Free 4A0-105 Exam Braindumps
4A0-105 Virtual Private LAN Services Questions 91–95 (page: 20)

Updated On: 9-Feb-2026

What type of SDP cannot be configured in an l-VPLS?

  1. Mesh-sdp
  2. Spoke-sdp
  3. MPLS
  4. GRE

Answer(s): A



Which of the following describes the setting of the l-SID on the Alcatel-Lucent 7750 SR?

  1. The I-SID is set to 0 by default and is only used for interop purposes. The receiving PE uses the service label to determine the I-VPLS.
  2. There is no default value. The I-SID must always be explicitly configured
  3. The I-SID is set to the service-id, unless the service-id is larger than a 24 bit value. In this case the I-SID must be explicitly configured.
  4. The I-SID is always set to the service-id by default.

Answer(s): C



What option is available when using PBB to reduce the amount of required VPLS services?

  1. The Alcatel-Lucent 7750 SR supports 1:1 mapping of I-VPLS services to B-VPLS services.
  2. The Alcatel-Lucent 7750 SR supports 1:1 andM:1 mapping of l-VPLS services to B- VPLS services.
  3. The Alcatel-Lucent 7750 SR supports the mapping of multiple, standard VPLS services to B-VPLS services.
  4. The Alcatel-Lucent 7750 SR supports the mapping of multiple, standard VPLS services to l-VPLS services.

Answer(s): B



Which of the following is NOT a feature of the IEEE 802.3ah EFM standard?

  1. Discovery and auto-negotiation of OAM capabilities.
  2. Link monitoring via event notifications.
  3. Remote failure indication (RFI).
  4. Remote Loopback
  5. Latency and jitter across a service.

Answer(s): E



When ports configured with IEEE 802.3ah EFM are operationally down, what must the device do before declaring the ports are up?

  1. The device will try to force the other side up using the evaluating flag in the PDU.
  2. The device will wait for the trasmit-interval of 5 before trying to rediscover the neighbor.
  3. The device will detect the port change and will wait for normal operation mode.
  4. The device will detect the port change and revert to discovery mode.

Answer(s): D



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