Which of the following is a unique identifier assigned to a network interface card (NIC)?

Which of the following is a unique identifier assigned to a network interface card (NIC)?
A . IP address
B . Default gateway
C . MAC address
D . Subnet mask

View Answer

Answer: C

Explanation:

A Media Access Control (MAC) address is a unique identifier assigned to a network interface card (NIC) by the manufacturer. It is a 48-bit address typically represented as six groups of two hexadecimal digits separated by colons or hyphens. MAC addresses are used for communication at the data link layer of the network stack.