Operating System MCQ with Answers

Operating System MCQ with Answers
Are you preparing for an operating system interview or simply looking to test your knowledge of operating systems? Well, you’re in luck! In this blog post, we will cover the top 20 multiple-choice questions (MCQs) on operating systems (Operating System MCQ with Answer) along with their answers. So, let’s dive in and test your understanding of this critical area of computer science!
Operating System MCQ with Answers
Question 1. What is an operating system?
- Â Software that manages computer hardware and software resources
- A collection of computer programs that perform specific tasks
- A type of computer hardware
- A programming language
Answer: a) Software that manages computer hardware and software resources
Question 2. What is the primary function of an operating system?
- To provide a user interface for interacting with the computer
- To manage hardware resources like CPU, memory, and I/O devices
- To provide data storage and retrieval services
- To compile and execute programs
Answer: b) To manage hardware resources like CPU, memory, and I/O devices
Question 3. Which of the following is not an example of an operating system?
- Windows
- MacOS
- Microsoft Office
- Linux
Answer: c) Microsoft Office
Question 4. Which scheduling algorithm gives each process an equal amount of time to execute?
- First-Come, First-Served (FCFS)
- Round Robin
- Priority Scheduling
- Shortest Job Next (SJN)
Answer: b) Round Robin
Question 5. What is the purpose of virtual memory in an operating system?
- To provide additional storage space for user files
- To store frequently used files for faster access
- To enable multiple processes to share the same physical memory
- To provide a backup of system files
Answer: c) To enable multiple processes to share the same physical memory
Question 6. Which file system is used in Windows operating systems?
- Â NTFS
- HFS+
- Ext4
- FAT32
Answer: a) NTFS
Question 7. What is the role of a device driver in an operating system?
- To manage the execution of processes
- To provide an interface for users to interact with the computer
- To manage system resources like CPU and memory
- To enable communication between the operating system and hardware devices
Answer: d) To enable communication between the operating system and hardware devices
Question 8. Which of the following is an example of a real-time operating system?
- Windows
- Linux
- MacOS
- VxWorks
Answer: d) VxWorks
Question 9. What is the purpose of a system call in an operating system?
- To execute a user program
- To allocate memory to a process
- To provide services to user programs
- To terminate a process
Answer: c) To provide services to user programs
Question 10. What is the main advantage of multi-threading in an operating system?
- Â Faster execution of programs
- Better memory management
- Improved process synchronization
- Enhanced user interface
Answer: a) Faster execution of programs
Operating System MCQ with Answers
Question 11. Which of the following is an example of a non-volatile storage device?
- RAM
- Cache
- Hard disk
- CPU
Answer: c) Hard disk
Question 12. What is the function of a page table in a virtual memory system?
- To store the contents of all pages in main memory
- To translate virtual addresses to physical addresses
- To allocate memory to processes
- To manage system processes
Answer: b) To translate virtual addresses to physical addresses
Question 13. Which scheduling algorithm selects the process with the smallest burst time first?
- Shortest Job Next (SJN)
- First-Come, First-Served (FCFS)
- Priority Scheduling
- Round Robin
Answer: a) Shortest Job Next (SJN)
Question 14. What is the purpose of a bootloader in an operating system?
- To load the operating system into memory during system startup
- To manage the user interface of the operating system
- To allocate system resources to processes
- To schedule processes for execution
Answer: a) To load the operating system into memory during system startup
Question 15. Which of the following is not a type of process state in an operating system?
- Running
- Ready
- Terminated
- Â Suspended
Answer: c) Terminated
Question 16. What is the role of a cache in an operating system?
- To store frequently used files for faster access
- To provide a backup of system files
- To allocate memory to processes
- To manage the user interface of the operating system
Answer: a) To store frequently used files for faster access
Question 17. What is the purpose of an interrupt in an operating system?
- To terminate a process
- To allocate memory to a process
- To handle hardware events or exceptions
- To schedule processes for execution
Answer: c) To handle hardware events or exceptions
Question 18. Which of the following is not a type of file system in Linux?
- FAT32
- Ext4
- XFS
- Btrfs
Answer: a) FAT32
Question 19. What is the main purpose of a semaphore in process synchronization in an operating system?
- To allocate memory to processes
- To manage the user interface of the operating system
- To control access to shared resources
- To terminate a process
Answer: c) To control access to shared resources
Question 20. What is the function of a command interpreter in an operating system?
- To allocate memory to processes
- To manage system resources like CPU and memory
- To provide an interface for users to interact with the computer
- To schedule processes for execution
Answer: c) To provide an interface for users to interact with the computer
That wraps up our top 20 operating system MCQ questions and answers! We hope this has been a helpful resource for you to test your knowledge or prepare for an operating system-related interview. Remember to thoroughly understand the concepts behind these questions to have a solid foundation in operating systems, which is a critical aspect of computer science and IT. Good luck with your studies or interviews!
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