PC1 tries to send traffic to newly installed PC2. The PC2 MAC address is not listed in the MAC address table of the switch, so the switch sends the packet to all ports in the same VLAN Which switching

The correct answer is C. frame flooding. When a switch receives a frame destined for an unknown MAC address (one not in its MAC address table), it floods the frame out all ports in the same VLAN (except the port it was received on). This is called frame flooding and ensures the packet reaches its destination even if the

Submitted by saadiq_pk· Mar 5, 2026Network Fundamentals

Question

PC1 tries to send traffic to newly installed PC2. The PC2 MAC address is not listed in the MAC address table of the switch, so the switch sends the packet to all ports in the same VLAN Which switching concept does this describe?

Options

AMAC address aging
BMAC address table
Cframe flooding
Dspanning-tree protocol

How the community answered

(26 responses)

A
4% (1)
B
8% (2)
C
85% (22)
D
4% (1)

Explanation

When a switch receives a frame destined for an unknown MAC address (one not in its MAC address table), it floods the frame out all ports in the same VLAN (except the port it was received on). This is called frame flooding and ensures the packet reaches its destination even if the switch doesn't yet know where the destination device is located.

Topics

#frame flooding#MAC address table operation#Layer 2 switching#unknown unicast

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