Which component results from this operation?

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?
A . parent directory name of a file pathname
B . process spawn scheduled
C . macros for managing CPU sets
D . new process created by parent process

View Answer

Answer: D

Explanation:

There are two tasks with specially distinguished process IDs: swapper or sched has process ID 0 and is responsible for paging, and is actually part of the kernel rather than a normal user-mode process. Process ID 1 is usually the init process primarily responsible for starting and shutting down the system. Originally, process ID 1 was not specifically reserved for init by any technical measures: it simply had this ID as a natural consequence of being the first process invoked by the kernel. More recent Unix systems typically have additional kernel components visible as ‘processes’, in which case PID 1 is actively reserved for the init process to maintain consistency with older systems