Certified Ethical Hacker 312-50v10 – Question194

Port scanning can be used as part of a technical assessment to determine network vulnerabilities. The TCP XMAS scan is used to identify listening ports on the targeted system.
If a scanned port is open, what happens?

The port will ignore the packets.
B. The port will send an RST.
C. The port will send an ACK.
D. The port will send a SYN.

Correct Answer: A