Which of the following is correct for the destination address…
2022
Which of the following is correct for the destination address 4A:30:10:21:10:1A ?
- A.
unicast address
- B.
multicast address
- C.
broadcast address
- D.
unicast and broadcast address
Attempted by 362 students.
Show answer & explanation
Correct answer: A
Answer: This is a unicast (individual) MAC address.
Look at the first octet of the MAC address: 4A (hex) = 0x4A = 01001010 (binary).
Check the least significant bit (LSB) of the first octet, known as the I/G (Individual/Group) bit: if LSB = 0 → individual (unicast); if LSB = 1 → group (multicast).
For 4A the LSB is 0 (01001010b), so the address is an individual (unicast) MAC address.
Note: A broadcast MAC address would be ff:ff:ff:ff:ff:ff (all ones), which this address is not.
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