Home » Cisco » 200-201 v.2 » 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
Correct Answer: D
Explanation/Reference:
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
