(a) When a DHCP enabled client connects to LAN, the client uses DHCP to obtain its required IP addresses from the DHCP server with the IP address 192.168.1.250 on the LAN. (i) Describe the underlying processes (in details) of how a client that connects for the first time to the network will communicate with the DHCP server to obtain IP address 192.168.1.1 on the LAN. (ii) Once the client has obtained IP address 192.168.1.1 and the additional information set supplied by DHCP, how does the client communicate with its first hop router on the LAN? (b) What is a CRC code? What purpose does it serve? Compute the CRC bits defined by the generator 1001 and the data bit string 101111, you must provide a step by step calculation to obtain the CRC bits.