COMPUTER NETWORKING

Detailed explanation-1: -An Ethernet MAC address is a 48-bit address expressed using 12 hexadecimal digits, as shown in Figure 7-7. Because 1 byte equals 8 bits, we can also say that a MAC address is 6 bytes in length. All MAC addresses must be unique to the Ethernet device or Ethernet interface.

Detailed explanation-2: -A MAC address consists of 48 bits, usually represented as a string of 12 hexadecimal digits (0 to 9, a to f, or A to F); these are often grouped into pairs separated by colons or dashes.

Detailed explanation-3: -MAC addresses are called the “burned in address”. NIC manufactures will assign MAC address to the device and hardcoded is stored in ROM chip and preloaded into non-volatile memory like EEPROM.

Detailed explanation-4: -There are three types of MAC addresses: Unicast, Multicast, and Broadcast. The way to identify which address type you are viewing is simply look at the first byte.