What is the role of the 'init' process in Linux? MCQ with Answer and Explanation

Question
What is the role of the 'init' process in Linux?
A. It manages device drivers
B. It handles user login
C. It schedules tasks
D. It is the first process started by the kernel and parent of all other processes
Answer: Option D
Solution (By JKSSB Mock Tests)
The init process (PID 1) is the first user-space process and is responsible for starting system services and daemons.
This question belongs to: Computer Operating Systems
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Question #1
Which Linux file directory typically contains all system binary executable files required for basic administration and user operations?
A. /dev
B. /etc
C. /bin
D. /var
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Correct Answer: Option C

Explanation:
The '/bin' directory stands for binaries and contains fundamental executable command programs like ls, cp, and mv needed across the system.
This question belongs to: Computer Operating Systems
Question #2
In Linux, the 'at' command is used to:
A. Schedule a job to run once at a specified time
B. List scheduled jobs
C. Run jobs immediately
D. Schedule recurring jobs
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Correct Answer: Option A

Explanation:
at schedules one-time tasks; cron is for recurring jobs; atq lists pending at jobs.
This question belongs to: Computer Operating Systems
Question #3
What does 'Preemptive Multitasking' ensure across system workloads?
A. The operating system slices execution chunks using hardware clock signals to interrupt running tasks fairly.
B. Applications determine exactly when they give up processor time voluntarily.
C. Hardware operates without an active process scheduler scheduler.
D. Only one single system task can execute per computer restart cycle.
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Correct Answer: Option A

Explanation:
Preemptive multitasking uses hardware timer interrupts to halt running tasks, preventing any single application from locking up the machine.
This question belongs to: Computer Operating Systems
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