A switch has received a frame on an ingress port. What will the switch do if the unicast destination MAC address is not in the MAC address table?

Last Updated: Jan 9, 2023
IT Exam Items Repository › Category: CCNA 2 v7 › A switch has received a frame on an ingress port. What will the switch do if the unicast destination MAC address is not in the MAC address table?

A switch has received a frame on an ingress port. What will the switch do if the unicast destination MAC address is not in the MAC address table?

  • It will drop the frame.
  • It will forward the frame out all ports.
  • It will forward the frame out all ports except the incoming port.
  • It will forward the frame out of the specified port in the MAC address table.

Explanation: If the destination MAC address is not in the table, the switch will forward the frame out all ports except the incoming port. This is called an unknown unicast.

Related exam: 2.3.2 Module Quiz - Switching Concepts

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