Question

Every process has a parent process.

(a) True

(b) False

I have been asked this question during an interview.

This interesting question is from Process Basics in portion The Process of Unix

Answer 1

Right option is (a) True

To explain: Just like a file has a parent, every process also has the same.  The parent is also a process and the process born from it is called child process. For example, when we run the cat command a process representing the cat command is started by the shell process. The process started by the shell is called child process and the shell (which could be sh, ksh or any other) is the parent process.