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

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.

Exam with this question: 9.4.2 Module Quiz – Address Resolution Answers
Exam with this question: CCNA 1 (v5.1 + v6.0) Practice Final Exam Answers
Exam with this question: Networking Basics - 7.3.3 The Access Layer Quiz
Exam with this question: Networking Basics - My Knowledge Check Answers