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

• Question 261:

  Which type of IS-IS router is summarization most likely to be configured on?

  A. L1 routers

  B. L2 routers

  C. L1/L2 routers

  D. L1 and L2 routers

  Correct Answer: C

• Question 262:

  How are IS-IS LSPs sent on point-to-point links?

  A. They are sent using multicast MAC addresses 0180:0200:0014.

  B. They are sent using multicast MAC addresses 0180:c200:0015.

  C. They are sent using a unicast address.

  D. None of the above.

  Correct Answer: C

• Question 263:

  Two IS-IS L1/L2 routers are in the same area on the same Ethernet segment. How many adjacencies will be formed between them?

  A. None

  B. 1

  C. 2

  D. 3

  E. 4

  Correct Answer: C

• Question 264:

  In IS-IS, which of the following statements regarding an L1/L2 router is false?

  A. An L1/L2 router can have neighbors in different areas.

  B. An L1/L2 router calculates separate SPF trees for the Level 1 and Level 2 topology.

  C. An L1/L2 router advertises its L2 routes to its L1 neighbors.

  D. An L1/L2 router sets the ATT bit in L1 LSPs to identify itself as an L1 router.

  Correct Answer: D

• Question 265:

  When IS-IS elects a DIS, what is used as the tie breaker on an Alcatel-Lucent 7750 SR, if the priorities are the same?

  A. The system ID.

  B. The loopback address.

  C. The sequence number of the Hello packet.

  D. The device that first initiated communication becomes the DIS

  E. The highest interface MAC address.

  Correct Answer: E

• Question 266:

  Click the exhibit button.

  

  Given the diagram below, what path will traffic follow from router R6 to router R3, and from router R3 to router R6, if IS-IS is the routing protocol? The numbers beside the links are the metrics for that link.

  A. Router R6 to router R3 will follow (R6-R5-R2-R3). Router R3 to router R6 will follow (R3- R2-R5-R6).

  B. Router R6 to router R3 will follow (R6-R5-R2-R3). Router R3 to router R6 will follow (R3- R4-R2-R5R6).

  C. Router R6 to router R3 will follow (R6-R5-R2-R3). Router R3 to router R6 will follow (R3- R4-R7-R5R6).

  D. Router R6 to router R3 will follow (R6-R5-R7-R4-R3). Router R3 to router R6 will follow (R3-R4-R7-R5R6).

  Correct Answer: C

• Question 267:

  Click the exhibit button.

  

  What is the state of adjacency?

  A. Initializing

  B. Up

  C. Down

  D. 2-Way

  Correct Answer: C

• Question 268:

  At what point is the LSP SRM flag cleared when an LSP is sent on an IS-IS point-to-point link? Choose two answers.

  A. As soon as the LSP is transmitted.

  B. When an acknowledgment is received in the form of PSNP.

  C. When an older LSP is received.

  D. When a newer or same aged LSP is received.

  E. Only when a newer LSP is received

  Correct Answer: BD

• Question 269:

  Which of the following types of network topologies are supported by IS-IS on the Alcatel-Lucent 7750 SR? Choose two answers.

  A. Non-broadcast

  B. Broadcast

  C. Point-to-multipoint

  D. Point-to-point

  Correct Answer: BD

• Question 270:

  Which of the following statements regarding IS-IS Hello packets are true? Choose two answers.

  A. Different types of Hello packets are exchanged on point-to-point networks than on broadcast networks.

  B. L1/L2 Hello packets are exchanged on broadcast links.

  C. Different L1 and L2 Hello packets are exchanged on broadcast links.

  D. By default, Hello packets are sent every 5 seconds, and the timeout to declare a neighbor down is 15 seconds.

  Correct Answer: AC