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Nokia 4A0-105 Exam - Topic 2 Question 124 Discussion

What is the default Spanning Tree protocol used in a VPLS on the Alcatel-Lucent 7750 SR?
A) 802.1D2004
B) 802.1D 1998
C) comp-dot1w
D) PVST

Nokia 4A0-105 Exam - Topic 2 Question 124 Discussion

Actual exam question for Nokia's 4A0-105 exam
Question #: 124
Topic #: 2
[All 4A0-105 Questions]

What is the default Spanning Tree protocol used in a VPLS on the Alcatel-Lucent 7750 SR?

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Suggested Answer: A

by Truman at Apr 08, 2026, 05:12 AM

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Scarlet
3 days ago
I remember studying B) 802.1D 1998. It’s widely used.
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Marshall
8 days ago
I disagree, D) PVST is too old for this context.
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Lashandra
13 days ago
I’m leaning towards C) comp-dot1w. It’s specific to VPLS.
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Shannan
18 days ago
I feel like it’s A) 802.1D2004. Newer version, right?
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Mari
23 days ago
I think it's B) 802.1D 1998. Seems standard.
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Linn
28 days ago
I agree with Loren. A) is the best choice.
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Lou
1 month ago
A) 802.1D2004 makes sense for modern setups.
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Sarina
1 month ago
I feel like D) PVST is too old for this.
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Josphine
1 month ago
C) comp-dot1w sounds right for VPLS.
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Veronique
2 months ago
I’m leaning towards B) 802.1D 1998. It’s classic.
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Loren
2 months ago
I think it's A) 802.1D2004. Seems most recent.
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Felicitas
2 months ago
Surprised it's not PVST, thought that was more common.
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Ozell
2 months ago
Nope, definitely B. Been using it for years!
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Hermila
2 months ago
Wait, are you sure? I thought it was A) 802.1D2004.
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Van
4 months ago
Totally agree, that's the standard for VPLS.
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Tijuana
4 months ago
It's B) 802.1D 1998.
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Beula
5 months ago
I remember reading about PVST in my notes, but I don't think it's the right answer for this specific case.
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Rodolfo
5 months ago
I practiced a similar question last week, and I believe the answer was 802.1D 1998, but I'm not entirely sure.
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India
5 months ago
I vaguely recall that comp-dot1w might be related, but I don't think it's the default for VPLS.
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Theola
5 months ago
I think the default protocol for VPLS on the 7750 SR is 802.1D, but I can't remember if it's the 1998 or 2004 version.
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