Which of the following netcat parameters makes netcat a listener that automatically restarts itself when a connection is dropped?

The correct answer is D. -L. In the Windows version of Netcat (nc.exe), -L (uppercase) is the 'Listen harder' flag - it puts Netcat into persistent listener mode, meaning it automatically restarts and waits for a new connection after the current one is terminated. The lowercase -l simply opens a one-time…

Vulnerability Exploitation & Privilege Escalation

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B
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C
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D
90% (26)

Explanation

In the Windows version of Netcat (nc.exe), -L (uppercase) is the 'Listen harder' flag - it puts Netcat into persistent listener mode, meaning it automatically restarts and waits for a new connection after the current one is terminated. The lowercase -l simply opens a one-time listener that exits after the first connection closes. -p specifies the port number, and -u switches Netcat to UDP mode instead of TCP.

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#netcat#listener mode#persistence#backdoor

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