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System Programming Quiz System Programming

If a process has locked a System V Semaphore and receives a SIGKILL signal, which of the following is true?

The process can catch the signal and drop the semaphore before terminating.
The process terminates without releasing the semaphore.
The semaphore is released if the process had specified SEM_UNDO during creation.
The signal is deferred until the semaphore is released.

Answer:
The process terminates without releasing the semaphore.
The semaphore is released if the process had specified SEM_UNDO during creation.

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