You are scanning a network to ensure it is as secure as possible. You send a TCP probe packet to a host with a FIN flag and receive a RST/ACK response. What does this mean?

Hello your question lacks the required options here are the options

A)This response means the port he is scanning is open.

B)The RST/ACK response means the port Fred is scanning is disabled.

C)This means the port he is scanning is half open.

D) This means that the port he is scanning on the host is closed

answer : This means that the port he is scanning on the host is closed ( D )

Explanation:

When you scan a network to ensure it is secure enough by sending a TCP probe to a host with a FIN flag and you receive a RST/ACK response it means that The port that is been scanned on the host is closed

A TCP scanning/probe involves sending a number of packets to each port that is scanned. when you Compare TCP scanning methods to other methods of scans, a TCP Connect scan is typically slow and methodical.