Explaining route poisoning


Question 1) What command is used to stop RIP routing updates from exiting out an interface but still permit 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

Question 2) Two connected routers are configured with RIP routing. What would be the result when the router receives a routing update which contains a higher-cost path to the network already in its routing table?

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

Question 3) You type debug ip rip on your router console and see that 172.16.10.0 is being advertised to you with the 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.

Question 4) 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 would 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 would be discarded.
B. The packet would be routed out the S0/0 interface.
C. The router would broadcast looking for the destination.
D. The packet would be routed out the Fa0/0 interface.

Question 5) If your routing table has the static, a RIP, and an IGRP route to the same network, which route would be used to route packets by default?

A. Any available route
B. RIP route
C. Static route
D. IGRP route
E. They will all load-balance.

Question 6) What is route poisoning?

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

Question 7) Which of the following is true regarding RIPv2?

A. It has lower administrative distance than RIPv1.
B. It converges faster than RIPv1.
C. It has the same timers as RIPv1.
D. It is harder to configure than RIPv1.

Question 8) Network administrator views the output from the show ip route command. A network which is advertised by both RIP and IGRP appears in routing table flagged as the 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 lower administrative distance.
C. RIP has higher metric value for that route.
D. The IGRP route has fewer hops.

Solution Preview :

Prepared by a verified Expert
Computer Networking: Explaining route poisoning
Reference No:- TGS05150

Now Priced at $40 (50% Discount)

Recommended (98%)

Rated (4.3/5)