Consider the three-way handshake mechanism followed during TCP connection establishment between hosts P and Q. Let 255 and 511 be two random starting sequence numbers chosen by P and Q respectively. Suppose P sends a TCP connection request message to Q with a TCP segment having SYN bit = 1, SEQ number = 255, and ACK bit = 0. Suppose Q accepts the connection request. Which one of the following choices represents the information present in the TCP segment header that is sent by Q to P?
1
SYN bit = 0, SEQ number = 256, ACK bit = 0, ACK number = 511, FIN bit = 1
2
SYN bit = 1, SEQ number = 256, ACK bit = 0, ACK number = 511, FIN bit = 0
3
SYN bit = 1, SEQ number = 511, ACK bit = 1, ACK number = 255, FIN bit = 0
4
SYN bit = 1, SEQ number = 511, ACK bit = 1, ACK number = 256, FIN bit = 0
5
Question Not Attempted