Alcatel-Lucent 4A0-105 Exam Questions
4A0-105 Virtual Private LAN Services (Page 22 )

Updated On: 21-Mar-2026

Click on the exhibit below.

Based on the output below which of the following statements is true? (Choose 2)

  1. VPLS1500 is a user VPLS.
  2. VPLS 1500 is management VPLS.
  3. Spanning tree BPDUs for the management VPLS are tagged.
  4. Spanning tree BPDUs for the management VPLS are untagged.

Answer(s): A,D



If a management VPLS is administratively disabled what will be the status of the associated user VPLS SAPs?

  1. Regular semantics will apply. It will be as if the SAP doesn't belong to a management VPLS.
  2. All user VPLS SAPs will be disabled/pruned.
  3. It is not possible to administratively disable a management VPLS.
  4. Spanning tree will be automatically enabled on the user VPLS SAPs.

Answer(s): B



MC-LAG is only supported on network ports.

  1. TRUE
  2. FALSE

Answer(s): B



Which protocol is used to signal the status of the active links between the PE and the CE in MC-LAG?

  1. MSTP
  2. MCLAG
  3. LACP
  4. DHCP
  5. A proprietary protocol

Answer(s): C



MC-LAG provides link and node protection from an MDU to 3 or more PE devices.

  1. TRUE
  2. FALSE

Answer(s): B



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