Operating System Certification Practice Quiz

1. In memory management, what is virtual memory used for?

Storing temporary files on the hard drive

Extending available RAM by using disk space as additional memory

Encrypting sensitive data in RAM

Allocating memory to virtual machines only

2. Which memory type is fastest but has the smallest capacity in a typical computer?

RAM

Cache

Hard drive

SSD

3. What is the main advantage of using a microkernel architecture?

It combines all OS functions into a single large kernel

It provides better modularity and improved system reliability

It eliminates the need for device drivers

It increases system performance automatically

4. Which of the following best describes the primary function of a kernel in an operating system?

Managing user applications and graphical interfaces

Controlling hardware resources and managing process execution

Storing permanent data on disk drives

Compiling source code into executable programs

5. Which scheduling algorithm gives each process a fixed time slice to execute?

First Come First Served

Priority Scheduling

Round Robin

Shortest Job First

6. What does NTFS stand for in Windows operating systems?

New Technology File System

Network Transfer File Structure

Non-Temporal File Storage

Native Task File System

7. In Linux, which command is used to change file permissions?

Chown

Chmod

Chgrp

Chdir

8. What is a deadlock in operating systems?

A situation where two or more processes are blocked waiting for each other

A permanent halt of the entire system

A process that consumes excessive CPU resources

An error in the file system structure

9. What is the primary function of an interrupt handler in an OS?

Preventing user access to system resources

Responding to hardware or software signals and executing appropriate code

Compressing data stored on disk

Managing network bandwidth allocation

10. In access control, what does ACL stand for?

Application Control List

Access Control List

Advanced Cryptography Layer

Automatic Cache Loading

11. Which of the following best describes the role of a boot loader?

Managing user authentication and permissions

Loading the kernel into memory and starting the OS

Optimizing application performance

Monitoring system resources in real-time

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

Managing network connections and protocols

Organizing and storing data on storage devices

Processing user input from keyboards and mice

Running background system services

13. Which of the following is a characteristic of multithreading?

Multiple processes run on separate processors only

Multiple threads within a process share the same memory space

Each thread requires its own separate kernel

Threads cannot communicate with each other

14. In Windows, which tool is used to manage system services and startup programs?

Device Manager

Task Manager

Services application

Event Viewer

15. What is the primary purpose of paging in memory management?

Creating backup copies of active files

Dividing memory into fixed-size pages for efficient allocation

Preventing unauthorized access to data

Optimizing CPU cache performance