In simple operating system terms, which OS function decides who can use files, apps, and settings on a shared computer
A Screen rotation
B Color correction
C Access control
D Sound balancing
Note: Access control checks user permissions before allowing access to files and system settings. It protects privacy and security on shared systems by ensuring only authorized users can perform specific actions.
When a computer runs many programs smoothly without conflicts, which OS job is mainly responsible
A Image editing
B Web browsing
C Battery charging
D Resource allocation
Note: The OS allocates CPU time, memory, and device access among programs. Good allocation prevents clashes, improves performance, and keeps the system stable while many tasks run together.
Which operating system type is mainly designed for everyday personal computer use like office work and browsing
A Batch-only OS
B General-purpose OS
C Real-time OS
D Embedded-only OS
Note: A general-purpose OS supports many different applications and user tasks. It provides a flexible interface, multitasking, and broad hardware support for common daily computing needs.
Which OS type is specially optimized for touch input and battery usage in smartphones
A Batch OS
B Network OS
C Mobile OS
D Mainframe OS
Note: Mobile operating systems are built for touch screens, sensors, and power efficiency. They manage apps, connectivity, and security while using limited battery and hardware resources wisely.
Which OS type is commonly used in small devices with fixed tasks like digital cameras or smart appliances
A Embedded OS
B Desktop OS
C Distributed OS
D Batch OS
Note: Embedded operating systems run on devices made for specific functions. They are lightweight, reliable, and optimized for limited memory and processing power, often running continuously without user changes.
Which type of OS is most suitable for handling files and printers in an organization’s internal network
A Single-task OS
B Network OS
C Offline OS
D Game OS
Note: A network OS provides centralized services like user login, shared files, and printer sharing. It helps manage users, permissions, and resources across multiple computers securely.
In OS basics, which component directly manages hardware resources like CPU, memory, and devices
A Wallpaper
B Icon set
C Browser
D Kernel
Note: The kernel is the core of the operating system. It controls process scheduling, memory handling, and device communication, ensuring applications can use hardware safely and efficiently.
Which OS part is mainly used to interact with the system by typing commands
A Disk partition
B Boot sector
C Command line
D Page table
Note: The command line interface allows users to type commands to perform tasks. It is fast for administration and troubleshooting, and it supports automation through scripts and command sequences.
In a GUI, what is the purpose of menus and toolbars for a user
A Increase RAM size
B Quick access options
C Control CPU heat
D Repair hard drive
Note: Menus and toolbars provide easy access to commands and features without typing. They group functions logically, improving usability and helping users complete tasks faster.
Which GUI feature shows files and folders in a visual list with icons
A File manager
B Boot loader
C Device driver
D System call
Note: A file manager displays folders and files visually and helps users copy, move, rename, and delete items. It is the main tool for managing stored data in graphical systems.
Which term describes a running program that the OS is managing
A Directory
B Sector
C Patch
D Process
Note: A process is a program in execution, with its own memory and state. The OS schedules processes, allocates resources, and ensures they run without interfering with each other.
What is the main job of the OS scheduler in multitasking systems
A Change wallpapers
B Compress files
C Share CPU time
D Update fonts
Note: The scheduler decides which process runs next and for how long. It shares CPU time fairly, improves system responsiveness, and helps keep many applications running smoothly.
Which term best describes a smaller execution path within a process, often used for parallel work
A Folder
B Thread
C Driver
D Sector
Note: A thread is a lightweight unit of execution inside a process. Multiple threads can run tasks in parallel or near-parallel, improving speed and responsiveness in many applications.
Which memory technique divides memory into equal-sized units called pages
A Spooling
B Logging
C Patching
D Paging
Note: Paging breaks memory into fixed-size pages and frames. It reduces external fragmentation and supports virtual memory by mapping program pages into physical memory as needed.
Which OS feature lets large programs run even when RAM is limited by using disk space as support
A Screen scaling
B File locking
C Virtual memory
D Audio mixing
Note: Virtual memory uses disk space to extend RAM. The OS moves less-used pages to disk, allowing more programs to run, though heavy swapping can slow the system.
In simple file terms, what does a directory mainly contain
A CPU instructions
B File and folder list
C Internet addresses
D Printer settings
Note: A directory stores entries for files and subfolders, helping organize storage. It keeps names and links to locations, making file searching and management easier.
