Free 4A0-101 Exam Braindumps
4A0-101 Alcatel-Lucent Interior Routing Protocols and High Availability Questions 31–32 (page: 17)

Updated On: 9-Feb-2026

Which of the following best describes how IS-IS routers exchange updates on an Ethernet interface?

  1. IS-IS routers exchange updates by sending UDP packets to a multicast address.
  2. IS-IS routers exchange updates using IP multicast packets.
  3. IS-IS routers exchange updates using Ethernet multicast packets.
  4. IS-IS routers exchange updates by sending packets to the subnet broadcast address.

Answer(s): C



Which of the following OSPF area types are supported by the Alcatel ucent 7750 SR? Choose two answers.

  1. Not so stubby areas
  2. Level1 area WC
  3. Stub areas
  4. Partially stubby areas
  5. Level 2 areas

Answer(s): A,C



What acts as the tie breaker on an Alcatel-Lucent 7750 SR if the priorities are the same when IS-IS is electing a DIS?

  1. The system ID
  2. The loopback address
  3. The sequence number of the hello packet
  4. The device that first initiated communication becomes the DIS

Answer(s): A



Which of the following statements regarding OSPF routing updates on a point-to-point link is true?

  1. On a point-to-point link, there is no need for a DR and BDR election; all routing updates are sent to 224.0.0.5.
  2. On a point-to-point link, a DR and BDR are elected. The DR sends link-state advertisements describing the network.
  3. On a point-to-point link, a DR and BDR are elected. To ensure resiliency, both the DR and BDR send link-state advertisements describing the network.
  4. On a point-to-point link, there is no need for a DR and BDR election. All routing updates are sent to the unicast address of the neighbor's interface.

Answer(s): A



If OSPF is used in a multi-area OSPF network, which of the following statements regarding route summarization is true?

  1. Manual route summarization can only be done on autonomous system border routers.
  2. Manual route summarization must be done on all the backbone routers to be effective. Manual route summarization is optional on the routers in non-backbone areas.
  3. Manual route summarization is done on the ABRs. By default, automatic summarization is done; however, it may not be optimal for all networks.
  4. Manual route summarization is done on the ABRs. By default, no route summarization is done and all routes are advertised to all areas.

Answer(s): D



Viewing page 17 of 37
Viewing questions 81 - 85 out of 315 questions


Post your Comments and Discuss Alcatel-Lucent 4A0-101 exam prep with other Community members:

AI Tutor AI Tutor 👋 I’m here to help!