Computer Science
Practice Computer Science MCQs for Pakistan exams (CSS, FPSC, PPSC, NTS) — 3,098 practice questions with answers and explanations. Topics include MS Word Shortc
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Computer Science on MCQsHub is 3,111 published questions for Pakistan exams such as CSS, FPSC, PPSC, and NTS. Open a question, choose an option, then read the explanation before you move on. The explanation names the correct choice and why the other options do not fit. Difficulty labels and topic tags show which idea to revise next, instead of repeating questions you already know.
Previous and next links on each question page stay inside Computer Science, so you can work through the subject without returning to this index. Subtopics listed here belong to the same subject and narrow the set. When you want a clock and a score, start a timed quiz for Computer Science. When you want a whole sitting rather than one question, open the past-paper library. New Computer Science questions appear here after editorial review.
The list below starts with the newest Computer Science questions. Later pages keep the same subject. Each title is a link to the full stem, the options, and the explanation.
MS Word Shortcut Keys (533 MCQs) MS Excel Shortcut Keys (520 MCQs) Daily Use Shortcut Keys (7 MCQs) Computer Shortcuts - FIA & General Papers (22 MCQs) MS PowerPoint Shortcut Keys (500 MCQs) Computer Fundamentals (50 MCQs) Computer Hardware (50 MCQs) Operating Systems (51 MCQs) Programming Concepts (51 MCQs) Data Structures (52 MCQs) Algorithms (52 MCQs) Database Management Systems (DBMS) (50 MCQs) Computer Networks (53 MCQs) Cyber Security (52 MCQs) Software Engineering (51 MCQs) Web Technologies (HTML, CSS, JavaScript, HTTP) (50 MCQs) Object-Oriented Programming (OOP) (50 MCQs) Artificial Intelligence & Machine Learning (50 MCQs) Cloud Computing (51 MCQs) Computer Architecture (50 MCQs) Memory & Storage (51 MCQs) Compiler Design (50 MCQs) Theory of Computation (Automata) (50 MCQs) Discrete Mathematics (50 MCQs) Web Technologies (2 MCQs) Software Testing & SDLC (50 MCQs) Windows 10/11 Mcqs (513 MCQs) Which administration tool can be launched directly from the Win+X menu to review system error logs, critical application crashes, and security audit events? Which tab in the Windows Task Manager provides historical and live graphical representations of system performance metrics including CPU utilization speeds, cache sizes, socket counts, and GPU core usage? What is the standard naming syntax convention used for PowerShell cmdlets? An engineer types ncpa.cpl into the Run command window. What network configuration window will open? Which specific tab in the modern Windows 10/11 Task Manager allows administrators to inspect programs configured to run at login and evaluate their impact level (High, Medium, Low, or None)? When a System Restore point is executed on Windows 10/11, which of the following file categories is explicitly NOT modified, deleted, or reverted? What is a core architectural difference between the traditional Windows Command Prompt (cmd.exe) and Windows PowerShell? Which organizational Windows feature allows administrators to defer feature updates for up to 365 days and quality updates for up to 30 days via Group Policy or Mobile Device Management? Which specific executable command-line tool is used in Windows Command Prompt to launch Windows Defender command-line scanning operations manually? When a BitLocker-encrypted drive goes into recovery mode on Windows 10/11 because of a hardware or firmware change, how many digits long is the mandatory numeric recovery password generated to unlock the system? If an IT administrator inputs appwiz.cpl in the Run line, which traditional graphical control panel interface is instantly displayed? Which specific keyboard shortcut is utilized in Windows 10 and Windows 11 to launch the hidden "Power User" or Quick Link menu, providing direct access to vital administrative tools like Disk Management and Device Manager? Entering the command sysdm.cpl into the Windows Run dialog box launches which essential configuration applet? Which Windows error screen, colored green, is specifically shown to Windows Insiders testing pre-release builds? What is the equivalent Windows 11 term sometimes used informally for the error screen, referencing its color change in some builds? What is the specific Windows term for a critical system error screen that appears with a blue background, often indicating a serious hardware or driver issue? What is the general computing term for a program crashing or becoming unresponsive, often requiring a forced restart? What is the general term for restoring a computer system to a previous, presumably stable, condition after a failure or error? What is the general term describing the process of checking data for errors or correctness against defined rules? What is the general term for determining what an authenticated user is permitted to do within a system?
