Which of the following TCP packet sequences are common during a SYN (or half-open) scan?
1) The scanning computer sends SYN-ACK and no response is received from the target computer
2) The scanning computer sends SYN-ACK and the target computer responds with RST-ACK
3) The scanning computer sends SYN and the target computer responds with RST-ACK
4) The scanning computer sends SYN and a SYN-FIN is received from the target computer

Q&A Education