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Question

PID of the kernel process is

A
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B
0
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C
1
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D
3
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Solution

The correct option is B 0

PID of the kernel process is 0.

There are two tasks with especially 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.

The process identifier (PID) is a number used by most operating system kernels such as those of UNIX, mac OS and Microsoft windows to uniquely identify an active process.

Process 0is a special process that is created when the system boots; after forking a child process (process 1), process 0 becomes the swapper process.



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