Problem: (i)The following is a dump of the UDP header in hexadecimal
format: 06 32 00 0D 00 1C E2 17
a. What is the source port number (in hex and decimal format)? 
b. What is the destination port number (in hex and decimal format)? 
c. What is the total length of user datagram (in hex and decimal format)? 
d. What is the total length of the data portion (in decimal format)? 
(ii)  What is the purpose of the TCP/IP delayed-ACK procedure and of
the delayed-ACK timer?
(iii) For each one of the following protocols (IP, ICMP, UDP, TCP),
describe what portion of an IP datagram the checksum (in the
corresponding headers) covers and whether the checksum is mandatory or
optional.