#1 Operating System Test - 69+ MCQs: Operating System Quiz: Test Your Knowledge with Operating System Questions and Answers

1. What is a 'kernel' in the context of operating systems?

The outermost layer of an OS

A type of computer virus

The central component that manages hardware and provides services to software

A user interface element

2. Which component of the operating system is responsible for managing memory?

Kernel

Compiler

Scheduler

File system

3. In the context of operating systems, what does 'CLI' stand for?

Common Language Interface

Command Line Interface

Control Language Interpreter

Computer Language Interface

4. What is the purpose of a file system in an operating system?

To store and organize data files

To control the computer's power supply

To manage the CPU's clock speed

To connect to the internet

5. What is 'system call' in the context of operating systems?

A call for technical support

A request for a system upgrade

An interface for applications to request services from the operating system

A call made to report system errors

6. Which operating system is commonly used on Apple Macintosh computers?

Windows

Linux

iOS

macOS

7. What is the purpose of a 'scheduler' in an operating system?

To schedule software updates

To manage appointments and calendars

To allocate CPU time to different tasks

To control screen brightness

8. Which operating system is open-source and often used in servers and embedded systems?

Windows

macOS

Linux

Android

9. What is 'virtual memory' in an operating system?

A memory card used in virtual reality gaming

A feature that allows multiple operating systems to run simultaneously

A technique that uses disk space to simulate additional RAM

A type of memory used in graphics processing units (GPUs)

10. What is the purpose of the 'registry' in the Windows operating system?

To store user passwords

To maintain a record of all file changes

To store system configuration settings

To store software installation files

11. What is a 'process' in the context of operating systems?

A program in execution

A type of computer virus

A peripheral device

A system configuration file

12. What does 'BIOS' stand for in the context of computer systems?

Basic Input/Output System

Binary Input/Output System

Biometric Identification Operating System

Backup and Information Organization System

13. What is the role of an interrupt in an operating system, and how does it affect system performance?

An interrupt is a signal generated by hardware or software to request the immediate attention of the CPU. It affects system performance by allowing the CPU to respond quickly to events and perform tasks efficiently.

An interrupt is a type of error that slows down system performance.

An interrupt is a message from the user to the operating system to stop all tasks.

An interrupt is a signal to restart the computer.

14. Which component of an operating system's user interface allows users to interact with files and folders?

Task Manager

Control Panel

File Explorer (or File Manager)

Start Menu

15. Which operating system is often used in scientific and supercomputing applications?

Windows

Linux

macOS

Android

16. What is 'RAID' in the context of storage management in operating systems?

A type of computer virus

A technique for data backup

A system for controlling external devices

A method of combining multiple disks to improve performance and redundancy

17. Which operating system is known for its use in Google's mobile devices like smartphones and tablets?

Windows

Linux

iOS

Android

18. What is the difference between a process and a thread in an operating system?

A process is a standalone program with its own memory space, while a thread is a smaller unit of a process that shares the same memory space as other threads in the same process.

A process and a thread are the same thing; the terms are used interchangeably.

A process is a collection of threads, and a thread is a collection of processes.

A process and a thread both refer to the same concept in an operating system.

19. What is a deadlock in an operating system, and how can it be resolved?

A deadlock is a situation where two or more processes are unable to proceed because each is waiting for the other to release a resource. It can be resolved using techniques like deadlock detection and recovery or preventing the conditions that lead to deadlocks.

A deadlock is a lock that cannot be opened. It can be resolved by breaking the lock.

A deadlock is a situation where a system is completely frozen and cannot be resolved.

A deadlock is a type of error that cannot be resolved.

20. What is the primary function of an operating system?

Running applications

Managing hardware resources

Displaying graphical user interfaces

Sending emails

Operating System MCQ Test 4