The MAC address is represented as a string of hexadecimal numbers separated by colons or dashes, such as 00:11:22:33:44:55 or 00-11-22-33-44-55.It is stored in hardware and is unique to each NIC, ensuring that no two devices on a network segment can have the same MAC address.The MAC address is a 48-bit number and is used for communication at the Data Link layer of the OSI model.It is used in most IEEE 802 networking technologies, including Ethernet, Wi-Fi, and Bluetooth.A MAC (Media Access Control) address is a unique identifier assigned to a network interface controller (NIC) for use as a network address in communications within a network segment.
