Nokia Exam 4A0-105 Topic 3 Question 77 Discussion

Actual exam question for Nokia's 4A0-105 exam

Question #: 77
Topic #: 3

[All 4A0-105 Questions]

How is MAC learning achieved in traditional Ethernet switches?

AAs frames leave the switch, the DA is populated into the FDB.

BAs frames enter the switch, the DA is populated into the FDB.

CAs frames leave the switch, the SA is populated into the FDB.

DAs frames enter the switch, the SA is populated into the FDB.

Show Suggested Answer

Suggested Answer: D

by Ronny at Nov 24, 2023, 09:01 AM

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Essie

1 months ago

Ugh, I always get these MAC learning questions mixed up. Is it SA or DA? Entering or leaving? I need to brush up on my Ethernet switch fundamentals.

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Trinidad

1 months ago

B, B, B! Of course, it's B. The switch learns the MAC addresses by looking at the destination addresses of the incoming frames. This is MAC learning 101!

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Arthur

1 months ago

Hmm, I'm pretty sure it's D. As frames enter the switch, the SA is populated into the FDB. That makes sense, right? Wait, what if I'm completely off base here?

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Lynelle

1 months ago

I thought it was C. As frames leave the switch, the SA is populated into the FDB. Wait, that doesn't sound right. Let me reread the question.

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Clemencia

9 days ago

A) As frames leave the switch, the DA is populated into the FDB.

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Devora

14 days ago

B) As frames enter the switch, the DA is populated into the FDB.

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Willodean

19 days ago

A) As frames leave the switch, the DA is populated into the FDB.

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3 months ago

I think MAC learning is achieved when frames enter the switch.

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