What is the length of a Layer 2 MAC address in bytes?

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Multiple Choice

What is the length of a Layer 2 MAC address in bytes?

Explanation:
Layer 2 MAC addresses are 48 bits long, which is 6 bytes. This size is defined by the IEEE standard as EUI-48 and is used for hardware addresses in Ethernet frames. In each Ethernet frame, both the destination and the source addresses are these 6-byte identifiers, typically written as six hexadecimal octets like 00:1A:2B:3C:4D:5E. While newer uses like EUI-64 exist for other purposes, classic Ethernet MACs remain 6 bytes. The other lengths would correspond to 4, 8, or 10 bytes, which are not the standard for Layer 2 MAC in Ethernet.

Layer 2 MAC addresses are 48 bits long, which is 6 bytes. This size is defined by the IEEE standard as EUI-48 and is used for hardware addresses in Ethernet frames. In each Ethernet frame, both the destination and the source addresses are these 6-byte identifiers, typically written as six hexadecimal octets like 00:1A:2B:3C:4D:5E. While newer uses like EUI-64 exist for other purposes, classic Ethernet MACs remain 6 bytes. The other lengths would correspond to 4, 8, or 10 bytes, which are not the standard for Layer 2 MAC in Ethernet.

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