XK0-005 Exam Dumps | A Linux engineer needs to block an incoming connection from the IP address 2.2.2.2 to a secure shell

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Question 64/192

A Linux engineer needs to block an incoming connection from the IP address 2.2.2.2 to a secure shell server and ensure the originating IP address receives a response that a firewall is blocking the connection. Which of the following commands can be used to accomplish this task?

A. iptables -A INPUT -p tcp -- dport ssh -s 2.2.2.2 -j DROP

B. iptables -A INPUT -p tcp -- dport ssh -s 2.2.2.2 -j RETURN

C. iptables -A INPUT -p tcp -- dport ssh -s 2.2.2.2 -j REJECT

D. iptables -A INPUT -p tcp -- dport ssh -s 2.2.2.2 -j QUEUE

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