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Which administration tool can be launched directly from the Win+X menu to review system error logs, critical a... Which tab in the Windows Task Manager provides historical and live graphical representations of system perform... What is the standard naming syntax convention used for PowerShell cmdlets? An engineer types ncpa.cpl into the Run command window. What network configuration window will open? Which specific tab in the modern Windows 10/11 Task Manager allows administrators to inspect programs configur... When a System Restore point is executed on Windows 10/11, which of the following file categories is explicitly... What is a core architectural difference between the traditional Windows Command Prompt (cmd.exe) and Windows P... Which organizational Windows feature allows administrators to defer feature updates for up to 365 days and qua... Which specific executable command-line tool is used in Windows Command Prompt to launch Windows Defender comma... When a BitLocker-encrypted drive goes into recovery mode on Windows 10/11 because of a hardware or firmware ch... If an IT administrator inputs appwiz.cpl in the Run line, which traditional graphical control panel interface... Which specific keyboard shortcut is utilized in Windows 10 and Windows 11 to launch the hidden "Power User" or... Entering the command sysdm.cpl into the Windows Run dialog box launches which essential configuration applet? Which Windows error screen, colored green, is specifically shown to Windows Insiders testing pre-release build... What is the equivalent Windows 11 term sometimes used informally for the error screen, referencing its color c... What is the specific Windows term for a critical system error screen that appears with a blue background, ofte... What is the general computing term for a program crashing or becoming unresponsive, often requiring a forced r... What is the general term for restoring a computer system to a previous, presumably stable, condition after a f... What is the general term describing the process of checking data for errors or correctness against defined rul... What is the general term for determining what an authenticated user is permitted to do within a system? What is the general term for the process of confirming a user's claimed identity before granting access to a s... What is the term for a numeric label assigned to each device connected to a computer network, following the TC... What is the general term for a small program used to extend or add functionality to a larger software applicat... What is the general term describing how satisfying and easy a program is to use, beyond just its visual layout... What is the general term used for the visual layout and organization of icons, menus, and windows on a screen? What is the term for installing an application from a source outside the official app store? What is the term describing software distributed and updated automatically through an internet-connected app s... What is the abbreviation for the technology allowing a single physical server to run multiple independent oper... What is the general term for testing software in an isolated environment to prevent it from affecting the main... What is the term for having two or more operating systems installed on the same computer, chosen at startup? What is the term for the process of installing an operating system on a computer with no prior OS installed? What is the term describing a link that points to another file or program without duplicating its content? What is the general term for the visible graphic representing a program, file, or shortcut on the desktop? What is the term describing the sequence of folders leading to a specific file's location? What is the term for a collection of related files organized together under a common name in a file system? What is the general term for small utility programs designed to perform specific maintenance tasks, such as di... Which type of software directly manages computer hardware and provides a platform for application software to... What is the general term for the software applications and files a user directly interacts with, as opposed to... What is the general term for a wired network connection using a cable plugged into a network port? Which older analog video port type was widely used to connect monitors before digital standards like HDMI beca... What is the standard connector type commonly used to connect a keyboard or mouse to a modern computer? What is the abbreviation for a display technology known for producing vivid colors through self-illuminating p... Which term describes optical storage media commonly used historically to distribute software and store data? What is the abbreviation for a small, portable storage device that connects via a USB port, using flash memory... What is the general term for a document listing the technical specifications a computer must meet to run certa... What is the term for the process of copying data to a secondary location to protect against data loss? What is the general term for computing resources, such as storage and processing power, delivered over the int... What is the term for software that creates and manages virtual machines on a physical computer? What is the term describing a computer's ability to run multiple programs or tasks seemingly at the same time? What is the process of reducing the size of a file for storage or transmission efficiency? What is the process of converting readable data into an unreadable format to protect it from unauthorized acce... What is the term for creating a fake identity, such as a spoofed email address, to deceive a recipient? What is the term for an attack that overwhelms a server or network with excessive traffic, making it unavailab... What is the general term for a network of infected computers controlled remotely to carry out coordinated atta... What is the term for permanent software embedded into a hardware device to control its basic functions? Which term describes software offered on a trial basis, often with limited features until a license is purchas... Which term describes software whose source code is made publicly available for anyone to view, modify, and dis... Which term describes software provided free of charge but without access to its source code? What is the term for a temporary or permanent failure of a hardware or software component? What is the term for the delay between sending a request and receiving a response over a network? What is the term for the amount of data a storage device or network connection can hold or transfer, respectiv... What is the term for saving the current system state to the hard disk and powering off completely? What is the