Consider the three way hand shaking process followed during TCP connection establishment between two hosts A and B. Let S and R be two random 32 - bit starting sequence numbers chosen by A and B, respectively. Suppose A sends a TCP segment having SYN bit = 1, SEQ number = S and ACK bit=0 and B accepts the connection request.
Which one of the following choices represents the information present in the TCP segment header that is sent by B to A?
1
SYN bit = 1, SEQ number = S + 1, ACK bit = 0, ACK number = R, FIN bit = 0
2
SYN bit = 0, SEQ number = R, ACK bit = 1, ACK number = S + 1, FiN bit = 0
3
SYN bit = 1, SEQ number = R, ACK bit = 1, ACK number = S + 1, FiN bit = 0
4
SYN bit = 1, SEQ number = R, ACK bit = 1, ACK number = S, FiN bit = 0