What will a Layer 2 switch do when the destination MAC address of a received frame is not in the MAC table?

Last Updated: Dec 27, 2024
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Question:

What will a Layer 2 switch do when the destination MAC address of a received frame is not in the MAC table?

  • It initiates an ARP request.
  • It broadcasts the frame out of all ports on the switch.
  • It notifies the sending host that the frame cannot be delivered.
  • It forwards the frame out of all ports except for the port at which the frame was received.

Explanation: A Layer 2 switch determines how to handle incoming frames by using its MAC address table. When an incoming frame contains a destination MAC address that is not in the table, the switch forwards the frame out all ports, except for the port on which it was received.

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