Q. Which of the following is the brain of the computer? 

   A) CPU 

   B) Monitor 

   C) RAM 

   D) Keyboard 

   Answer: A) CPU

Q. What does CPU stand for? 

   A) Central Processing Unit 

   B) Computer Personal Unit 

   C) Central Programming Unit 

   D) Control Processing Unit 

   Answer: A) Central Processing Unit

Q. Which of the following is an output device? 

   A) Mouse 

   B) Keyboard 

   C) Monitor 

   D) Scanner 

   Answer: C) Monitor

Q. Which component of the computer system is the primary memory? 

   A) Hard disk 

   B) CD-ROM 

   C) RAM 

   D) Flash Drive 

   Answer: C) RAM

Q. The term ‘bit’ is short for what? 

   A) Binary Digit 

   B) Binary Integer 

   C) Bivariate 

   D) Binary Tab 

   Answer: A) Binary Digit

Q. Which of the following is not an input device? 

   A) Keyboard 

   B) Mouse 

   C) Monitor 

   D) Microphone 

   Answer: C) Monitor

Q. Which part of the computer is considered the ‘nerve center’ responsible for processing? 

   A) RAM 

   B) CPU 

   C) Hard Disk 

   D) GPU 

   Answer: B) CPU

Q. What is the full form of RAM? 

   A) Random Access Memory 

   B) Read Access Memory 

   C) Read Any Memory 

   D) Randomly Accessed Memory 

   Answer: A) Random Access Memory

Q. Which device is primarily used for storing data? 

   A) Monitor 

   B) CPU 

   C) Hard Drive 

   D) Printer 

   Answer: C) Hard Drive

Q. The basic operations performed by a computer are? 

   A) Arithmetic operation 

   B) Logical operation 

   C) Storage and retrieval 

   D) All of the above 

   Answer: D) All of the above

Q. Which one of these is not an example of hardware? 

    A) CPU 

    B) Printer 

    C) Operating System 

    D) Monitor 

    Answer: C) Operating System

Q. What is the main function of ALU? 

    A) Perform arithmetic and logical operations 

    B) Store data 

    C) Control computer peripherals 

    D) Execute instructions 

    Answer: A) Perform arithmetic and logical operations

Q. What type of software is an operating system? 

    A) Application software 

    B) System software 

    C) Utility software 

    D) Programming software 

    Answer: B) System software

Q. Which of the following is not a type of computer? 

    A) Supercomputer 

    B) Minicomputer 

    C) Microcomputer 

    D) Calculator 

    Answer: D) Calculator

Q. Which of the following is a type of ROM? 

    A) PROM 

    B) EPROM 

    C) EEPROM 

    D) All of the above 

    Answer: D) All of the above

Q. Which of the following storage devices can hold the largest amount of data? 

    A) CD-ROM 

    B) DVD 

    C) Blu-ray Disc 

    D) Hard Disk Drive 

    Answer: D) Hard Disk Drive

Q. What type of software is Microsoft Word? 

    A) Operating System 

    B) Utility Software 

    C) Application Software 

    D) Firmware 

    Answer: C) Application Software

Q. Which of the following is a non-volatile memory? 

    A) RAM 

    B) Cache Memory 

    C) ROM 

    D) Registers 

    Answer: C) ROM

Q. Which of the following is an example of application software? 

    A) Microsoft Word 

    B) Windows 10 

    C) BIOS 

    D) UNIX 

    Answer: A) Microsoft Word

Q. Which device is used to connect a computer to the Internet? 

    A) Monitor 

    B) Modem 

    C) Printer 

    D) Scanner 

    Answer: B) Modem

Q. How is data stored in a hard disk? 

    A) Electromagnetically 

    B) Optically 

    C) Magnetically 

    D) Electrically 

    Answer: C) Magnetically

Q. Which of the following is a type of optical storage device? 

    A) Hard Disk 

    B) DVD 

    C) RAM 

    D) USB 

    Answer: B) DVD

Q. Which memory is used for storing frequently used data or instructions? 

    A) Cache Memory 

    B) RAM 

    C) ROM 

    D) Virtual Memory 

    Answer: A) Cache Memory

Q. Which of the following has the fastest data access time? 

    A) Hard Disk 

    B) RAM 

    C) CD-ROM 

    D) Cache Memory 

    Answer: D) Cache Memory

Q. What is the typical capacity of a CD-ROM? 

    A) Q.7 GB 

    B) 700 MB 

    C) 1 GB 

    D) 50 GB 

    Answer: B) 700 MB

Q. Which of the following is not a secondary storage device? 

    A) Hard Disk 

    B) CD-ROM 

    C) Flash Drive 

    D) RAM 

    Answer: D) RAM

Q. What is the purpose of the system’s BIOS? 

    A) To control input and output devices 

    B) To perform the POST (Power-On Self Test) 

