What describes MAC address learning?

MAC address learning is a fundamental function of Ethernet switches, allowing them to build a MAC address table (CAM table). This table maps MAC addresses to specific switch ports, enabling efficient frame forwarding. It is enabled by default on all VLANs and interfaces because it's essential for the switch to operate correctly and forward traffic to the correct destination. Without MAC address learning, the switch would have to flood all unknown unicast frames out of all ports, which is inefficient and creates unnecessary network traffic. Incorrect options: Disabled by default on all interfaces connected to trunks: MAC learning is active on trunk ports to learn MAC addresses from multiple VLANs. Increases security on the management VLAN: While MAC address tables are part of switch operation, MAC learning itself doesn't inherently increase security on a specific VLAN. Security is enhanced through other features like port security. Increases the potential for MAC address flooding: MAC learning reduces the potential for flooding by allowing the switch to forward frames directly to the correct port once an address is learned. Flooding occurs when an address is not learned.