Nokia Nokia Certifications 4A0-101 Questions & Answers

• Question 71:

  Which type of LSA packets describe external routes originated within an NSSA area, and to what type are they converted to at the ABR?

  A. They are Type 7 within the area and are not modified at the ABR.

  B. They are Type 5 within the area and converted to Type 3 at the ABR.

  C. They are Type 5 within the area and are not modified at the ABR.

  D. They are Type 7 within the area and converted to Type 5 at the ABR.

  Correct Answer: D

• Question 72:

  Click on the exhibit.

  

  Router R2 uses IS-IS to advertise the network 192.168.3.0/24 to R1. How can router R1 discard the route?

  A. Use an import policy and a prefix list on router R2.

  B. Use an export policy and a prefix list on router R1.

  C. Use an import policy and a prefix list on router R1.

  D. Router R1 cannot discard the route because IS-IS does not support import policies.

  Correct Answer: D

• Question 73:

  Click on the exhibit.

  

  Given the output, which of the following is the most accurate statement about the network?

  A. There are five broadcast links and there are no point-to-point links.

  B. There are five broadcast links and there are five point-to-point links.

  C. There are five broadcast links. It's not possible to say how many point-to-point links there are.

  D. It's not possible to say how many broadcast or point-to-point links there are.

  Correct Answer: C

• Question 74:

  Which type of OSPF LSA lists the routers attached to a broadcast network?

  A. Type 1

  B. Type 2

  C. Type 3

  D. Type 4

  E. Type 5

  Correct Answer: B

• Question 75:

  Which of the following about Type 4 LSAs is FALSE?

  A. A Type 4 LSA is not generated in a single area AS.

  B. A Type 4 LSA is generated by the ABRs of the area that contains the ASBR.

  C. A Type 4 LSA advertises the external networks connected to the ASBR.

  D. A Type 4 LSA is not flooded in the area that contains the ASBR.

  Correct Answer: C

• Question 76:

  Which of the following best describes a unicast IPv6 address?

  A. Fixed total of 128 bits, where 64 bits are used for routing and 64 bits are used as an interface identifier.

  B. Fixed total of 128 bits, where 32 bits are used for the global prefix, 32 bits are used for the subnet and 64 bits are used as an interface identifier.

  C. Variable total length, where at least 48 bits are used for the global prefix, 48 bits are used for the subnet and 64 bits are used as an interface identifier.

  D. Variable total length, where at least 64 bits are used for routing and 64 bits are used as an interface identifier

  Correct Answer: A

• Question 77:

  Which OSPFv3 LSA is similar to the OSPFv2 Type 5 LSA?

  A. AS External

  B. Inter-Area Prefix

  C. Inter-Area Router

  D. Intra-Area Prefix

  Correct Answer: A

• Question 78:

  Which of the following is a type of authentication that is supported by OSPF on the Alcatel- Lucent 7750 SR?

  A. Challenge handshake authentication protocol (CHAP)

  B. Two factor authentication

  C. MD5 authentication

  D. Extensible authentication protocol (EAP)

  Correct Answer: C

• Question 79:

  Which of the following about 6over4 is FALSE?

  A. The CE routers run only IPv6.

  B. The PE routers must run IPv4 and IPv6.

  C. The P routers must run IPv4 and IPv6.

  D. IPv6 routes on the PE routers may have an IPv4 address as the next hop.

  Correct Answer: C

• Question 80:

  An Alcatel - Lucent 7750 SR receives a route from an IS-IS LSP with internal reachability, and receives the same route from an OSPF Type 5 LSA. If all protocol preferences are default, which route will be installed in the route table?

  A. The route learned from IS-IS will be installed.

  B. The route learned from OSPF will be installed.

  C. Both routes will be installed.

  D. There is not enough information to answer the question

  Correct Answer: A