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Nokia 4A0-105 Exam - Topic 5 Question 121 Discussion

Actual exam question for Nokia's 4A0-105 exam
Question #: 121
Topic #: 5
[All 4A0-105 Questions]

A router has just learned the 10th MAC address while the FDB size is also set to 10. What is the likely outcome?

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Suggested Answer: C

by Allene at Jan 28, 2026, 06:23 PM

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Jesusita
5 days ago
I'm not entirely sure, but I remember something about the FDB being full causing it to flood traffic. Could that be it?
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Meghan
10 days ago
I think when the FDB reaches its limit, it might start dropping the oldest MAC addresses to make room for new ones, right?
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Devon
15 days ago
Alright, time to put on my thinking cap. With a full FDB and a new MAC address learned, the router is probably going to have to make some tough decisions. I'll need to consider the different ways this could play out.
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Kristine
20 days ago
Ah, I think I know what's going on here. The router's forwarding database is limited to 10 entries, and it just hit that limit. I'll need to think about how the router might handle that situation.
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Alishia
25 days ago
Okay, let me see here. If the FDB is full and a new MAC address comes in, the router will likely have to start evicting older entries. I'll need to analyze the potential consequences of that.
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Goldie
1 month ago
Uh oh, if the FDB size is set to 10 and the router just learned the 10th MAC address, that's probably not good. I'll need to consider what might happen.
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Leonora
1 month ago
Hmm, this seems like a classic MAC address table overflow scenario. I'll need to think through the potential outcomes carefully.
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