Community QuestionSeen on 3 CBTsRe-created in 5 study sets this year

Media Access Control (MAC) address

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Answer

The hardware address of a network device, also called the Ethernet address (on Ethernet devices) or NIC address.

Alternate answers seen on other CBTs

The same question shows up worded slightly differently across CBT versions. Here are the other answer variants we've indexed.

A unique identifier assigned to network adapters by the manufacturer. This address is six octets in length (12 characters) and is written in hexadecimal. 48bit address.

Comptia A+ Core 1 Study Guide