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Write a short note on MAC address.


Write a short note on MAC address.



Each NIC (Network Interface Card) has a universally unique address assigned to it by its manufacturer. This address is known as the MAC (Media Access Control) address of the card. It means that a machine with a NIC can be identified uniquely through its NIC’s MAC address. MAC address of an NIC is permanent and does never change.

MAC addresses are 12 – digit hexadecimal (6 bytes or 48 bit) numbers. By convention MAC addresses

are usually written in one of the following tow formats:

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