A process with PID 4021 is ignoring SIGTERM. Type the complete command that forcibly terminates it with the signal that cannot be caught or ignored.
LPIC-1 Exam 101-500, objective 103. GNU and Unix commands medium
Machine-checked — no person has signed for it. This question was read against the source cited below by an automated pass, which found no contradiction. That is a weaker claim than it sounds: the same kind of process wrote the question, so it can confirm its own mistake.
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How these questions are written — where each question comes from, what the verification ledger records, and what happens when one is found wrong.
Answer
Type the answer.
Accepted answers
kill -9 4021kill -KILL 4021kill -SIGKILL 4021kill -s 9 4021kill -n 9 4021kill -s KILL 4021kill -s SIGKILL 4021
Case sensitive — Linux is, and grading LS as ls would teach a falsehood.
Why
SIGKILL is signal 9, so `kill -9 4021` is the usual form; `kill -KILL 4021` and `kill -s KILL 4021` are equivalent (bash's builtin also accepts `kill -n 9`). Use it only after SIGTERM has failed, because the process gets no opportunity to flush data or remove lock files.
Where this comes from
- Cited
- LPI exam objective 103.5
- What it says
- Send a specific signal to a process by PID.
Practise this
Reading one question is not practice. The trainer will draw a short set from objective 103 and space the ones you get wrong.
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