term for temporarily suspending a computer's operation, saving state to RAM for quick resume? Which port type has largely replaced older USB-A connectors due to its reversible design and higher speeds? What is the abbreviation for the component that renders graphics and images, especially important for gaming a... What is the common abbreviation for the Central Processing Unit, often called the 'brain' of the computer? What is the term for the main circuit board in a computer that connects all components together? How many bits make up one byte? What is the smallest unit of data in computing, represented as either 0 or 1? What is the standard unit used to measure the clock speed of a computer processor? Which term refers to a temporary storage area used to speed up data access between the CPU and slower memory? What is the general term for a computer program that translates high-level source code into machine code? What is the term for dividing a physical hard drive into multiple logical sections? Which term describes the process of erasing all data on a disk and preparing it with a new file system? What is the term for the process of starting up a computer and loading the operating system? What does the acronym 'OS' stand for in computing? What is the term for malware disguised as legitimate software to trick users into installing it? Which term describes a self-replicating malicious program that spreads across networks without user action? What is the term for software that secretly monitors a user's activity and gathers information without consent... What is the term for malicious software that encrypts a victim's files and demands payment for their release? What is the general term for unwanted or malicious software designed to damage or gain unauthorized access to... What is the term for a small piece of software that fixes bugs or security issues in an existing program? Which file extension is commonly associated with dynamic link library files used by Windows programs? What is the file extension used for a compressed archive commonly created by Windows' built-in compression too... What is the file extension typically used for a Windows executable program file? Which storage technology, increasingly replacing traditional hard drives, has no moving mechanical parts? Which type of memory loses its contents when the computer is powered off? What does GUI stand for, referring to the visual interface style used by Windows? What is the general term for software that allows the operating system to communicate with hardware devices? Which term describes firmware that initializes hardware and starts the boot process before the OS loads? What is the core part of an operating system that manages hardware resources called? Which Windows settings page lists paired and recently connected Bluetooth and USB peripherals? Which Microsoft cloud service allows streaming a full Windows desktop experience to any device over the intern... Which service must be running for print jobs to be processed correctly in Windows? Which Windows feature manages the queue of documents waiting to be printed? Which legacy Windows feature allowed sending and receiving faxes directly through a connected modem? Which app in Windows 10/11 provides basic scanning and digitizing of documents using a connected scanner? Which built-in Windows tool is designed to help detect and diagnose common hardware and software problems auto... Which built-in Windows tool provides a virtual on-screen keyboard for input without a physical keyboard? Which restricted Windows mode locks a device to run only a single designated app, often used in retail or publ... Which setting allows an older application to run using settings that emulate a previous version of Windows? Which Windows feature analyzes an app's compatibility issues with the current OS version and suggests fixes? Which built-in tool allows checking a Windows PC's compatibility for upgrading to Windows 11? Which built-in Windows feature helps reduce distracting pop-ups and notifications automatically detected durin... Which Windows feature allows capturing gameplay video clips automatically in the background while playing a ga... What is the purpose of the Xbox app included in Windows 10/11? Which subscription service provides access to a large library of video games on Windows PCs? Which Microsoft subscription service integrates cloud storage and Office apps often bundled with Windows PCs? Which classic Windows feature, an animated assistant that offered tips in old Office applications, is often re... Which Microsoft service, integrated into Windows 11's taskbar in some regions, provides an AI-powered chat ass... Which built-in accessibility feature converts spoken words into typed text within Windows apps? Which Windows 10/11 feature enables users to install and use multiple keyboard languages and switch between th... Which lightweight built-in app lets users jot down quick reminders that appear as small colored notes on the d... Which app, bundled with Windows, helps users create and manage simple to-do lists and tasks? Which built-in Windows app allows sending and receiving emails without installing a third-party client? Which built-in app helps users manage appointments, events, and reminders in Windows 10/11? Which built-in Windows app allows users to set alarms, timers, and a world clock? Which Windows feature suggests and automatically arranges recently used files for quick access via the Start M... What is the purpose of the 'Feedback Hub' app in Windows 10/11? What is the purpose of the 'Get Help' app included in Windows 10/11? Which app allows users to capture photos and record video using a webcam or built-in camera on a Windows devic... Which calculator app mode allows unit conversions and scientific/programmer calculations in Windows 10/11? Which basic drawing and image editing application has shipped with Windows since Windows 1.0? Which built-in word processor in Windows supports basic formatting but is more limited than Microsoft Word? Which basic text editor, included in Windows since its earliest versions, is used for plain text files? Which built-in note-taking application in Windows 10/11 supports handwriting, drawing, and typed notes? What is the default media player application for playing videos in Windows 10/11? What is the default image viewing application bundled with Windows 10/11? Which Windows feature combines multiple physical drives into a single flexible storage pool? Which built-in Windows feature allows the creation and management of virtual machines? Which feature enables running a genuine Linux environment directly within Windows 10/11 without a separate vir... Which feature, introduced with Windows 11, initially allowed running Android