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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Trina

1 month ago

I believe D) Both will timeout at the same time. They were learned simultaneously.

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Helga

1 month ago

Not sure, but I feel like C) There is not enough information to determine.

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Lauran

1 month ago

I disagree, I lean towards B) MAC learned via SDP. More stable connections.

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Essie

2 months ago

I think it's A) MAC learned via SAP. It usually has a shorter timeout.

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Tequila

2 months ago

I've heard SDP can have longer aging times, though.

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Rupert

2 months ago

I think both will timeout at the same time, right?

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Carey

2 months ago

Wait, are you sure about that?

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Adela

2 months ago

Totally agree, SAP has a shorter timeout!

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Salome

3 months ago

A) MAC learned via SAP

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Xenia

3 months ago

I'm going with B. Who cares about the details, let's just pick the most random-sounding option and see what happens!

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Yoko

3 months 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

4 months 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

4 months 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

4 months 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

4 months 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

4 months 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

4 months 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

5 months 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

5 months 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

5 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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