(a) To convert the hexadecimal digits to binary, we can use the following table:
Hexadecimal Binary
9 1001
D 1101
2 0010
3 0011
E 1110
7 0111
Therefore, the binary register for the given MAC address is:
1001 1101 0010 0011 1110 0111
(b) A MAC address is a unique identifier assigned to a network interface controller (NIC) for use as a network address in communications within a network segment. It is used to uniquely identify devices on a network, such as computers, routers, and switches, to ensure that data is sent to the correct destination. MAC addresses are typically represented as a string of six pairs of hexadecimal digits separated by colons or hyphens.



