Question

question 23
which is a multicast mac address?
01-00-5e-00-00-03
00-26-0f-4b-00-3e
5c-26-0a-4b-19-3e
ff-ff-ff-ff-ff-ff

Explanation:

Multicast MAC addresses in Ethernet have the first byte with the least - significant bit set to 1. In hexadecimal, the first byte of a multicast MAC address starts with 01. The address 01 - 00 - 5E - 00 - 00 - 03 starts with 01, which indicates it is a multicast MAC address. The address FF - FF - FF - FF - FF - FF is a broadcast MAC address, and the other two addresses do not have the characteristic first - byte value for multicast.

Answer:

01-00-5E-00-00-03