Question

To override the default action and catch the signal ____ system call is used.

(a) sig

(b) SIGKILL

(c) signal

(d) SIGINT

This question was posed to me during an online interview.

The doubt is from Performance Components and Tools topic in section System Programming II – Process Control & Unix System Performance of Unix

Answer 1

Correct answer is (c) signal

To explain I would say: The default disposition of a signal is to terminate the process. However, we can override the default action and catch the signal using system call using the signal system call. Using signal system call.