Question

Also called a physical or device address, the hexadecimal number permanently assigned to a interface and used by the MAC sublayer (a communications sublayer for controlling how computers share communications on the same network)

Answer 1

The MAC address is a unique hexadecimal identifier assigned to network interface cards for communication within a network, operating in the MAC sublayer of the Data Link Layer.

Step-by-step explanation:

The term you're referring to is the Media Access Control (MAC) address. It is a unique hexadecimal number that is permanently assigned to every network interface card (NIC) for use in network communication. The MAC address operates within the MAC sublayer of the Data Link Layer of the OSI model and is crucial for the control of how computers on the same network share communications. It's effectively the distinctive identifier for network devices, which allows them to be individually recognized on a LAN (Local Area Network).