Question

Which of the following serves as the root parent process of all the user processes?

• A. root process
• B. parent process
• C. init process
• D. boot process

Hint:

The init process (PID 1) is the first process created by the kernel and serves as the root parent process for all user processes in Unix/Linux systems.

Answer 1

The Correct Option is C

Step 1: Understanding Process Hierarchy
- In Unix/Linux-based systems, all user processes originate from a common ancestor.
- This process is known as the init process, which has PID 1.
Step 2: Role of the init Process
- init is the first process started by the kernel after booting.
- It is responsible for starting system services and spawning all user processes.
- All other processes are its children either directly or indirectly.
Step 3: Evaluating the Options
- (A) Incorrect: The root process does not exist as a specific system process.
- (B) Incorrect: A parent process refers to any process that spawns child processes, but not necessarily the root of all.
- (C) Correct: The init process (PID 1) is the root parent process of all user processes.
- (D) Incorrect: The boot process refers to the system startup sequence, not a specific parent process.