Free Nokia 4A0-105 Practice Exam Questions and Answers 2026

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Total 158 Questions | Updated On: Apr 02, 2026

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Question 1

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

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

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

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

Answer: C

Question 2

What configuration is required on the CE device when using MC-LAG?

A : The CE must be configured with an MC-LAG to both PE devices.

B : The CE must be configured with LACP in active mode.

C : There is no configuration required on the CE.

D : The CE must be an Alcatel-Lucent 7750 SR.

Answer: B

Question 3

Click on the exhibit below. 4-A0-105-page64-image32 Assume PE-B expects avian tag as part of the RFC 4762 (Martini) encapsulation. How must PE-A be configured?

A : The port that the SAP belongs to must have the correct ether type configured.

B : The SAP must be configured with the right VLAN tag

C : The SDP VC type must be configured as type VLAN and the correct vlan-vc-tag must be specified

D : All of the above.

Answer: C

Question 4

Which of the following statements is false?

A : VPLS is a bridged LAN service

B : VPLS provides L2 VPN services to CEs

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

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

Answer: C

Question 5

Click on the exhibit below. 4-A0-105-page64-image8 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

Page: 1 / 32

Total 158 Questions | Updated On: Apr 02, 2026

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