Nokia Nokia Certifications 4A0-C01 Questions & Answers

• Question 741:

  In an IS-IS network, why does the DIS create a pseudo-node?

  A. It represents a group of routers on the same non-broadcast network.

  B. It represents the topological database of the backbone network in an IS-IS network.

  C. It represents a broadcast sub-network.

  D. It represents the complete topology of an IS-IS area.

  Correct Answer: C

• Question 742:

  Click on the exhibit.

  

  Given the output shown, which router is the ASBR in this network?

  A. 10.10.10.2

  B. 10.10.10.3

  C. 10.10.10.4

  D. 10.10.10.6

  E. There is no ASBR configured in the network.

  Correct Answer: E

• Question 743:

  Which of the following best describes constraint-based routing?

  A. A mechanism that implements opaque LSAs.

  B. A mechanism that computes routes based on defined user requirements.

  C. A mechanism that allows the IGP shortest path to be used.

  D. A mechanism that allows RSVP or LDP signaling to use a route other than the IGP best route to establish a LSP.

  Correct Answer: B

• Question 744:

  Which command can be used to verify the LDP settings for label distribution and retention?

  A. show router ldp default

  B. show router ldp parameters

  C. show router ldp settings

  D. show router mpls settings

  E. show router mpls label-options

  Correct Answer: B

• Question 745:

  Which of the following statements regarding the MPLS SWAP label operation is true?

  A. The inner label will be exchanged with the MPLS outer label.

  B. The inner label will be exchanged for a new label.

  C. The outer label will be exchanged for a new label.

  D. All labels will be exchanged for one new label.

  E. All labels will be exchanged for an equal number of new labels.

  Correct Answer: C

• Question 746:

  What is the goal of MPLS Traffic Engineering?

  A. To establish additional LSPs across the network

  B. To allow ECMP to occur across an MPLS network

  C. To enable the implementation of services

  D. To utilize paths other than the lowest cost path

  Correct Answer: D

• Question 747:

  Click on the exhibit.

  

  What does the field "2001:DB8:111::/64" represent?

  A. The router's system address.

  B. The next-hop prefix.

  C. The interface's global prefix.

  D. The next-hop system address.

  Correct Answer: C

• Question 748:

  Click on the exhibit.

  

  In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. Assuming that there are no stub or NSSA networks, which of the following regarding LSAs is TRUE?

  A. Only router R1 will generate Type 4 LSAs.

  B. Only router R3 will generate Type 4 LSAs.

  C. Routers R3 and R6 will generate Type 4 LSAs.

  D. Routers R1.R3 and R6 will generate Type 4 LSAs.

  Correct Answer: C

• Question 749:

  Which of the following is FALSE about the databases used by a link-state routing protocol in a single area routing domain?

  A. The link-state database has local topology information from all the routers.

  B. The adjacency database contains all the links between all the routers.

  C. The forwarding database contains the next hop for all known prefixes.

  D. The link-state database is the same for all routers.

  Correct Answer: B

• Question 750:

  In MPLS, how is the label range 0 ?15 used?

  A. Static LSPs

  B. Reserved use

  C. Vendor proprietary use

  D. Management LSPs

  E. Dynamic LSPs

  Correct Answer: B