Which of these is a valid MAC address?0.5 MarksA6:8G:GE:12:C6:89B9:DA:00:12:78:34:09:EE:D2(C) A698::0976:AD5B:F78A(D) AA:6F:7A:BB:C3:9DAA:6F:7A:BB:C3:9DA698::0976:AD5B:F78A
Question
Which of these is a valid MAC address?0.5 MarksA6:8G:GE:12:C6:89B9:DA:00:12:78:34:09:EE:D2(C) A698::0976:AD5B:F78A(D) AA:6F:7A:BB:C3:9DAA:6F:7A:BB:C3:9DA698::0976:AD5B:F78A
Solution
The valid MAC address from the given options is (D) AA:6F:7A:BB:C3:9D.
A MAC address is a unique identifier assigned to network interfaces for communications on the physical network segment. It is a 48-bit number (12 hexadecimal digits). It's usually written in one of the following two formats: MM:MM:MM:SS:SS:SS or MM-MM-MM-SS-SS-SS, where MM is manufacturer ID and SS is a serial number assigned by the manufacturer.
Option (A) is not valid because it contains the letter 'G', which is not a valid hexadecimal digit.
Option (B) is not valid because it contains more than 12 hexadecimal digits, which exceeds the standard MAC address length.
Option (C) is not valid because it appears to be an IPv6 address, not a MAC address.
Option (D) is a valid MAC address because it contains exactly 12 hexadecimal digits, and is therefore the correct answer.
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