1. Hosts A & B are

   communicating over a TCP connection. Host A has received from host B all

   bytes up to 1288 and B has received from A all bytes up to 345.  

A sent a segment containing 70

bytes of data with source and destination port numbers of 540 and 820. What

are the contents of the indicated header fields?

case 2:

Then, B sent back a segment

of 200 bytes.  What are the

contents of the indicated header fields?