What addressing information is recorded by a switch to build its MAC address table?

What addressing information is recorded by a switch to build its MAC address table?

• the destination Layer 3 address of incoming packets
• the destination Layer 2 address of outgoing frames
• the source Layer 3 address of outgoing packets
• the source Layer 2 address of incoming frames

Explanation: A switch builds a MAC address table by inspecting incoming Layer 2 frames and recording the source MAC address found in the frame header. The discovered and recorded MAC address is then associated with the port used to receive the frame.

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