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Question 89/140
A developer is working on a project using a Linux tool that enables writing processes to obtain these required results:
If the process is unsuccessful, a negative value is returned.
If the process is successful, 0 value is returned to the child process, and the process ID is sent to the parent process.
Which component results from this operation?
If the process is unsuccessful, a negative value is returned.
If the process is successful, 0 value is returned to the child process, and the process ID is sent to the parent process.
Which component results from this operation?
Correct Answer: D
The operation described is characteristic of the fork() system call in Linux, which is used to create a new process. The fork() system call generates a new process by duplicating the calling (parent) process. If the fork() is successful, the PID of the child process is returned to the parent process, and a 0 value is returned to the child process. If unsuccessful, a negative value is returned2.
Reference:
How to create a process in Linux? - Online Tutorials Library
Reference:
How to create a process in Linux? - Online Tutorials Library
- Question List (140q)
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