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: Feb 17, 2025

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Question 1

How is the Primary Bridge chosen in a VPLS?

A : PE devices participating in the VPLS mesh run a separate Spanning Tree instance in the Core. The Primary Bridge is the Root Bridge for the VPLS mesh.

B : PE devices participating in the VPLS mesh determine which bridge is closest to Root Bridge. This bridge becomes the Primary Bridge.

C : PE devices participating in the VPLS mesh determine which bridge has the lowest bridge-id. This bridge becomes the Primary Bridge.

D : PE devices participating in the VPLS mesh determine which bridge is the Root Bridge. This becomes the Primary Bridge.

Answer: B

Question 2

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

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

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

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

Answer: C

Question 3

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 4

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 5

What is the MTU impact on the SDP path-mtu if fast reroute facilities-mode is implemented on the LSP?

A : ere will be no impact on the path-mtu

B : path-mtu will decrease by4 bytes.

C : path-mtu will increase by 4 bytes.

D : path-mtu will decrease by 8 bytes

E : path-mtu will increase by 8 bytes.

Answer: B

Page: 1 / 32

Total 158 Questions | Updated On: Feb 17, 2025

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