. . 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?

IGRP has a faster update timer.
IGRP has a lower administrative distance.
RIP has a higher metric value for that route.
The IGRP route has fewer hops.

Discuss Question

Answer: Option B. -> IGRP has a lower administrative distance.

Question 28. . 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?

Any available route
RIP route
Static route
IGRP route

Discuss Question

Answer: Option C. -> Static route

Question 29. . What is route poisoning?

It sends back the protocol received from a router as a poison pill, which stops the regular updates.
It is information received from a router that can't be sent back to the originating router.
It prevents regular update messages from reinstating a route that has just come up.
It describes when a router sets the metric for a downed link to infinity.

Discuss Question

Answer: Option D. -> It describes when a router sets the metric for a downed link to infinity.