Which permission mainly allows viewing a file’s contents
A Read permission
B Write permission
C Execute permission
D Admin privilege
Note: Read permission allows opening and viewing file data. It does not allow editing or deleting by itself, so it helps protect important files from unwanted changes.
Which permission mainly allows changing or saving content to an existing file
A Read permission
B Execute permission
C Write permission
D Hidden attribute
Note: Write permission allows modifying file contents. Without it, a user may read a file but cannot edit or save changes, which supports controlled access in shared systems.
Which permission mainly allows running a program file as an executable
A Read permission
B Write permission
C Archive attribute
D Execute permission
Note: Execute permission allows the OS to run a file as a program or script. It helps separate normal data files from runnable files, improving control and system security.
Which term refers to special properties like hidden or read-only that affect how a file behaves
A CPU registers
B File attributes
C Network packets
D Screen pixels
Note: File attributes describe file properties such as hidden, read-only, or system. The OS uses them to control visibility and actions, helping protect important files from accidental changes.
Which startup action is called a cold boot
A Restart without power off
B Log out account
C Power on from off
D Close one program
Note: A cold boot occurs when the computer starts from a complete power-off state. Hardware performs full checks, then the system loads the operating system from the boot device.
Which startup action is called a warm boot
A Restart the system
B Replace hard disk
C Change OS theme
D Delete temp files
Note: A warm boot is a restart without turning off power fully. It reloads the OS and reinitializes system components, often used after updates or when troubleshooting problems.
Which firmware is commonly used in modern PCs instead of old BIOS
A GUI interface
B UEFI firmware
C CLI interface
D API service
Note: UEFI is modern firmware that starts hardware checks and supports advanced features like better boot management and Secure Boot. It commonly replaces older BIOS on modern computers.
Which component loads the operating system kernel during the boot process
A Task manager
B File explorer
C Disk cleanup
D Boot loader
Note: The boot loader starts after firmware initialization and loads the OS kernel into memory. It is an important step between hardware startup and the operating system taking control.
Device drivers mainly help the OS do what during normal computer use
A Create user accounts
B Write application code
C Communicate with hardware
D Encrypt all emails
Note: Device drivers act as translators between the OS and hardware devices. They allow the OS to control printers, displays, network cards, and other devices correctly.
Which mode starts the system with minimal drivers for troubleshooting difficult boot issues
A Sleep Mode
B Safe Mode
C Airplane Mode
D Game Mode
Note: Safe Mode loads only essential drivers and services. It helps fix problems caused by faulty drivers or startup programs by allowing safer access to the system for repairs.
Which OS feature can restore system settings to an earlier point after a bad update
A Disk Formatting
B File Sharing
C Task Switching
D System Restore
Note: System Restore uses restore points to roll back system files and settings. It helps recover from faulty drivers or updates, usually without deleting personal documents.
Which built-in tool commonly shows CPU and memory usage and lists running apps
A Disk Cleanup
B Control Panel
C Task Manager
D File Explorer
Note: Task Manager displays running processes and resource usage like CPU and RAM. It helps identify heavy programs, end unresponsive tasks, and monitor overall system performance.
Which tool is used to create, delete, or format disk partitions in many systems
A Disk Management
B Device Manager
C Event Viewer
D Notepad
Note: Disk Management is used to manage storage layout such as partitions and volumes. It supports formatting, assigning drive letters, and resizing partitions for better storage organization.
Which utility is best for checking installed devices and updating their drivers
A Disk Cleanup
B Device Manager
C Task Scheduler
D Calculator
Note: Device Manager lists hardware devices and shows driver status. It helps update, disable, uninstall, or troubleshoot drivers when devices are not working correctly.
Which OS tool stores system error and warning records helpful for troubleshooting
A File Explorer
B Media Player
C Paint
D Event Viewer
Note: Event Viewer stores logs of system and application events. These logs help locate causes of crashes, boot problems, and service failures with time-stamped details.
Which utility removes temporary files to free up storage space
A Device Manager
B Control Panel
C Disk Cleanup
D Task Manager
Note: Disk Cleanup removes temporary files, cache, and unused system files. It helps free disk space and can improve system maintenance by reducing unnecessary data.
A firewall mainly helps by controlling what
A Screen brightness
B Network traffic
C Keyboard layout
D Speaker volume
Note: A firewall filters incoming and outgoing network connections using rules. It helps block unauthorized access and reduces risk from network attacks, especially on public networks.
