Practice operating-system Quizzes
Master operating-system with simple, engaging quizzes designed to make learning fun and productive. Whether preparing for exams or revising core concepts, these quizzes offer instant results, clear explanations and a structured way to build confidence and strengthen your foundation.
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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"?
1
Perform calculations
2
Create websites
3
Manage hardware and software resources
4
Develop applications
Question 2
Which of the following is NOT an operating system?
1
Oracle
2
macOS
3
Linux
4
Windows
Question 3
Which of the following is an example of a real-time operating system?
1
RTOS (Real-Time Operating System)
2
Linux Ubuntu
3
macOS
4
Windows 10
Question 4
What is the function of a kernel in an operating system?
1
Provides a graphical interface
2
Stores user files
3
Manages system calls and resources
4
Compiles application code
Question 5
Which scheduling algorithm is used in time-sharing systems?
1
First-Come, First-Served (FCFS)
2
Round Robin (RR)
3
Shortest Job Next (SJN)
4
Priority Scheduling
Question 6
What is thrashing in an operating system?
1
A technique to enhance CPU performance
2
A method for optimizing memory usage
3
The process of terminating a program
4
Excessive swapping of processes between RAM and disk
Question 7
What is virtual memory?
1
A cache memory for fast processing
2
The physical memory of a system
3
A part of hard disk used as RAM
4
A memory management technique that provides an illusion of a larger RAM
Question 8
Which of the following is NOT an active process scheduling state?
1
Blocked
2
Running
3
Terminated
4
Ready
Question 9
Which file system is used by Windows operating systems?
1
Both FAT32 and NTFS
2
FAT32
3
ext4
4
NTFS
Question 10
What is the purpose of a device driver?
1
To enhance the CPU speed
2
To execute application programs
3
To allow the OS to communicate with hardware
4
To manage user permissions
Question 11
Which of the following is an example of a network operating system?
1
Windows 7
2
Windows Server
3
MS-DOS
4
Linux
Question 12
What is the primary function of the bootloader?
1
Manage disk partitions
2
Execute application programs
3
Detect hardware failures
4
Load the operating system into memory
Question 13
What is the main advantage of a multi-user operating system?
1
Faster execution of programs
2
It does not need scheduling
3
Supports multiple users accessing the system simultaneously
4
Requires less hardware resources
Question 14
What is the difference between paging and segmentation?
1
Paging reduces fragmentation, segmentation increases it
2
Paging is slower than segmentation
3
Paging divides memory into fixed-size blocks, segmentation divides it into variable-size blocks
4
Segmentation is used only in UNIX systems
Question 15
Which of the following is NOT a type of operating system?
1
Distributed OS
2
Time-sharing OS
3
Batch OS
4
Compiler OS
Question 16
Which process scheduling algorithm is starvation-free?
1
First-Come, First-Served (FCFS)
2
Shortest Job Next (SJN)
3
Round Robin
4
Priority Scheduling
Question 17
What is the function of a semaphore in an operating system?
1
Deadlock detection
2
Process synchronization
3
Disk scheduling
4
Memory management
Question 18
What is a deadlock?
1
A situation where processes are waiting for each other indefinitely
2
A method of memory allocation
3
A situation where a process executes continuously
4
A type of file management system
Question 19
What is the Banker’s algorithm used for?
1
Memory allocation
2
Process scheduling
3
Deadlock avoidance
4
Disk scheduling
Question 20
What is swapping in an operating system?
1
Exchanging registers between CPU and memory
2
Terminating processes when memory is full
3
Moving processes between main memory and disk
4
Exchanging data between two processes
Question 21
Which of the following is an example of a distributed operating system?
1
MS-DOS
2
Amoeba
3
Windows 10
4
Linux Mint
Question 22
What is the main advantage of using a spooling system in OS?
1
Faster memory access
2
Allows multiple processes to use I/O devices efficiently
3
Reduces power consumption
4
Increases CPU clock speed
Question 23
In which memory allocation technique does the process get the largest available block?
1
First Fit
2
Best Fit
3
Worst Fit
4
Next Fit
Question 24
What is the purpose of RAID in operating systems?
1
Provide redundancy and performance in storage systems
2
Increase RAM speed
3
Reduce CPU usage
4
Improve file compression
Question 25
Which of the following techniques is used to prevent deadlock?
1
Mutual exclusion
2
Resource allocation graph with a cycle
3
Hold and wait
4
Circular wait
Question 26
Which memory management technique suffers from external fragmentation?
1
Demand paging
2
Paging
3
Virtual memory
4
Segmentation
Question 27
In multi-threading, which model allows user threads to be mapped to multiple kernel threads?
1
Many-to-Many Model
2
One-to-One Model
3
Single-Thread Model
4
Many-to-One Model
Question 28
Which page replacement algorithm suffers from Belady's Anomaly?
1
Optimal Page Replacement
2
FIFO
3
Least Frequently Used (LFU)
4
LRU
Question 29
What is the main function of an interrupt in an operating system?
1
Allocate memory
2
Handle asynchronous events
3
Execute user programs
4
Optimize CPU scheduling
Question 30
What is the fork() system call used for in Unix/Linux?
1
To execute system commands
2
To allocate memory
3
To terminate a process
4
To create a new process