Question

which system call is used to replace the current process image with new process image.​

Answer 1

Answer:

The fork() system call is used to create an exact copy of a running process and the created copy is the child process and the running process is the parent process. Whereas, exec() system call is used to replace a process image with a new process image.

Explanation:

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Answer 2

The exec() is used to replace the current process image with new process image.​

• Generally the exec system call replaces the specific program which is properly executed by a continuous process.
• When a process calls exec, all the coding and information in the unique process is promptly lost and replaced with the new program executable.
• To substitute the current process image with the new process image, the exec system call is typically used.
• It provides the program into the current space and executes it from the point of entry.