A system administrator has identified that a process with PID 2501 is unresponsive and needs to be terminated. The administrator must first attempt to terminate the process gracefully to allow it to perform cleanup operations. If the process does not terminate after the initial attempt, it must be forcefully stopped. Which of the following commands should the administrator execute first?
The correct command to initiate a graceful termination is kill -15 2501. The kill command, by default, sends signal 15 (SIGTERM), which is a request for the process to shut down cleanly, allowing it to close files and save its state. If the process does not respond to SIGTERM, the administrator can then use kill -9 2501. Signal 9 (SIGKILL) is a non-ignorable signal that forces the kernel to terminate the process immediately, without giving it a chance to clean up. kill -1 2501 sends SIGHUP, which typically instructs a process to reload its configuration, not terminate. kill -s STOP 2501 or kill -19 2501 would pause the process but not terminate it.
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What is the difference between SIGTERM and SIGKILL in process management?
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What is the purpose of SIGHUP in process management, and how is it different from SIGTERM?
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When would you use `kill -s STOP` (SIGSTOP) instead of SIGTERM or SIGKILL?
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CompTIA Linux+ XK0-006 (V8)
Services and User Management
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