A network engineer notices that the MAC address table on a network switch is full. What type of Layer 2 network behavior will occur while the network MAC address table remains full?

Flooding does not occur regardless of destination - frames for MAC addresses already present in the full table are still forwarded normally, not flooded.

When the MAC address table reaches capacity, the switch cannot learn new MAC addresses. Any frame destined for a MAC address not currently in the table is treated as unknown unicast and flooded out all ports in the VLAN. Frames destined for MAC addresses that are still recorded in the full table continue to be forwarded normally to their known port, so flooding is selective, not universal.

Cisco switches do not automatically reset or clear the MAC address table upon reaching capacity; existing entries persist until they age out naturally.

Automatically reducing the MAC address table aging time is not a standard built-in response to a full MAC table on Cisco switches.