    C) To manage file systems 

    D) To store user data 

    Answer: B) To perform the POST

Q. Virtual memory is typically located on which storage device? 

    A) RAM 

    B) ROM 

    C) Hard Drive 

    D) Cache Memory 

    Answer: C) Hard Drive

Q. Which memory is permanently installed and cannot be changed? 

    A) RAM 

    B) ROM 

    C) Cache 

    D) Virtual Memory 

    Answer: B) ROM

Q. Which memory is referred to as “temporary memory” because it loses its content when power is turned off? 

    A) RAM 

    B) ROM 

    C) Hard Drive 

    D) USB Drive 

    Answer: A) RAM

Q. Which of the following is not an operating system? 

    A) Windows 

    B) Linux 

    C) Oracle 

    D) macOS 

    Answer: C) Oracle

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

    A) To compile programs 

    B) To manage computer resources 

    C) To convert high-level language to machine code 

    D) To load application software 

    Answer: B) To manage computer resources

Q. Which type of operating system is used to control industrial and scientific equipment? 

    A) Real-time OS 

    B) Time-sharing OS 

    C) Batch OS 

    D) Distributed OS 

    Answer: A) Real-time OS

Q. What does GUI stand for in the context of operating systems? 

    A) Graphical User Interface 

    B) Graphical Utility Interface 

    C) General User Interaction 

    D) Graph Utility Interface 

    Answer: A) Graphical User Interface

Q. Which of the following is a multi-user operating system? 

    A) MS-DOS 

    B) Windows 7 

    C) Unix 

    D) Windows XP 

    Answer: C) Unix

Q. Which of these is an example of open-source software? 

    A) Microsoft Office 

    B) Linux 

    C) Adobe Photoshop 

    D) macOS 

    Answer: B) Linux

Q. Which of the following is used to compress files? 

    A) WinZip 

    B) MS Word 

    C) Windows Explorer 

    D) None of the above 

    Answer: A) WinZip

Q. Which operating system uses commands like `dir`, `copy`, and `del`? 

    A) Windows 

    B) MS-DOS 

    C) macOS 

    D) Linux 

    Answer: B) MS-DOS

Q. Which of the following is a system tool in Windows OS? 

    A) Calculator 

    B) Paint 

    C) Disk Defragmenter 

    D) MS Office 

    Answer: C) Disk Defragmenter

Q. Which is the core part of the operating system that manages CPU, memory, and devices?

 

