Nokia Nokia Certifications 4A0-104 Questions & Answers

• Question 121:

  On the Nokia 7750 SR, which one of the following steps is NOT required when enabling an MP-BGP session between PE routers in a VPRN?

  A. Configuring an autonomous system number in the global context.

  B. Configuring a BGP group and peer parameters.

  C. Configuring a VPN-IPv4 address family.

  D. Configuring an export policy to advertise routes between PEs.

  Correct Answer: D

• Question 122:

  Which of the following about route distinguishers on the Nokia 7750 SR is TRUE?

  A. Route distinguishers are used to ensure that VPRN IP prefixes are globally unique.

  B. Route distinguishers are appended to IPv4 prefixes to form IPv6 prefixes.

  C. Route distinguishers are used to determine which routes a VPRN should import.

  D. CE routes use a route distinguisher to indicate which VPRN they are associated to.

  Correct Answer: A

• Question 123:

  Which of the following about the VPRN data plane is TRUE?

  A. A packet receives a service label and a transport label at the ingress PE.

  B. A packet has its service label swapped at each P router.

  C. The egress PE pops the service label, and the transport label is forwarded.

  D. The service label is popped by the remote CE.

  Correct Answer: A

• Question 124:

  On a Nokia 7750 SR, the OAM command 'svc-ping' can be used with options `local-sdp' and 'remote-sdp'. Which of the following is TRUE?

  A. `local-sdp' and 'remote-sdp' indicate that all services using these SDPs are pinged.

  B. `local-sdp' and `remote-sdp' indicate that pings are initiated from both local and remote routers.

  C. Both `local-sdp' and 'remote-sdp' take parameters to specify which SDPs are used for the test.

  D. `local-sdp' indicates that the ping is sent in-band, and `remote-sdp' indicates the return ping is in-band.

  Correct Answer: D

• Question 125:

  What is the minimum Ethernet physical network MTU required for a Layer 2 service on an MPLS encapsulated SDP with a service MTU of 1500?

  A. 1500

  B. 1508

  C. 1514

  D. 1522

  Correct Answer: D

• Question 126:

  Which of the following about the Nokia 7750 SR's sdp-ping utility is FALSE?

  A. It tests uni-directional or round-trip in-band connectivity.

  B. It tests the reachability of hosts that are using an SDP.

  C. It tests the reachability of the far-end IP address of an SDP through its tunnel.

  D. It can be used by specifying only an SDP ID.

  Correct Answer: B

• Question 127:

  Which one of the following items CANNOT be used as a mirror source on a Nokia 7750 SR?

  A. IP filter

  B. MAC filter

  C. Egress label

  D. Ingress label

  Correct Answer: C

• Question 128:

  Click the exhibit.

  

  E-pipe 100 is using an SDP with an LSP that uses the path shown (PE1-PE2-PE3-PE4). Based on the OAM command output, which of the following is FALSE?

  A. The E-pipe can support a maximum MTU size of 1578.

  B. The ports of the link PE2-PE3 have an MTU of 1578.

  C. An svc-ping of the E-pipe will succeed.

  D. If the step size was 2, the maximum response size would be the same.

  Correct Answer: A

• Question 129:

  Click the exhibit.

  

  Which OAM tool produced this output?

  A. vprn-ping

  B. sdp-ping

  C. traceroute

  D. lsp-trace

  Correct Answer: D

• Question 130:

  Click the exhibit.

  

  PE1 and PE2 are Nokia 7750 SRs. What needs to be added to PE1's configuration to mirror traffic between PE2 and the customer site?

  A. A "remote-source" needs to be added to the mirror destination on PE1.

  B. A mirror source needs to be added to PE1 with a "remote-source".

  C. This is not possible since the protocol analyzer is located at the Central Office. It needs to be at the customer site.

  D. A mirror source with SAP 1/1/2 needs to be added on PE1.

  Correct Answer: A