PC1 sends a frame to PC2 whose MAC is not in the switch MAC table, so the switch forwards the frame to all ports in the VLAN. What switching behavior is this?
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Correct answer: Frame flooding.
Why this is the answer
Frame flooding occurs when a switch receives a frame destined for a MAC address not present in its MAC address table. To ensure delivery, the switch forwards the frame out of all ports within the same VLAN, except the port it was received on. This behavior allows the destination device to receive the frame and for the switch to learn its MAC address from the response. MAC address table refers to the table itself, not the behavior. Spanning Tree Protocol (STP) prevents loops in a switched network, it's not a forwarding behavior. MAC address aging is the process of removing stale entries from the MAC address table.
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