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