Question 1

What is a context switch?
A)kernel switches from executing one process to another.
B)process switches from kernel mode to user mode.
C)process switches from user mode to kernel mode.
D)none of the above

Accepted Answer

A context switch refers to the kernel's operation of switching the CPU from executing one process to another, saving the state of the old process and loading the saved state of the new process to resume its execution.

Question 2

Pid of init process
A)0
B)1
C)32767
D)none of the above

Accepted Answer

The init process, which is the first process started by the Linux kernel and has a process ID (PID) of 1, is responsible for starting all other processes.

Question 3

How do you get parent process identification number?
A)waitpid
B)getpid()
C)getppid()
D)parentid()

Accepted Answer

The correct function to get the parent process identification number in most Unix-like operating systems, including Linux, is `getppid()`.

Quiz 3: Unix Commands and File System Structure

What is a context switch?

Pid of init process

How do you get parent process identification number?