    A) Shell 

    B) Kernel 

    C) BIOS 

    D) Interface 

    Answer: B) Kernel

Q. Which of the following is the main language used to design web pages? 

    A) HTML  

    B) C++ 

    C) Python 

    D) Java 

    Answer: A) HTML

Q. What does URL stand for? 

    A) Uniform Resource Locator 

    B) Uniform Response Locator 

    C) United Resource Locator 

    D) Uniform Retrieval Locator 

    Answer: A) Uniform Resource Locator

Q. Which protocol is used for sending emails? 

    A) FTP 

    B) HTTP 

    C) SMTP 

    D) IMAP 

    Answer: C) SMTP

Q. Which of the following is a valid IP address? 

    A) 1Q.1Q.Q.1 

    B) 2Q.2Q.2Q.255 

    C) 1Q.Q.Q.146 

    D) All of the above 

    Answer: D) All of the above

Q. Which of these is a search engine? 

    A) Google 

    B) Twitter 

    C) Gmail 

    D) Facebook 

    Answer: A) Google

Q. What is the full form of HTTP? 

    A) Hyper Transfer Protocol 

    B) Hypertext Transfer Protocol 

    C) High Transfer Text Protocol 

    D) None of the above 

    Answer: B) Hypertext Transfer Protocol

Q. Which of the following is an example of a network protocol? 

    A) TCP/IP 

    B) Windows 

    C) Excel 

    D) Linux 

    Answer: A) TCP/IP

Q. Which of the following is a private IP address? 

    A) 1Q.Q.Q.1 

    B) Q.Q.Q.8 

    C) 1Q.Q.Q.31 

    D) 1Q.Q.Q.1 

    Answer: A) 1Q.Q.Q.1

Q. Which of the following is a LAN topology? 

    A) Star 

    B) Ring 

    C) Bus 

    D) All of the above 

    Answer: D) All of the above

Q. What does DNS stand for? 

    A) Domain Name System 

    B) Domain Network Server 

    C) Digital Name System 

    D) Data Network System 

    Answer: A) Domain Name System

Q. Which of the following is a device that connects two different networks? 

    A) Switch 

    B) Router 

    C) Hub 

    D) Repeater 

    Answer: B) Router

Q. What does FTP stand for? 

    A) File Transfer Protocol 

    B) File Text Protocol 

    C) Fast Transfer Protocol 

    D) File Transmission Protocol 

    Answer: A) File Transfer Protocol

Q. Which type of network is used to connect computers within a single building? 

    A) WAN 

    B) LAN 

    C) MAN 

    D) PAN 

    Answer: B) LAN

Q. Which of the following is a wireless networking technology? 

    A) Ethernet 

    B) Token Ring 

    C) Wi-Fi 

    D) Coaxial Cable 

    Answer: C) Wi-Fi

Q. What is the maximum length of a single Ethernet cable segment? 

    A) 50 meters 

    B) 100 meters 

    C) 200 meters 

    D) 500 meters 

    Answer: B) 100 meters

Q. Which network device is used to amplify and retransmit signals in a network? 

    A) Router 

    B) Switch 

    C) Hub 

    D) Repeater 

    Answer: D) Repeater

Q. Which of the following is NOT a type of network topology? 

    A) Ring 

    B) Mesh 

    C) Tree 

    D) Packet 

    Answer: D) Packet

Q. In networking, what does VPN stand for? 

    A) Virtual Private Network 

    B) Virtual Public Network 

    C) Verified Personal Network 

    D) Very Private Network 

    Answer: A) Virtual Private Network

Q. Which port is used by HTTP by default? 

    A) 23 

    B) 21 

    C) 80 

    D) 443 

    Answer: C) 80

Q. Which device translates between different communication protocols? 

    A) Switch 

    B) Gateway 

    C) Hub 

    D) Repeater 

    Answer: B) Gateway

Q. Which of the following is used to secure online transactions? 

    A) HTTPS 

    B) FTP 

    C) DNS 

    D) HTTP 

    Answer: A) HTTPS

Q. Which of the following is NOT a type of malware? 

    A) Virus 

    B) Firewall 

    C) Worm 

    D) Trojan Horse 

    Answer: B) Firewall

Q. What is a firewall used for in a computer network? 

    A) To block unauthorized access 

    B) To increase the speed of the network 

    C) To connect two different networks 

    D) To encrypt data 

    Answer: A) To block unauthorized access

Q. What does phishing refer to? 

    A) A legitimate way of sending emails 

    B) A method to strengthen a password 

    C) A scam to obtain sensitive information 

    D) A way to clean viruses from computers 

    Answer: C) A scam to obtain sensitive information

Q. Which of the following is a strong password example? 

    A) 123456 

    B) abc123 

    C) Password1 

    D) Xy$9&Km@4P 

    Answer: D) Xy$9&Km@4P

Q. What does the acronym “DoS” stand for in cybersecurity? 

    A) Data over Satellite 

    B) Disk Operating System 

    C) Denial of Service 

    D) Device Optimization Software 

    Answer: C) Denial of Service

Q. Which of the following is the process of converting readable data into unreadable code? 

    A) Compression 

    B) Encryption 

    C) Decryption 

    D) Compiling 

    Answer: B) Encryption

Q. Which of the following helps in detecting and removing malware from your computer? 

    A) Antivirus software 

    B) Word processor 

    C) Operating system 

    D) File manager 

    Answer: A) Antivirus software

Q. What is the primary purpose of a CAPTCHA test? 

    A) To improve security by distinguishing humans from bots 

    B) To reset passwords 

    C) To verify the authenticity of a website 

    D) To encrypt user data 

    Answer: A) To improve security by distinguishing humans from bots

Q. What does the term “Ransomware” refer to? 

    A) Software used to speed up computer performance 

    B) Malware that encrypts data and demands payment 

    C) An application that monitors network traffic 

    D) An anti-virus software component 

    Answer: B) Malware that encrypts data and demands payment

Q. Which programming language is most commonly used for web development? 

    A) Python 

    B) JavaScript 

    C) C++ 

    D) COBOL 

    Answer: B) JavaScript

Q. Which of the following is NOT a high-level programming language? 

    A) C 

    B) Java 

    C) Assembly 

    D) Python 

    Answer: C) Assembly

Q. In object-oriented programming, objects are an instance of what? 

    A) Methods 

    B) Classes 

    C) Functions 

    D) Variables 

    Answer: B) Classes

Q. Which of the following is used to write machine code? 

    A) Compiler 

    B) Assembler 

    C) Interpreter 

    D) Text Editor 

    Answer: B) Assembler

Q. Which of the following is NOT a database management system? 

    A) MySQL 

    B) Oracle 

    C) MongoDB 

    D) Photoshop 

    Answer: D) Photoshop

Q. What is the primary purpose of an IDE (Integrated Development Environment)? 

    A) To browse the internet 

    B) To manage databases 

    C) To write and debug code 

    D) To compile programs 

    Answer: C) To write and debug code

Q. Which of the following software development models involves iterative development and collaboration between cross-functional teams? 

