Nokia Nokia Certifications 4A0-C04 Questions & Answers

• Question 181:

  If the Nokia 7750 SR is rebooted after an "admin save'' has been performed, which of the following about mirror services is TRUE?

  A. Only the mirror source must be re-configured.

  B. Only the mirror destination must be re-configured.

  C. Both the mirror destination and mirror source must be re-configured.

  D. Neither the mirror destination nor the mirror source must be re-configured.

  Correct Answer: A

• Question 182:

  Click the exhibit button.

  

  What triggers convergence of the routing protocol when the link between switch 1 and switch 2 goes down?

  A. Convergence is triggered when the adjacency between routers R1 and R2 drops as a result of Hello timeouts. At this point, both routers R1 and R2 re-compute their link state database and send updates to their adjacent routers. Once the process is complete for all routers, the networks have converged.

  B. Convergence is triggered when the physical interfaces between routers R1 and R2 go down. At this point, both routers R1 and R2 re-compute their link state database and send updates to their adjacent routers. Once the process is complete for all routers, the networks have converged.

  C. Convergence will not be triggered because switches cannot run routing protocols between them.

  D. Convergence is triggered when the switches notify the routers about the link state information. At this point, both routers R1 and R2 re-compute their link state database and send updates to their adjacent routers. Once the process is complete for all routers, the networks have converged

  E. Convergence is triggered when an LSA is sent from router R1 to router R2 to indicate that the link is down. At this point, both routers R1 and R2 re-compute their link state database and send updates to their adjacent routers. Once the process is complete for all routers, the networks have converged.

  Correct Answer: A

• Question 183:

  Which of the following commands would correctly configure the confederation AS number as 65200 with a member AS of 65202?

  A. config>router- confederation 65200 members 65202

  B. config>router>bgp= confederation 65200 members 65202

  C. config>router= confederation 65202 members 65200

  D. config>router>bgp= confederation 65202 members 65200

  Correct Answer: A

• Question 184:

  Which of the following about the Link LDP discovery process on the Nokia 7750 SR is FALSE?

  A. LDP Hello messages are sent over TCP.

  B. LDP Hello messages are sent to the All Routers address 224.0.0.2.

  C. LDP Hello messages are exchanged between all directly connected LDP enabled routers.

  D. Each LDP enabled router must have its own unique system IP address.

  Correct Answer: A

• Question 185:

  Which regular expression will match the AS Path of a route originating in remote AS 65100?

  A. ".+ 65100"

  B. "65100.+"

  C. ".* 65100.*"

  D. "65100"

  Correct Answer: A

• Question 186:

  What command will show the OSPF neighbors, and their status on the Nokia 7750 SR?

  A. Show ospf neighbors

  B. Show router ospf neighbors

  C. Show router ospf adjacency

  D. Show ospf adjacency

  Correct Answer: B

• Question 187:

  Click the exhibit.

  

  Assume all router-IDs are properly configured, and IPv6 link-local addresses are used to establish all eBGP sessions. Given the following iBGP configuration on router A, what is the Next Hop for prefix 2001:DB8:A:401::1/128 on router B?

  

  A. The IPv6 link-local address of the router D interface towards router A.

  B. The IPv6 link-local address of the router A interface towards router D.

  C. The IPv6 global address of router A.

  D. The IPv6 global address of router D.

  Correct Answer: C

• Question 188:

  Router R1, in AS 65540, has the export policy shown below. It advertises an aggregate route to eBGP peer router R2 in 65550. What is the AS Path of the aggregate route received by router R2?

  

  A. 65540

  B. 65540 1

  C. 65540 65540

  D. 65550 65540

  Correct Answer: C

• Question 189:

  Which of the following is NOT a BGP message type?

  A. Route-Refresh

  B. OpenSent

  C. Notification

  D. Update

  E. Keepalive

  Correct Answer: B

• Question 190:

  Which of the following about an ERO in an RSVP PATH message is FALSE?

  A. ERO is used by downstream routers to determine the next-hop for the LSP.

  B. ERO contains label information used to signal an LSP path.

  C. ERO is not always present in the PATH message.

  D. Each downstream router updates information inside the ERO.

  Correct Answer: B