What is the length of a MAC address A. 6 bytes B. 12 bytes C. 24 bytes D. 48 bytes

The correct answer is D. 48 bytes.

Explanation:

A MAC (Media Access Control) address is typically expressed as a 48-bit identifier used for network interface identification in devices. When converted into bytes, 48 bits equals 6 bytes, as there are 8 bits in a byte.

To clarify:

1. Convert bits to bytes: $\text{Length in bytes} = \frac{\text{Length in bits}}{8} = \frac{48 \text{ bits}}{8} = 6 \text{ bytes}$

In hexadecimal representation, a MAC address is usually formatted as 12 hexadecimal digits (each representing 4 bits), often displayed in two-character segments separated by colons or hyphens. However, in terms of length, the correct byte representation of a MAC address is 6 bytes.