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A security analyst is auditing firewall rules with the goal of scanning some known ports to check the firewall's behavior and responses. The analyst executes the following commands: The analyst then compares the following results for port 22: nmap returns "Closed" hping3 returns "flags=RA" Which of the following BEST describes the firewall rule?
Correct Answer: B
No doubt does the nmap result mean its being rejected as it returns closed. However, what threw me for a loop was the hping3 response. After further web surfing I found that the "flag=RA" means actually means "flag= RST, ACK" which means that it too was rejected.