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____ exec is responsible for executing programs on a UNIX system.

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____ exec is responsible for executing programs on a UNIX system.

(a) True

(b) False

I have been asked this question by my school principal while I was bunking the class.

Question is from Process Control System Calls topic in portion System Programming II – Process Control & Unix System Performance of Unix

1 Answer

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Right choice is (a) True

Explanation: If we want to run a separate program in a forked process, it is done by exec. This operation replaces the entire address space with that of a new program. In other words, the fork is responsible for creating a process but it actually the exec that executes the program on a UNIX system.

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