Which tool helps you create and manage user accounts on a computer
A User management
B Disk management
C Task switching
D Screen saver
Note: User management tools create accounts, set passwords, and assign privileges. This helps control access in shared computers, protecting data and preventing unauthorized system changes.
Which type of account typically has permission to install software and change system-wide settings
A Guest account
B Standard account
C Administrator account
D Temporary account
Note: Administrator accounts have elevated privileges to install apps, change system settings, and manage users. For safety, daily work is often done using a standard account instead.
System updates are mainly important for what two goals
A Fonts and colors
B Mouse and keyboard
C Paper and ink
D Security and stability
Note: Updates provide security patches and bug fixes that improve system protection and reliability. Keeping the OS updated reduces vulnerabilities and helps maintain compatibility with software and devices.
What is the main meaning of patching in operating systems
A Changing screen size
B Applying software fixes
C Printing documents
D Charging laptop battery
Note: Patching installs updates that fix security holes and software bugs. Regular patching helps protect against known threats and improves performance and stability over time.
Which background components keep essential system features working without direct user action
A System services
B Desktop icons
C File names
D Screen pixels
Note: System services run in the background to support networking, updates, printing, and security. They start automatically and help the OS function properly even when no user app is open.
Which OS concept helps stop one app crash from affecting other apps
A File compression
B Disk formatting
C Process isolation
D Screen scaling
Note: Process isolation gives each process its own protected memory space. If one program crashes, the OS can close it without stopping other programs, improving overall system stability.
Which tool is used to schedule automatic tasks like backups at set times
A Device Manager
B Disk Cleanup
C File Explorer
D Task Scheduler
Note: Task Scheduler runs programs or scripts automatically based on time or events. It helps automate maintenance tasks like backups and cleanup, reducing the need for manual repetition.
Which OS command safely turns off the computer by closing programs and services
A Copy command
B Shutdown command
C Paste command
D Search command
Note: Shutdown closes running programs, stops services, and writes pending data to disk. Proper shutdown prevents data loss and file corruption compared to forcing the power off.
Which command safely reloads the operating system without powering off fully
A Format command
B Rename command
C Print command
D Restart command
Note: Restart closes programs and reloads the OS. It is used after updates or troubleshooting and reinitializes system components, often fixing temporary issues.
Which OS concept means running more than one application at the same time
A Formatting
B Defragmenting
C Multitasking
D Encrypting
Note: Multitasking allows multiple applications to run by sharing CPU time and memory. The OS schedules processes to keep work smooth, like browsing while editing documents.
Which OS function is most directly responsible for deciding what runs automatically during startup
A Screen resolution
B Startup settings
C Printer spool
D Clipboard history
Note: Startup settings control which apps and services start when the OS boots or the user logs in. Managing startup items helps improve boot speed and system performance.
Which concept allows connecting command output to another command input in many terminals
A Piping
B Paging
C Spooling
D Patching
Note: Piping passes the output of one command as input to another. It is useful for filtering and processing text quickly in CLI environments, making administration tasks efficient.
Which command feature allows running a saved list of commands repeatedly for automation
A Icon
B Window
C Script
D Pointer
Note: Scripts store commands in a file so tasks can be repeated automatically. They reduce manual work and errors, and they are widely used for backups, deployments, and routine system maintenance.
Which concept describes using a single computer to run multiple virtual computers
A Fragmentation
B Virtualization
C Defragmentation
D Compression
Note: Virtualization allows running multiple virtual machines on one physical system. Each VM behaves like a separate computer with its own OS, useful for testing and server consolidation.
Which OS type supports many computers working together while appearing like one system to users
A Mobile OS
B Batch OS
C Single-user OS
D Distributed OS
Note: A distributed OS manages multiple connected computers and can share workload and resources. It improves performance and reliability by distributing tasks across nodes in the system.
Which OS type allows many users to work with separate accounts on the same system
A Single-task OS
B Offline OS
C Multiuser OS
D Embedded OS
Note: A multiuser OS supports multiple accounts with separate permissions and files. It manages resources fairly and helps protect privacy by restricting access between users.
Which OS utility is used to watch and analyze system performance over time using metrics
A File Explorer
B Performance Monitor
C Disk Cleanup
D Paint
Note: Performance Monitor tracks system metrics like CPU, memory, disk, and network usage. It helps detect bottlenecks and supports troubleshooting by showing how resource usage changes over time.