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Which part of a MAC address is called the organizationally unique identifier(OUI)?

The first 24 bits, or 3 bytes
The first 12 bits, or 3 bytes
The first 24 bits, or 6 bytes
The first 32 bits, or 3 bytes

Correct Answer: The first 24 bits, or 3 bytes

Explanation:

The first 24 bits, or 3 bytes, of a MAC address is called the organizationally unique identifier (OUI).

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