Nokia Nokia Certifications 4A0-C04 Questions & Answers

• Question 211:

  What is the purpose of configuring a triggered-policy on an Nokia 7750 SR?

  A. Policy changes are delayed until the peer router with the affected routes reboots.

  B. Policy changes are delayed until route updates for affected BGP routes are received from peers.

  C. Policy changes are delayed until BGP sessions are cleared or BGP is reset.

  D. Policy changes are delayed until the router reboots.

  Correct Answer: C

• Question 212:

  Which of the following about LDP sessions is TRUE?

  A. Frame mode requires multiple sessions between peers.

  B. The lower transport address initiates the session.

  C. Established LDP sessions run over a TCP connection.

  D. An LDP session is established immediately after Init messages are exchanged between peers.

  Correct Answer: C

• Question 213:

  What is the default inbound metric for RIP on the Nokia 7750 SR?

  A. Whatever the advertised metric happens to be.

  B. A value of 1.

  C. This must be administratively set as there is no default value.

  D. A value of 15.

  Correct Answer: B

• Question 214:

  Which of the following regarding route reflectors is TRUE?

  A. Only the route reflector is configured with a cluster id.

  B. There can only be one route reflector in a cluster.

  C. Clients should have iBGP sessions with each other to maintain the mesh.

  D. There can only be one level of route reflectors in the topology.

  Correct Answer: A

• Question 215:

  Which of the following is a characteristic of a VPLS?

  A. All SAPs of a VPLS belong to the same broadcast domain.

  B. When a new site is added, all the existing sites need to be shutdown and re-provisioned.

  C. An additional T-LDP session is required between PEs for each additional VPLS that is provisioned.

  D. Multiple VPLSes on the same router share a single MAC FDB.

  Correct Answer: A

• Question 216:

  Which of the following best describes downstream on demand label distribution?

  A. An LSR answers requests for label mappings immediately, without waiting for a label mapping from the next-hop.

  B. An LSR advertises label mappings to all peers for which it might be a next-hop for a given FEC.

  C. An LSR distributes a label mapping for a FEC when it has been requested to do so.

  D. An LSR propagates a label mapping downstream for a FEC. only if it has a label mapping for the FEC's next-hop.

  Correct Answer: C

• Question 217:

  A network consists of four PE routers. A customer requires a VPLS and has sites connected to each PE. The VPLS is fully meshed using IP/MPLS. How many SDPs must be configured on each PE?

  A. 3

  B. 4

  C. 6

  D. 8

  Correct Answer: A

• Question 218:

  Click the exhibit.

  

  Router R1 is a route reflector with clients R2, R5 and R6. Prefixes advertised by router R5 have a local preference of 200. Router R3 advertises the prefix 192.168.1.0/27 to routers R5 and R6.

  Assuming that none of the routers in AS 65540 is configured with "advertise-external", what is the expected output of "show router bgp routes on router R1?

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: C

• Question 219:

  Which of the following commands can be used to display the number of SPF computations that have been performed on a router?

  A. show router ospf area

  B. show router ospf neighbor

  C. show router ospf interface

  D. show router ospf status

  Correct Answer: A

• Question 220:

  Select the answer below that correctly lists the 5 different OSPF packet types.

  A. Hello, Link State Update, Link State Packet, Link State Acknowledgement, Database Descriptor

  B. Link State Update, Link State Refresh, Link State Acknowledgement, Database Descriptor, Notification

  C. Hello, Link State Refresh, Link State Update, Link State Acknowledgement, Link State Authentication

  D. Hello, Link State Update, Link State Request, Link State Acknowledgement, Database Descriptor

  Correct Answer: D