Operating System MCQ
Operating System MCQ Questions are essential for anyone looking to deepen their understanding of core OS concepts. These multiple-choice questions cover key topics such as process management, memory management, file systems, concurrency, and security. Whether you are preparing for exams, technical interviews, or simply seeking to reinforce your knowledge, these MCQs will help you master the principles of operating systems. Perfect for students and professionals alike, these questions will enhance your problem-solving skills and provide a comprehensive understanding of OS functionality.
Q1. Which of the following is an example of an operating system?
A. MS Word
B. Windows
C. Oracle
D. Google Chrome
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Q2. Which operating system is open source?
A. Windows
B. Linux
C. macOS
D. MS-DOS
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Q3. The kernel of an OS is responsible for:
A. User interface
B. Process management
C. Word processing
D. Database storage
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Q4. Which scheduling algorithm gives priority to the process that arrives first?
A. Shortest Job Next
B. Priority Scheduling
C. First Come First Serve
D. Round Robin
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Q5. Which scheduling algorithm uses time quantum?
A. Round Robin
B. FCFS
C. SJF
D. Priority
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Q6. What is the main function of device drivers?
A. To manage application programs
B. To manage memory
C. To control hardware devices
D. To compile programs
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Q7. In OS, thrashing is related to:
A. CPU overuse
B. Excessive paging
C. Power failure
D. Deadlock
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Q8. Which of the following is NOT an OS?
A. Linux
B. Windows
C. C++
D. Android
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Q9. Which memory is non-volatile and stores the OS permanently?
A. RAM
B. ROM
C. Cache
D. Register
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Q10. What does multitasking mean in operating systems?
A. Using multiple CPUs
B. Running multiple processes simultaneously
C. Using multiple OS at once
D. Using multiple monitors
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Q11. Which operating system is mainly used in mobile devices?
A. Linux
B. Windows
C. Android
D. Unix
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Q12. Which type of OS is used in real-time applications?
A. Batch OS
B. Time-sharing OS
C. Real-time OS
D. Distributed OS
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Q13. Which command is used in Linux to list files?
A. ls
B. dir
C. list
D. show
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Q14. Which part of the OS manages file storage and retrieval?
A. Kernel
B. File system
C. Shell
D. Cache
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Q15. Which system call creates a new process in Unix/Linux?
A. fork()
B. create()
C. new()
D. spawn()
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Q16. What is a deadlock in OS?
A. A process waiting forever due to resource holding
B. CPU overload
C. OS crash
D. Network failure
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Q17. Which memory management technique divides memory into fixed-size blocks?
A. Paging
B. Segmentation
C. Swapping
D. Fragmentation
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Q18. Which file system is commonly used in Windows?
A. ext4
B. NTFS
C. FAT32
D. HFS+
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Q19. Which OS feature allows multiple users to use the same computer at the same time?
A. Multithreading
B. Multiprocessing
C. Multiuser
D. Distributed
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Q20. Which of these is a Linux distribution?
A. Ubuntu
B. MS-DOS
C. Windows 11
D. Solaris
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