Practice 4A0-105 Exam Online

Question 1

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

A : Regular semantics will apply. It will be as if the SAP doesn't belong to a management VPLS.

B : All user VPLS SAPs will be disabled/pruned

C : It is not possible to administratively disable a management VPLS

D : Spanning tree will be automatically enabled on the user VPLS SAPs.

Answer: B

Question 2

Which of the following needs to be considered when designing Ethernet networks with redundancy?

A : Processing the TTL takes extra time

B : MAC learning rate is doubled.

C : FDB size is doubled

D : Requires a protocol to remove loops

Answer: D

Question 3

Click on the exhibit below.

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

A : VPLS1500 is a user VPLS

B : VPLS 1500 is management VPLS.

C : Spanning tree BPDUs for the management VPLS are tagged.

D : Spanning tree BPDUs for the management VPLS are untagged.

Answer: A,D

Question 4

Click on the exhibit below.

A new router named PE-D is to be directly connected to PE-C and is required to be added to the existing VPLS

300. The design requires the least amount of signaling, the least amount of configuration changes for existing

sites and the new site has to have access to all existing sites. How should the new site be added to VPLS 300?

A : Configure a mesh-sdp between all existing PE routers and the new PE router

B : Configure a mesh-sdp between PE-C and PE-D

C : Configure a spoke-sdp between PE-C and PE-D.

D : It is not possible to meet the design requirements.

Answer: C

Question 5

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?

A : There is no effect. The MAC addresses for the l-VPLS age out independently of the aging of B-VPLS addresses

B : The MAC addresses for the l-VPLS will age out immediately following the remote-age out of the backbonemacs of the B-VPLS

C : By default, the remote-age timer of the B-VPLS is configured to 0 and addresses do not age out. The lVPLS uses its own timer.

D : The same timer is used for B-VPLS and l-VPLS addresses on the node.

Answer: B

Name:	Nokia Virtual Private LAN Services
Exam Code:	4A0-105
Certification:	SRC Certification
Vendor:	Nokia
Total Questions:	158
Last Updated:	Feb 09, 2026

Nokia 4A0-105 Answers