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(a) Three-way handshake is a process to set up a TCP connection. Draw a diagram to show the three-way TCP connection-establishment flow of two computers: Host A and Host B. Choose any value for the sequence and acknowledgement numbers to start with. (b) Figure 3 illustrates a process. (1) Identify the process shown. Explain the importance of the process in data transmission. (ii) Let say Host B sends win = 512. What is Host A's response? Host A (source) Host B (destination) len 1024, win 4096 len 1024, win 4096 len 1024, win 4096 len 1024, win 4096 ack 4097, win 2048 len 1024, win 2048 len 1024, win 2048 ack 6145, win 2048 len 1024, win 2048 len 1024, win 2048 Figure 3. A process in transport layer