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Operating Systems Practice Questions – Page 2 | PariksaHub

Practice/Computer Science/Operating Systems

Operating SystemsPractice Questions

Practice Operating Systems multiple-choice questions from Computer Science. Choose an answer and review the result and available explanations.

Question 11 of 20

What is the difference between a process and a thread?

Processes share memory, threads do not

Threads share memory, processes have separate memory

Threads cannot execute concurrently

Processes are lighter than threads

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Question 12 of 20

Which of the following is an example of a non-preemptive scheduling algorithm?

Round Robin

FCFS

Shortest Remaining Time

Priority (preemptive)

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Question 13 of 20

Which page replacement algorithm replaces the page that has not been used for the longest time?

FIFO

LRU

Optimal

Random

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Question 14 of 20

Which of the following is true about semaphores?

Used for process synchronization

Only used in single-threaded processes

Cannot be binary

Only increment operations allowed

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Question 15 of 20

What is thrashing in OS?

Excessive paging leading to low CPU utilization

Process blocking

Deadlock

Hardware failure

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Question 16 of 20

What type of OS is used in embedded systems?

Batch OS

Real-time OS

Time-sharing OS

Network OS

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Question 17 of 20

What is the main purpose of a device driver?

Translate high-level programs to machine code

Facilitate communication between OS and hardware devices

Control CPU scheduling

Allocate virtual memory

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Question 18 of 20

What is the primary use of a file system?

Manage memory

Manage I/O devices

Organize and store files on disk

Schedule CPU

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Question 19 of 20

Which of the following is a critical section problem solution?

FCFS

Semaphore

Paging

File system

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Question 20 of 20

Which of the following is an example of a kernel mode operation?

Writing a text file in Word

Allocating memory using malloc

Context switching between processes

Printing a document using application

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