When a switch receives a frame for an unknown destination MAC address, how is the frame handled?

The correct answer is B. flooded to all ports except the origination port. Switches tend to flood frame with the Unknown Destination MAC Address out all ports apart from the Originating (apart from the one it received) port.

Submitted by layla.eg· Mar 5, 2026Network Fundamentals

Question

Options

Abroadcast to all ports on the switch
Bflooded to all ports except the origination port
Cforwarded to the first available port
Dinspected and dropped by the switch

How the community answered

(24 responses)

A
8% (2)
B
88% (21)
C
4% (1)

Explanation

Switches tend to flood frame with the Unknown Destination MAC Address out all ports apart from the Originating (apart from the one it received) port.

Topics

#Switch forwarding#Frame flooding#MAC address table

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