Multiple choice

The PID of kernel process is

  1. undefined

  2. 0

  3. 1

  4. 3

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In Unix, the kernel process (the scheduler) has PID 0. The init process, which is the first user-space process, has PID 1. PID 0 is reserved for the kernel and is not a regular process.