In a TCP half-open DoS attack, ________.
A) the attacker sends the final ACK of a session opening
B) the attacker sends an RST segment
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

In a TCP half-open (or SYN flood) DoS attack, the attacker sends a large number of SYN requests to a target server but does not complete the handshake by sending the final ACK. This leaves connections in a half-open state, consuming server resources and potentially leading to denial of service. Neither sending the final ACK (A) nor sending an RST segment (B) describes this attack method.

In a TCP Half-Open DoS Attack, ________