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Nokia 4A0-105 Exam - Topic 4 Question 119 Discussion

During the process of troubleshooting a VPLS problem the "oam mac-purge" command with "register" option was used to purge a MAC address from the FDB. Which of the following statements is true?
B) Relearning of the MAC address that was purged can only be done with the 'oam mac-populate' command.
A) Relearning of the MAC address that was purged can only be done once customer traffic resumes.
C) Customer traffic destined to the MAC address that was purged will be dropped until the MAC address is relearned with the 'oam mac-populate' command.
D) Relearning of the MAC address that was purged can only be done with the 'oam mac-register' command.

Nokia 4A0-105 Exam - Topic 4 Question 119 Discussion

Actual exam question for Nokia's 4A0-105 exam
Question #: 119
Topic #: 4
[All 4A0-105 Questions]

During the process of troubleshooting a VPLS problem the "oam mac-purge" command with "register" option was used to purge a MAC address from the FDB. Which of the following statements is true?

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Suggested Answer: B

by Elin at Nov 25, 2025, 02:15 AM

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Felton
2 months ago
C is definitely true. Dropped traffic is a big issue until it’s relearned.
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Luke
2 months ago
A seems right to me. Without traffic, no relearning happens.
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Gianna
2 months ago
I’m leaning towards B. The "oam mac-populate" command is crucial for relearning.
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Rosio
2 months ago
I feel like D makes sense. The "oam mac-register" command is key.
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Vince
2 months ago
C) is spot on, traffic will drop for sure.
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Glynda
3 months ago
B) is definitely not the way to go.
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Henriette
3 months ago
Surprised to see D) as an option, sounds off.
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Junita
3 months ago
I disagree, C) makes more sense to me.
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Golda
4 months ago
Haha, "oam mac-purge" - sounds like a magic spell from Harry Potter!
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Edwin
4 months ago
A) is the one. Relearning that MAC is a piece of cake once the traffic starts flowing.
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Jaime
4 months ago
D) all the way! "oam mac-register" is the secret sauce.
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Tammara
4 months ago
B) is the way to go. Ain't no "oam mac-populate" like the real deal.
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Elena
4 months ago
C) seems like the correct answer. Gotta love those MAC address purges!
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Magdalene
4 months ago
I vaguely recall that once a MAC is purged, traffic to that address gets dropped until it’s relearned, but I can't remember the exact command needed.
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Melina
5 months ago
I’m a bit confused about the commands. Does the "oam mac-register" actually help with relearning, or is it just for registering?
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Rupert
5 months ago
I think we practiced a question similar to this, and I feel like the "oam mac-populate" command was important for relearning.
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Nikita
5 months ago
I remember something about how purging a MAC address affects traffic, but I'm not sure if it drops packets until relearning happens.
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Eleni
5 months ago
I'm pretty confident I can get this one. The "oam mac-purge" command with "register" option just marks the MAC address for relearning, it doesn't actually remove it. So the key is understanding the different ways the MAC address can be relearned.
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Annamae
5 months ago
Okay, let me think this through. I need to focus on what happens after the MAC address is purged, and how it can be relearned. The answer choices seem to be giving me different options for that.
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Ciara
5 months ago
I think it's A. Traffic needs to resume first.
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Polly
6 months ago
A) is correct, traffic resumes first.
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Tenesha
6 months ago
I disagree, I believe it's C. Traffic will be dropped until relearned.
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Earleen
6 months ago
Alright, I think I'm starting to get it. I need to pay close attention to the specific wording of the answer choices and figure out which one accurately describes the relearning process.
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Herminia
7 months ago
I think I know how to approach this one. The key is understanding what the "oam mac-purge" command with "register" option does.
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Terina
1 month ago
I agree with C. No traffic until it's relearned.
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William
1 month ago
D could be a possibility too, but I'm leaning towards A.
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Katie
2 months ago
What about B? Seems like it needs the "oam mac-populate" command.
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Brett
6 months ago
I think C makes more sense. Dropped traffic until relearned.
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Twana
6 months ago
I believe A is correct. Traffic needs to resume first.
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