Operating Systems · Question 20 · Easy
In UNIX and Linux, which system call creates a new process that is a copy of the calling process?
- exec()
- wait()
- exit()
- fork()
Answer and explanation
Answer: D. fork()
Explanation: fork() creates a child process that is a duplicate of the parent. exec() replaces the current process image with a new program, and wait() makes a parent wait for a child to finish.
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