How does MAC learning function on a switch?

The correct answer is C. adds unknown source MAC addresses to the address table. When a switch recieves PDUs it examins the mac address to see if its already in its table and if its not it then adds it to its own table this process is called mac address learning.

Submitted by yuki_2020· Mar 5, 2026Network Access

Question

Options

Abroadcasts frames to all ports without queueing
Bsends an ARP request to locate unknown destinations
Cadds unknown source MAC addresses to the address table
Dsends a retransmission request when a new frame is received

How the community answered

(48 responses)

A
4% (2)
B
2% (1)
C
92% (44)
D
2% (1)

Explanation

When a switch recieves PDUs it examins the mac address to see if its already in its table and if its not it then adds it to its own table this process is called mac address learning.

Topics

#MAC learning#CAM table#switch forwarding#source MAC

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