Practice operating-system Quizzes

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Learn operating-system step by step with interactive quizzes designed for beginners and learners revising key concepts. Build a strong foundation with clear, structured practice in operating-system.

Question 1

What is the purpose of the "Operating System"?

Perform calculations

Create websites

Develop applications

Manage hardware and software resources

Question 2

Which of the following is NOT an operating system?

Windows

Oracle

macOS

Linux

Question 3

Which of the following is an example of a real-time operating system?

RTOS (Real-Time Operating System)

Windows 10

Linux Ubuntu

macOS

Question 4

What is the function of a kernel in an operating system?

Provides a graphical interface

Stores user files

Manages system calls and resources

Compiles application code

Question 5

Which scheduling algorithm is used in time-sharing systems?

Round Robin (RR)

Priority Scheduling

First-Come, First-Served (FCFS)

Shortest Job Next (SJN)

Question 6

What is thrashing in an operating system?

A method for optimizing memory usage

A technique to enhance CPU performance

Excessive swapping of processes between RAM and disk

The process of terminating a program

Question 7

What is virtual memory?

A cache memory for fast processing

A part of hard disk used as RAM

A memory management technique that provides an illusion of a larger RAM

The physical memory of a system

Question 8

Which of the following is NOT an active process scheduling state?

Ready

Terminated

Blocked

Running

Question 9

Which file system is used by Windows operating systems?

Both FAT32 and NTFS

FAT32

NTFS

ext4

Question 10

What is the purpose of a device driver?

To enhance the CPU speed

To allow the OS to communicate with hardware

To execute application programs

To manage user permissions

Question 11

Which of the following is an example of a network operating system?

Windows 7

Linux

MS-DOS

Windows Server

Question 12

What is the primary function of the bootloader?

Execute application programs

Load the operating system into memory

Detect hardware failures

Manage disk partitions

Question 13

What is the main advantage of a multi-user operating system?

Faster execution of programs

Requires less hardware resources

It does not need scheduling

Supports multiple users accessing the system simultaneously

Question 14

What is the difference between paging and segmentation?

Paging is slower than segmentation

Paging divides memory into fixed-size blocks, segmentation divides it into variable-size blocks

Paging reduces fragmentation, segmentation increases it

Segmentation is used only in UNIX systems

Question 15

Which of the following is NOT a type of operating system?

Compiler OS

Batch OS

Time-sharing OS

Distributed OS

Question 16

Which process scheduling algorithm is starvation-free?

Shortest Job Next (SJN)

First-Come, First-Served (FCFS)

Round Robin

Priority Scheduling

Question 17

What is the function of a semaphore in an operating system?

Disk scheduling

Deadlock detection

Memory management

Process synchronization

Question 18

What is a deadlock?

A situation where a process executes continuously

A method of memory allocation

A situation where processes are waiting for each other indefinitely

A type of file management system

Question 19

What is the Banker’s algorithm used for?

Memory allocation

Deadlock avoidance

Process scheduling

Disk scheduling

Question 20

What is swapping in an operating system?

Terminating processes when memory is full

Exchanging registers between CPU and memory

Exchanging data between two processes

Moving processes between main memory and disk

Question 21

Which of the following is an example of a distributed operating system?

Linux Mint

Windows 10

MS-DOS

Amoeba

Question 22

What is the main advantage of using a spooling system in OS?

Allows multiple processes to use I/O devices efficiently

Increases CPU clock speed

Reduces power consumption

Faster memory access

Question 23

In which memory allocation technique does the process get the largest available block?

Worst Fit

Next Fit

Best Fit

First Fit

Question 24

What is the purpose of RAID in operating systems?

Increase RAM speed

Improve file compression

Reduce CPU usage

Provide redundancy and performance in storage systems

Question 25

Which of the following techniques is used to prevent deadlock?

Resource allocation graph with a cycle

Hold and wait

Circular wait

Mutual exclusion

Question 26

Which memory management technique suffers from external fragmentation?

Virtual memory

Paging

Demand paging

Segmentation

Question 27

In multi-threading, which model allows user threads to be mapped to multiple kernel threads?

Many-to-Many Model

Single-Thread Model

Many-to-One Model

One-to-One Model

Question 28

Which page replacement algorithm suffers from Belady's Anomaly?

LRU

Least Frequently Used (LFU)

FIFO

Optimal Page Replacement

Question 29

What is the main function of an interrupt in an operating system?

Handle asynchronous events

Optimize CPU scheduling

Execute user programs

Allocate memory

Question 30

What is the fork() system call used for in Unix/Linux?

To create a new process

To terminate a process

To allocate memory

To execute system commands