Free Mock Test : Operating System : Process Management (Test 4)

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Free Mock Test - Operating System : Process Management (Test 4)

Process management is one of the core functions of an operating system, responsible for handling the creation, scheduling, execution, and termination of processes. A process is a program in execution, and the operating system ensures that multiple processes run efficiently without conflict.
For online tests and competitive exams, understanding process management is very important because it forms the foundation of how computers operate internally. Questions often test concepts like process scheduling, context switching, and CPU utilization, which are essential topics in computer science exams such as BCA, B.Tech, and government IT exams. For students, learning process management improves logical thinking and helps them understand real-world system behavior, making them better prepared for technical interviews and practical applications in software development and system design.

Total Questions : 20

Timer : sec

Question : The scheduler that selects processes from the ready queue is called:

Long-term scheduler

Short-term scheduler

Medium-term scheduler

Job scheduler

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Question : Response time is defined as:

Time from arrival to completion

Time from arrival to first CPU allocation

Time spent waiting in queue

Time spent executing

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Question : Waiting time can be calculated using:

Waiting Time = Turnaround Time – Burst Time

Waiting Time = Burst Time – Turnaround Time

Waiting Time = Completion Time – Burst Time

Waiting Time = Arrival Time – Completion Time

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Question : Turnaround time is calculated as:

Burst Time – Waiting Time

Completion Time – Arrival Time

Waiting Time – Burst Time

Arrival Time – Completion Time

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Question : Completion time is defined as:

Time when process starts execution

Time when process finishes execution

Time when process enters ready queue

Time when process waits for CPU

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Question : Burst time represents:

Waiting time of a process

Total CPU execution time required by a process

Time spent in I/O

Response time

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Question : Arrival time of a process refers to:

Time when process starts execution

Time when process enters the ready queue

Time when process completes execution

Time when process enters memory

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Question : The ready queue is maintained in:

Secondary memory

Main memory

CPU registers

Cache memory

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Question : Which queue may exist for each I/O device?

Ready queue

Job queue

Device queue

CPU queue

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Question : If an interrupt occurs during execution, the process may:

Terminate

Move back to ready queue

Move to job queue

Stay running

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Question : A process moves from the ready queue to running state when:

I/O completes

Scheduler assigns CPU

Process terminates

Device becomes free

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Question : The PCB of a process is stored in:

CPU register

Process queue

Cache memory

Disk sector

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Question : Device queues are used for processes:

Ready to execute

Waiting for I/O devices

Terminated processes

Completed jobs

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Question : Which queue contains processes waiting for I/O operations?

Job Queue

Ready Queue

Waiting Queue

Ready List

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Question : Which scheduler selects a process from the ready queue?

Long-term scheduler

Short-term scheduler

Medium-term scheduler

I/O scheduler

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Question : Which queue contains processes waiting for CPU execution?

Waiting Queue

Ready Queue

Job Queue

Device Queue

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Question : Which scheduler selects processes from the job queue?

Short-term scheduler

Medium-term scheduler

Long-term scheduler

I/O scheduler

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Question : The job queue is typically stored in:

CPU registers

Main memory

Secondary memory (disk)

Cache

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Question : Which queue contains all processes in the system initially?

Ready Queue

Waiting Queue

Job Queue

Device Queue

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Question : In an operating system, process queues are used to:

Store files

Manage process states and scheduling

Store memory addresses

Compile programs

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