    A) Waterfall 

    B) Agile 

    C) Spiral 

    D) V-Model 

    Answer: B) Agile

Q. Which of these is NOT an example of a relational database? 

    A) PostgreSQL 

    B) Microsoft SQL Server 

    C) MongoDB 

    D) SQLite 

    Answer: C) MongoDB

Q. Which command is used to compile Java programs? 

    A) javac 

    B) java  

    C) gcc 

    D) jvm 

    Answer: A) javac

Q. What is the main goal of software testing? 

    A) To find and fix bugs 

    B) To develop code 

    C) To speed up software 

    D) To document the system 

    Answer: A) To find and fix bugs

Q. What does “fetch-decode-execute” refer to? 

    A) Steps in the CPU’s instruction cycle 

    B) A method for handling memory allocation 

    C) The process of compiling a program 

    D) Data encryption process 

    Answer: A) Steps in the CPU’s instruction cycle

Q. Which of the following is a volatile memory? 

    A) RAM 

    B) ROM 

    C) SSD 

    D) Hard Drive 

    Answer: A) RAM

Q. Which part of the CPU performs arithmetic and logic operations? 

    A) Control Unit 

    B) ALU (Arithmetic Logic Unit) 

    C) Memory Unit 

    D) Cache 

    Answer: B) ALU

Q. Which type of storage is permanent and non-volatile? 

    A) Cache 

    B) RAM 

    C) ROM 

    D) Registers 

    Answer: C) ROM

Q. What is the function of the control unit in the CPU? 

    A) To perform calculations 

    B) To decode instructions 

    C) To store data 

    D) To direct operations of the processor 

    Answer: D) To direct operations of the processor

Q. Which of the following is the smallest unit of data in a computer? 

    A) Bit 

    B) Byte 

    C) Nibble 

    D) Word 

    Answer: A) Bit

Q. Which of the following is the primary function of a GPU? 

    A) Handling arithmetic calculations 

    B) Managing data storage 

    C) Rendering graphics 

    D) Running operating systems 

    Answer: C) Rendering graphics

Q. What does PCI stand for in relation to computer hardware? 

    A) Peripheral Component Interconnect 

    B) Processor Central Interface 

    C) Primary Computing Interface 

    D) Peripheral Control Interchange 

    Answer: A) Peripheral Component Interconnect

Q. Which of the following describes a dual-core processor? 

    A) A processor with two separate physical CPUs 

    B) A single CPU with two execution cores 

    C) Two GPUs connected to the same system 

    D) A processor with twice the clock speed of a normal CPU 

    Answer: B) A single CPU with two execution cores

Q. What is the purpose of a heat sink in a computer? 

    A) To increase the processing power 

    B) To cool down the CPU 

    C) To store temporary data 

    D) To provide additional RAM 

    Answer: B) To cool down the CPU

Q. What does GUI stand for? 

    A) General User Interface 

    B) Graphical User Interface 

    C) Global User Input 

    D) Graphical User Interact 

    Answer: B) Graphical User Interface

Q. Which company developed the first personal computer (PC)? 

    A) IBM 

    B) Apple 

    C) Microsoft 

    D) Intel 

    Answer: A) IBM

Q. In terms of computing, what does BIOS stand for? 

    A) Basic Input Output System 

    B) Binary Input Output System 

    C) Base Integrated Output System 

    D) Binary Integrated Output System 

    Answer: A) Basic Input Output System

Q. Which of the following is a free and open-source operating system? 

    A) Windows 

    B) macOS 

    C) Linux 

    D) Android 

    Answer: C) Linux

Q. Which computer language is used for artificial intelligence? 

    A) C++ 

    B) Python 

    C) Prolog 

    D) Java 

    Answer: C) Prolog

Q. What is the primary unit of measurement for the speed of a processor? 

    A) Hertz 

    B) Bytes 

    C) Flops 

    D) Pixels 

    Answer: A) Hertz

Q. Which of the following is not a file extension for an image? 

    A) .jpeg 

    B) .png 

    C) .mp3 

    D) .gif 

    Answer: C) .mp3

Q. Which of these is NOT an example of a mobile operating system? 

    A) Android 

    B) iOS 

    C) Windows XP 

    D) Symbian 

    Answer: C) Windows XP

Q. What does PDF stand for? 

    A) Portable Document Format 

    B) Public Data File 

    C) Program Data File 

    D) Portable Data Format 

    Answer: A) Portable Document Format

Q. Which of the following is a common format for compressing audio files? 

    A) .txt 

    B) .mp3 

    C) .docx 

    D) .zip 

    Answer: B) .mp3