Multiple choice

PID is used by the system to identify

  1. a process

  2. the file name

  3. the i-node

  4. all of the above

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

PID (Process IDentifier) uniquely identifies each running process in the system. It's used by the kernel for scheduling, resource management, and inter-process communication. Filenames use pathnames, inodes use inode numbers. 'All of the above' is incorrect.