apps directly on a Windows PC? Which term refers to traditional desktop applications that predate the Microsoft Store app model? What does the acronym UWP, referring to a class of Windows apps, stand for? What is the official digital storefront for downloading apps in Windows 10/11 called? Which cellular technology allows a Windows laptop with a SIM card to connect directly to mobile data networks? Which Windows feature allows monitoring real-time bandwidth usage by individual apps on the network? Which term describes dividing a large network into smaller, more manageable segments? What is the term for redirecting incoming network traffic on a specific port to a particular device on a local... Which older Wi-Fi security protocol is now considered highly insecure and outdated? Which network security protocol is considered the modern, more secure standard for protecting Wi-Fi networks,... What is the term for the process of a device joining and authenticating onto a wireless network? Which wireless networking standard, common before Wi-Fi 6, is often referred to as Wi-Fi 5? Which wireless networking standard is commonly referred to as Wi-Fi 6? Which Windows setting lets a user manually configure a static IP address instead of using DHCP? Which device converts digital data into signals suitable for transmission over telephone or cable lines? What is the term for the software or hardware that connects multiple devices within a single local network, fo... Which system translates human-readable domain names into IP addresses? What is the term for a device, such as a router, that connects a local network to the internet? Which network profile type in Windows is intended for trusted home or work networks and enables more sharing o... Which network profile type in Windows applies more restrictive sharing settings for security, such as when con... What is the purpose of Windows Firewall's 'outbound rules' setting? What is the purpose of the Windows Firewall's 'inbound rules' setting? Which command clears the DNS resolver cache on a Windows computer? Which Windows utility can release and renew a computer's DHCP-assigned IP address? What is the term for the unique hardware identifier assigned to a network adapter? Which term describes a private network address range not routable on the public internet, such as 192.168.x.x? Which Windows feature allows file and printer sharing between computers on the same local network? Which protocol is commonly used by Remote Desktop Connection to communicate between client and host? Which wireless technology is primarily used by Windows' Nearby Sharing feature for short-range file transfer? Which command displays active network connections and listening ports on a Windows machine? Which command-line utility displays the route data packets take to reach a destination host? Which type of network connection creates a secure, encrypted tunnel to a remote network over the internet? Which setting must be enabled for a Windows PC to be visible to other computers on the same network? Which Windows feature allows a PC to share its internet connection wirelessly with other devices? Which setting quickly disables all wireless communications, including Wi-Fi and Bluetooth, on a Windows device... Which Windows feature enables one user to view another user's screen and offer remote troubleshooting help? Which built-in Windows feature allows users to connect to and control another computer remotely over a network... Which Windows Control Panel/Settings feature manages network connections, sharing, and troubleshooting? Which Windows 10/11 feature lets IT administrators restrict which applications are allowed to run on a managed... What is the term for a security update addressing an actively exploited vulnerability, often released outside... Which Windows Security feature helps parents manage screen time and content filtering as part of the security... Which Windows security feature can automatically lock a PC when a paired Bluetooth phone moves out of range? What is the term for logging into multiple related systems or applications with just one set of credentials? What is the term for verifying a user's identity using two or more independent methods, such as a password plu... Which Windows Security page shows information related to TPM, Secure Boot, and core isolation together? Which technology in Windows warns users before running an unrecognized or potentially harmful downloaded file? Which Windows Security feature warns about potentially malicious websites and downloads through Microsoft Defe... Which Windows Security section manages Windows Hello, dynamic lock, and sign-in options? Which Windows Security section reports on general PC health, storage capacity, and driver issues? Which Windows Security section provides information about firewall and network protection status? Which modern security model assumes no user or device should automatically be trusted, even inside the network... What is the general security principle of giving users only the permissions necessary for their tasks? Which physical authentication device can be used with Windows Hello for passwordless sign-in? Which Windows sign-in option allows using a short numeric code instead of a full password? Which Windows feature can automatically encrypt a device's system drive as soon as it's set up, without user c... What is the term for software that displays unwanted advertisements, often bundled with free downloads? What is the general term for tricking users into revealing sensitive information through fraudulent emails or... What does the term 'zero-day vulnerability' refer to in computer security? What is the term for software updates specifically designed to fix known security vulnerabilities? Which Windows Security scan type checks every file and running program on all drives? Which Windows Security scan type checks only the most commonly infected areas of a system for malware? Which Windows tool allows scanning a system offline before the operating system fully loads, useful against pe... Which security feature scans and blocks exploits that target software vulnerabilities, configurable per app? Which Windows Security feature prevents malicious or unauthorized changes to Windows Defender's own settings? Which Microsoft Defender feature sends suspicious file samples to the cloud for rapid analysis? Which Windows Defender feature scans files in real time as they are accessed, downloaded, or opened? Which BitLocker variant is designed specifically to encrypt removable USB drives? Which technology encrypts individual files and folders in NTFS, separate from full-disk BitLocker encryption? Which Windows 10/11 privacy setting category allows users to control which apps can access the camera and micr...