​Which of the following is the correct physical address of a computer?​

Correct option is D

Introduction:

The physical address of a computer, also known as the MAC (Media Access Control) address, is a unique identifier assigned to a network interface card (NIC) for communications at the data link layer of a network segment.

Information Booster:

• A MAC address is 6 bytes (48 bits) long.
• It is usually represented as six pairs of hexadecimal digits, separated by colons or hyphens.
• For example: F8:FC:AE:7B:16:CE
• Any address with fewer or more than 6 segments (or 12 hexadecimal characters) is invalid as a standard MAC address.

Correct Format Analysis:

Let's evaluate each option:

1. FC : F8 : AE : 7B → Only 4 pairs (incomplete)
2. F8 : FC : AE → Only 3 pairs (invalid)
3. F8 : FA : 7B : FC : 16 : 1B : AB → 7 pairs (too long)
4. F8 : FC : AE : 7B : 16 : CE → 6 pairs (correct format)

Additional Knowledge:

• MAC addresses are assigned by hardware manufacturers and are typically hardcoded into the device.
• The first 3 bytes represent the Organizationally Unique Identifier (OUI) identifying the manufacturer.
• MAC addresses are crucial for local network communication, such as within a LAN.