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Computer Aptitude > Networking

IP ROUTING MCQs

Total Questions : 37 | Page 1 of 4 pages
Question 1. Which of the following statements are true regarding the command ip route 172.16.4.0 255.255.255.0 192.168.4.2?
1. The command is used to establish a static route.
2. The default administrative distance is used.
3. The command is used to configure the default route.
4. The subnet mask for the source address is 255.255.255.0.
  1.    1 and 2
  2.    2 and 4
  3.    3 and 4
  4.    All of the above
 Discuss Question
Answer: Option A. -> 1 and 2
Question 2. Which command displays RIP routing updates?
  1.    show ip route
  2.    debug ip rip
  3.    show protocols
  4.    debug ip route
 Discuss Question
Answer: Option B. -> debug ip rip
Question 3. What is split horizon?
  1.    Information about a route should not be sent back in the direction from which the original update came.
  2.    It splits the traffic when you have a large bus (horizon) physical network.
  3.    It holds the regular updates from broadcasting to a downed link.
  4.    It prevents regular update messages from reinstating a route that has gone down.
 Discuss Question
Answer: Option A. -> Information about a route should not be sent back in the direction from which the original update came.
Question 4. 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
  1.    172.16.30.0
  2.    192.168.30.0
  3.    10.0.0.0
  4.    All of them will be placed in the neighbor routing table
 Discuss Question
Answer: Option C. -> 10.0.0.0
Question 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.
  1.    1, 3 and 5
  2.    3 and 4
  3.    2 and 5
  4.    None of the above
 Discuss Question
Answer: Option C. -> 2 and 5
Question 6. What command is used to stop RIP routing updates from exiting out an interface but still allow the interface to receive RIP route updates?
  1.    Router (config-if) # no routing
  2.    Router (config-if) # passive-interface
  3.    Router (config-router) # passive-interface s0
  4.    Router (config-router) # no routing updates
 Discuss Question
Answer: Option C. -> Router (config-router) # passive-interface s0
Question 7. 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?
  1.    The updated information will be added to the existing routing table.
  2.    The update will be ignored and no further action will occur.
  3.    The updated information will replace the existing routing table entry.
  4.    The existing routing table entry will be deleted from the routing table and all routers will exchange routing updates to reach convergence.
  5.    They will all load-balance.
 Discuss Question
Answer: Option B. -> The update will be ignored and no further action will occur.
Question 8. 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?
  1.    The route is 16 hops away.
  2.    The route has a delay of 16 microseconds.
  3.    The route is inaccessible.
  4.    The route is queued at 16 messages a second.
  5.    They will all load-balance.
 Discuss Question
Answer: Option C. -> The route is inaccessible.
Question 9. 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
  1.    The packet will be discarded.
  2.    The packet will be routed out the S0/0 interface.
  3.    The router will broadcast looking for the destination.
  4.    The packet will be routed out the Fa0/0 interface.
  5.    They will all load-balance.
 Discuss Question
Answer: Option A. -> The packet will be discarded.
Question 10. 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?
  1.    Any available route
  2.    RIP route
  3.    Static route
  4.    IGRP route
  5.    They will all load-balance.
 Discuss Question
Answer: Option C. -> Static route

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