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

Updated On: 7-Feb-2026
Page 4 of 40
PDF with 193 Questions

Click on the exhibit below.


The following VPLS services and SAPs have been configured. Which of the following statements is true?

  1. All untagged frames will be dropped.
  2. The source MAC address of a frame with a top tag of 200 and bottom tag of 300 will be populated in VPLS 3.
  3. All frames with more than one tag will be dropped.
  4. The source MAC address of a frame with a single tag of 500 will be populated in VPLS 1.
  5. The source MAC address of a frame with a top tag of 100 will be populated in VPLS 2.

Answer(s): E



Click on the exhibit below.


If the SDP between R2 and R1 goes down, what devices will be reachable from R2 through the VPLS?

  1. Only R4 will be reachable through the VPLS.
  2. All devices will be reachable through the VPLS.
  3. R4 and R3 will remain reachable.
  4. No devices will be reachable.

Answer(s): A



What is the default service-mtu for a VPLS service?

  1. 1500
  2. 1514
  3. 1518
  4. It depends on the access port MTU.
  5. It depends on the network port MTU.

Answer(s): B



Click on the exhibit below.

The VPLS service MTU on R2 is 1514 bytes. What must the service MTU be on all other routers participating in the VPLS?

  1. The service MTU must be equal to or smaller than 1514 bytes.
  2. The service MTU must be 1514 bytes.
  3. The service MTU must be equal to or greater than 1514 bytes.
  4. The service MTU can be any value.

Answer(s): B



What is the default fdb size for a VPLS service?

  1. 100
  2. 1
  3. 25
  4. 250

Answer(s): D






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