Nokia 4A0-105 Exam - Topic 1 Question 122 Discussion

Actual exam question for Nokia's 4A0-105 exam

Question #: 122
Topic #: 1

Click on the exhibit below.

How many LSPs are required in total between Metro A and Metro B if 100 hierarchical VPLS services are deployed across the two metro networks?

A100

B200

Show Suggested Answer

Suggested Answer: D

by Nell at Mar 03, 2026, 10:39 PM

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Linwood

3 days ago

I’m leaning towards D) 2. Seems like a simpler solution.

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Ceola

9 days ago

I feel like it could be A) 100. Each service needs one LSP, right?

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Gilberto

14 days ago

This question is tricky! I think it’s B) 200.

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Darrel

19 days ago

Huh, I thought it would be just 1 for both metros!

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Lazaro

24 days ago

Totally agree with 200, makes sense for hierarchical setups.

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Alpha

2 months ago

Wait, are we sure about that? Seems like it could be less.

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Glynda

2 months ago

I think it's just 100, one for each service.

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Ashton

3 months ago

It's definitely 200, right? Each service needs one per metro.

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Lavonne

3 months ago

Huh, I thought it would be just 1 for both metros!

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Emilio

3 months ago

Totally agree with 200, makes sense for hierarchical setups.

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Nguyet

3 months ago

Wait, are we sure about that? Seems like it could be less.

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Izetta

3 months ago

I think it's just 100, one for each service.

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Lazaro

4 months ago

It's definitely 200, right? Each service needs one per metro.

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Daren

4 months ago

I’m confused about whether the LSPs are shared or dedicated. If they’re dedicated, then it could be 200, but if they’re shared, maybe just 2?

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Carlee

4 months ago

I practiced a similar question where we had to calculate LSPs for a different number of services. I think it was 2 LSPs for a pair of networks, but this one seems trickier.

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Adria

4 months ago

I’m not entirely sure, but I feel like the number of LSPs could be related to the number of services. Maybe it’s 200 since each service might need its own LSP?

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German

4 months ago

I think we might need to consider how VPLS services are structured. I remember something about needing multiple LSPs for redundancy.

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