Free Nokia 4A0-105 Exam Questions

Become Nokia Certified with updated 4A0-105 exam questions and correct answers

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Total 158 Questions | Updated On: Jun 16, 2026

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Question 1

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

A : ocessing the TTL takes extra time

B : learning rate is doubled.

C : size is doubled

D : quires a protocol to remove loops

Answer: D

Question 2

Click on the exhibit below.

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

A : LS1500 is a user VPLS

B : LS 1500 is management VPLS.

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

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

Answer: A,D

Question 3

Consider a large metro-to-metro VPLS network interconnected with a mesh of mesh-SDPs. Which of the following statements does NOT apply to this situation?

A : ndwidth and replication inefficiency can occur on inter-metro links if there is a lot of multicast traffic

B : number of control sessions grows exponentially in a fully meshed network

C : anning-tree is required to prevent loops when using mesh SDPs on the inter-metro links.

D : twork touches increase with each node added to the mesh.

Answer: C

Question 4

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

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

C : 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

Question 5

Which of the following statements is false?

A : LS is a bridged LAN service

B : LS provides L2 VPN services to CEs

C : LS is a point-to-point service where CEs are presented with point-to-point virtual circuits.

D : that are members of the same VPLS service instance communicate with each other as if they are connected via a bridged LAN.

Answer: C

Page: 1 / 32

Total 158 Questions | Updated On: Jun 16, 2026

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