Alcatel-Lucent Alcatel-Lucent Certifications 4A0-101 Questions & Answers

• Question 1:

  Which of the following is a characteristic of OSPFv2 that was NOT preserved in OSPFv3?

  A. LSA flooding mechanism.

  B. Totally stubby areas.

  C. MD5 authentication.

  D. DR and BDR election.

  Correct Answer: C

• Question 2:

  Which of the following best describes an OSPF Type 3 LSA?

  A. A Type 3 LSA is generated by an ASBR only when route summarization is configured.

  B. A Type 3 LSA is generated by an ABR only when route summarization is configured.

  C. A Type 3 LSA is generated by an ASBR to describe routes to routers outside the area.

  D. A Type 3 LSA is generated by an ABR to describe routes to routers outside the area.

  Correct Answer: D

• Question 3:

  Which OSPFv3 LSA type is generated by an ABR to advertise prefixes from one area to another?

  A. AS External

  B. Intra-Area Prefix

  C. Inter-Area Router

  D. Inter-Area Prefix

  Correct Answer: A

• Question 4:

  Which of the following best describes the forwarding of a IPv6 packet that has a destination anycast address?

  A. It is sent to all nodes on the local link.

  B. It is sent to all nodes on the local network.

  C. It is sent to all nodes that have joined the anycast group.

  D. It is sent to the nearest node that is assigned the anycast address

  E. It is sent to all nodes that are assigned the anycast address.

  Correct Answer: D

• Question 5:

  Click on the exhibit.

  

  Assume that OSPFv3 is properly configured on all routers and that router R4 advertises its system prefix into Area 0.

  Which of the following best describes how router R5 learns router R4's IPv6 system prefix?

  A. With a Router LSA originated by router R1.

  B. With a Router LSA originated by router R5.

  C. With a Router LSA originated by router R4.

  D. With an Inter-Area Prefix LSA originated by router R1.

  E. With an Inter-Area Prefix LSA originated by router R5.

  F. With an Inter-Area Prefix LSA originated by router R4.

  Correct Answer: D

• Question 6:

  Click on the exhibit.

  

  Before the link failure, all routers have operational OSPF adjacencies between them and there is a BFD session between routers R1 and R3.

  After the link failure, which of the following affects the IGP convergence time?

  A. The convergence time depends on the value of the OSPF hello timers on routers R1 andR3.

  B. The convergence time depends on the value of the OSPF hello timers and Dead interval on routers R1 and R3.

  C. The convergence time depends on the value of the BFD interval and multiplier settings on routers R1 andR3.

  D. The convergence time depends on the time taken by the switches to detect the link failure.

  Correct Answer: C

• Question 7:

  Which of the following best describes the features of Classless Inter-Domain Routing (CIDR)?

  A. Automatic summarization and the use of IP addresses that use any number of bits for the network portion of the address.

  B. Manual summarization and the use of IP addresses that use any number of bits for the network portion of the address.

  C. Automatic summarization and the use of IP addresses that use a fixed number of bits for the network portion of the address.

  D. Manual summarization and the use of IP addresses that use a fixed number of bits for the network portion of the address.

  Correct Answer: B

• Question 8:

  How is the DR selected when an OSPF router is added to a broadcast network?

  A. The current DR is selected, if there is one. Otherwise, the router with the lowest priority is the DR. If priorities are the same, the DR is chosen based on the lowest RID.

  B. The current DR is selected, if there is one. Otherwise, the router with the highest priority is the DR. If priorities are the same, the DR is chosen based on the highest RID.

  C. The router with the lowest priority is the DR. If priorities are the same, the current DR is selected. Otherwise the DR is chosen based on the lowest RID.

  D. The router with the highest priority is the DR. If priorities are the same, the current DR is selected. Otherwise the DR is chosen based on the highest RID.

  Correct Answer: B

• Question 9:

  An Alcatel-Lucent 7750 SR is configured with an export policy to redistribute a loopback prefix into

  OSPFv3.

  What type of LSA advertises the prefix to the other OSPFv3 routers in the same area?

  A. Router LSA

  B. AS External LSA

  C. Intra-Area Prefix LSA

  D. Inter-Area Prefix LSA

  E. Network LSA

  Correct Answer: B

• Question 10:

  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