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QUESTION: 1

Which of the following statements relating to VPLS is false?

A VPLS is a multipoint Layer 2 service.
A VPLS allows multiple customer sites to be connected in a single bridged domain.
A VPLS on a single node requires a SDP.
With an IP/MPLS infrastructure, service providers can provide multiple VPLS services over a common IP/MPLS infrastructure.
The VPLS switches traffic based on MAC address associated to the appropriate SAP.

Answer(s): C

QUESTION: 2

During the process of troubleshooting a VPLS problem the "oam mac-purge" command with "register" option was used to purge a MAC address from the FDB. Which of the following statements is true?

Relearning of the MAC address that was purged can only be done once customer traffic resumes.
Relearning of the MAC address that was purged can only be done with the "oam mac-populate" command.
Customer traffic destined to the MAC address that was purged will be dropped until the MAC address is relearned with the "oam mac-populate" command.
Relearning of the MAC address that was purged can only be done with the "oam mac-register" command.

Answer(s): B

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QUESTION: 3

Why are provisioning requirements a factor that influence VPLS design? (Choose two.)

Adding or removing a node may require several network touches.
Adding or removing a SAP may require several network touches.
Adding or removing a service may require several network touches.
Adding or removing an Epipe may require several network touches.
Provisioning is a factor for all Ethernet services.

Answer(s): A,C

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QUESTION: 4

In RSTP, an alternate port is on the same switch as a designated Port.

TRUE
FALSE

Answer(s): B

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QUESTION: 5

MAC explosion is best described as a large amount of MAC addresses being withdrawn and relearned?

TRUE
FALSE

Answer(s): A

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Alcatel-Lucent 4A0-105 Exam (page: 1)
Alcatel-Lucent 4A0-105 Virtual Private LAN Services
Updated on: 31-Mar-2026

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Alcatel-Lucent 4A0-105 Exam (page: 1) Alcatel-Lucent 4A0-105 Virtual Private LAN Services Updated on: 31-Mar-2026

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Alcatel-Lucent 4A0-105 Exam (page: 1)
Alcatel-Lucent 4A0-105 Virtual Private LAN Services
Updated on: 31-Mar-2026