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