Free 4A0-105 Exam Braindumps (page: 15)

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If the max remote-age timer of a B-VPLS is reached, what happens to the remotely learned MAC addresses in the l-VPLS service?

  1. There is no effect. The MAC addresses for the l-VPLS age out independently of the aging of B-VPLS addresses.
  2. The MAC addresses for the l-VPLS will age out immediately following the remote-age out of the backbone-macs of the B-VPLS.
  3. By default, the remote-age timer of the B-VPLS is configured to 0 and addresses do not age out. The l-VPLS uses its own timer.
  4. The same timer is used for B-VPLS and l-VPLS addresses on the node.

Answer(s): B



What is the default remote-age timer of a B-VPLS?

  1. The same timer is used in all VPLS types.
  2. Higher than the default timer of an I-VPLS.
  3. Lower than the default timer of an l-VPLS.
  4. The same timer as an l-VPLS.

Answer(s): C



Which of the following describes the scope of the IEEE 802.3ah EFM standard? (Choose 3)

  1. Monitor and troubleshoot a point-to-point full-duplex link.
  2. Monitor and troubleshoot end-to-end services.
  3. Can be used at the core to trigger MPLS protection mechanisms when a physical failure detection is not possible.
  4. Should not be used at the core to trigger MPLS protection. BFD is the only method that can be used when physical failure detection is not possible.
  5. Valuable in the last-mile connection to the Service Provider demarcation device.

Answer(s): A,C,E



IEEE 802.3ah is similar to SONET/SDH in that it can count and report bit errors and frame errors.

  1. TRUE
  2. FALSE

Answer(s): A






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