Nokia 4A0-C02 Exam - Topic 10 Question 119 Discussion

Actual exam question for Nokia's 4A0-C02 exam

Question #: 119
Topic #: 10

The FDB has learned 2 MAC addresses. The first is from a device accessible via a locality defined SAP, the second is from a device accessible via an SDP. Both MAC addresses were learned at the exact same time. If all traffic from these hosts stops at the same time, which address will age out first from the FDB based on default settings?

AMAC learned via SAP

BMAC learned via SDP

CThere is not enough information to determine

DBoth will timeout at the same time

Show Suggested Answer

Suggested Answer: A

by Marget at Jan 05, 2026, 05:16 AM

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Yoko

3 days ago

Hmm, this is a tricky one. I'm going to go with C and hope the professor has a sense of humor. Maybe they'll give partial credit for the witty response.

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Jospeh

8 days ago

D is the way to go. If both MACs were learned at the same time and the traffic stops simultaneously, they should time out at the same time.

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Meaghan

14 days ago

C is the correct answer. We don't have enough information about the traffic patterns and FDB settings to determine which MAC will age out first.

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Sol

19 days ago

I think the answer is B. The MAC learned via SDP should age out first since it's less reliable than the one learned via SAP.

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Stefanie

24 days ago

I'm leaning towards option C, but I feel like I need to double-check the default aging times for SAP and SDP to be certain.

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India

29 days ago

This feels tricky! I want to say both would timeout at the same time, but I also remember something about default settings affecting aging.

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Doug

1 month ago

I remember a practice question where we discussed how MAC addresses from different sources can have different aging times, but I can't recall the specifics.

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Erick

1 month ago

I think the MAC address learned via SAP might age out first because it's associated with a locality, but I'm not completely sure.

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Hyun

1 month ago

I've got a strategy for this. I'll think through the typical behavior for MAC address aging, then consider how the SAP and SDP sources might impact that.

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Annmarie

2 months ago

Okay, let me see. The question is asking about the aging out behavior, so I need to focus on that. I'll make sure I understand the default timeout settings for each type of MAC address.

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Josphine

2 months ago

Hmm, I think I know the answer, but I want to double-check my understanding of how the FDB handles MAC addresses from different types of ports.

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Jaime

2 months ago

I'm not sure about this one. I'll need to think through the default settings for aging out MAC addresses learned via SAP vs SDP.

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