Module 7 – Exam 1. What protocol and port number does BGP use? IP, using port 88 TCP, using port 179 UDP, using port 521 None of these options are correct IP, using port 89 Question 1 of 11 2. Which of the following would be a valid reason for a BGP adjacency to fail to establish? Select the best answer. The peer relationship is between a loopback and physical interface The routers are running different Cisco IOS software versions The peers reside in different autonomous systems A dynamic routing protocol has not been enabled on either of the routers None of these options are applicable The peers are not directly connected Question 2 of 11 3. You are troubleshooting a BGP route advertisement issue to an established eBGP peer. Which of the following would NOT be useful in troubleshooting such issues? The show ip bgp neighbors command The show ip bgp command The clear ip bgp command The show ip bgp update-group command The show ip route command Question 3 of 11 4. You are troubleshooting a BGP route installation issue. Which of the following would be a possible cause for a BGP speaker that has a prefix in the BGP RIB to not install the same prefix into the routing table? Select the best answer. The origin code is EGP; EGP is no longer supported in Cisco IOS software The route is received from an iBGP peer The route is received from an eBGP peer AS_PATH Filtering The NEXT_HOP is inaccessible Distribute list filtering Question 4 of 11 5. You have issued the nework 10.0.0.0 command on a local BGP speaker. Which of the following subnets will be injected into the BGP RIB and advertised to peers? Select the best answer. 10.0.0.0/28 10.0.0.0/8 10.0.0.0/16 10.0.0.0/24 None of these networks will be injected into the BGP RIB Question 5 of 11 6. You are troubleshooting a BGP redistribution issue. The local router has been configured as follows: router bgp 1 redistribute ospf 1 Which of the following routes will be redistributed into BGP given this configuration? Select the best answer. None of these routes will be redistributed O N2 10.3.0.3/32 [110/65] via 172.16.0.2, 00:51:12, Serial0/0 All of these routes will be redistributed O IA 10.3.0.3/32 [110/65] via 172.16.0.2, 00:51:12, Serial0/0 O N1 10.3.0.3/32 [110/65] via 172.16.0.2, 00:51:12, Serial0/0 O E2 10.3.0.3/32 [110/65] via 172.16.0.2, 00:51:12, Serial0/0 Question 6 of 11 7. By default, if the prefix is learned from an iBGP peer, the edge router will remove the MED value before advertising the prefix to an eBGP peer True False Question 7 of 11 8. Consider the followig output: *Mar 12 17:06:27.235: %TCP-6-BADAUTH: No MD5 digest from 1.0.0.1(179) to 1.0.0.3(46132) *Mar 12 17:06:27.239: %TCP-6-BADAUTH: No MD5 digest from 1.0.0.1(179) to 1.0.0.3(46132) Given the output above, it can be determined that authentication is configured on both peers, but the passwords are mismatched False True Question 8 of 11 9. Your co-worker has just completed configuring summarization on the local BGP speaker but notices that the router is still advertising the more specific prefixes as well. When they ask you why this is, your first response should be to tell that that this is normal with BGP unless specific prefixes are explictly suppressed. True False Question 9 of 11 10. Click on the Exhibit. You are troubleshooting an route advertisement issue based on this topology. What are possible reasons for R3 not receiving updates about the R2 networks? Select two answers. R2 resides in AS 2, R1 and R3 reside in AS 100 The remaining options are all invalid R1, R2, and R3 reside in AS 100 The remaining options are all valid R1 and R2 reside in AS 100, R3 resides in AS 3 R1, R2, and R3 reside in AS 1, AS 2, and AS 3, respectively Question 10 of 11 11. Click on the Exhibit. Which of the following commands would be required to establish an adjacency between the routers? Select two answers. The update-source command The ibgp-multihop command The maximum-paths ibgp command The maximum-paths command The neighbor next-hop-self command The ebgp-multihop command Question 11 of 11 Loading…
