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

• Question 41:

  Which of the following about IS-IS is FALSE?

  A. IS-IS uses the concept of Level 1 and Level 2 routers to implement hierarchy.

  B. An IS-IS router belongs to one or more areas.

  C. All Level 2 routers belong to the same area.

  D. A Level 1 router forwards traffic to other areas through the nearest Level 1/2 router.

  Correct Answer: C

• Question 42:

  Click on the exhibit.

  

  What type of OSPFv3 LSA is shown?

  A. Router LSA

  B. Network LSA

  C. Intra-Area Prefix LSA

  D. Link LSA

  Correct Answer: C

• Question 43:

  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 44:

  Which of the following is NOT a field in the IPv6 header?

  A. Next Header

  B. Traffic Class

  C. Hop Limit

  D. Fragment Offset

  E. Flow Label

  Correct Answer: D

• Question 45:

  Which of the following regarding the IS-IS PSNP is FALSE?

  A. PSNPs are used on point-to-point links to acknowledge the receipt of an LSP.

  B. There are three types of PSNPs: Level 1, Level 2, and Level 1/2.

  C. A PSNP lists some of the LSPs in the router's database.

  D. PSNPs are used by an IS-IS router to request LSP information from a neighboring router.

  Correct Answer: B

• Question 46:

  Click on the exhibit.

  

  OSPF is operational on all links in the network diagram, all links are the same cost, and all routers are configured with an ECMP value of 4. Router R4 advertises the prefix 192.168.3.0/24 into OSPF.

  How many entries for prefix 192.168.3.0/24 will be in router R5's routing table?

  A. 0

  B. 1

  C. 2

  D. 3

  E. 4

  Correct Answer: C

• Question 47:

  Click on the exhibit.

  

  What type of OSPFv3 LSA is shown?

  A. Router LSA

  B. Network LSA

  C. Inter-Area Prefix LSA

  D. Link LSA

  Correct Answer: B

• Question 48:

  Click on the exhibit.

  

  All ports in the network are operationally up and have a speed of 1Gbps. Which of the following is TRUE?

  A. Data traffic from network 192.168.1.0/24 to 192.168.3.0/24 will be forwarded through router R2.

  B. Data traffic from network 192.168 3.0/24 to 192.168.1.0/24 will be forwarded from router R3 directly to router R1.

  C. The system interface of routers R1 and R3 must be included into OSPF for traffic to flow between the 192.168.1.0/24 and 192.168.3.0/24 networks.

  D. The OSPF adjacency between router R1 and router R3 is operationally up.

  Correct Answer: D

• Question 49:

  Click on the exhibit.

  

  A static route has been configured on router R1 to reach the PC at 139.120.121.2. What else is required to make the ping succeed?

  A. A default route on router R2 to router R1.

  B. A default route on the PC to router R2.

  C. A static route on the PC to router R2 and a static route on router R2 to the PC.

  D. A default route on router R1 to router R2.

  Correct Answer: B

• Question 50:

  In an OSPF network, which of the following is NOT a result of manual summarization on an ABR?

  A. It can reduce the topological database size.

  B. It can reduce the size of the route table.

  C. It can reduce the number of Summary LSAs.

  D. It can reduce the number of Router LSAs.

  Correct Answer: D