UNIT-1 CSE-211 MCQ WITH ANSWERS
1. Introduction to Computing Fundamentals
1. Which of the following is NOT a basic function of a computer?
a) Receiving data b) Processing data c) Storing information d) Understanding emotions
Answer: d) Understanding emotions
Explanation: A computer’s primary functions include receiving, processing, and storing data. Understanding emotions is not a capability of standard computers, although this is a topic of research in fields like AI.
2. What is the main function of the Central Processing Unit (CPU) in a computer?
a) Storing data b) Executing instructions c) Displaying data d) Transferring files
Answer: b) Executing instructions
Explanation: The CPU is responsible for processing data and executing instructions provided by the software, making it the brain of the computer.
3. Which of the following devices is used for input?
a) Monitor b) Printer c) Mouse d) Speaker
Answer: c) Mouse
Explanation: A mouse is an input device that allows the user to interact with the graphical interface of a computer. Monitors, printers, and speakers are output devices.
4. What type of storage device provides temporary storage and is used by the CPU while a program is running?
a) Hard Drive b) Flash Drive c) Random Access Memory (RAM) d) CD-ROM
Answer: c) Random Access Memory (RAM)
Explanation: RAM is used by the CPU for temporary storage while programs are running. It is fast, but the data is lost when the power is off.
5. What does the term "bit" stand for in computing?
a) Binary Integer Table b) Binary Information Token c) Binary Digit d) Basic Information Tool
Answer: c) Binary Digit
Explanation: A "bit" is short for "binary digit," which is the smallest unit of data in a computer. It can represent a 0 or 1.
6. Which of the following is an example of system software?
a) Microsoft Word b) Adobe Photoshop c) Windows Operating System d) Google Chrome
Answer: c) Windows Operating System
Explanation: System software manages hardware and software resources, and an operating system like Windows is the most common type of system software.
7. Which of these networks typically covers a large geographic area, such as a country or multiple countries?
a) LAN b) PAN c) WAN d) VPN
Answer: c) WAN
Explanation: A Wide Area Network (WAN) covers large areas, often across countries, and is used to connect different smaller networks, such as the Internet.
8. How many bits make up a byte?
a) 4 b) 8 c) 16 d) 32 Answer: b) 8
Explanation: A byte consists of 8 bits. It is the basic unit of data storage in computing.
9. What is an algorithm?
a) A step-by-step procedure for solving a problem b) A type of programming language c) A storage device d) A visual representation of data
Answer: a) A step-by-step procedure for solving a problem Explanation: An algorithm is a sequence of instructions that leads to the solution of a problem. It forms the basis for writing computer programs.
10. Which of the following emerging technologies uses qubits instead of classical bits for faster processing?
a) Artificial Intelligence (AI) b) Cloud Computing c) Quantum Computing d) Edge Computing
Answer: c) Quantum Computing
Explanation: Quantum computing uses qubits instead of classical bits, enabling faster processing for certain tasks due to quantum superposition and entanglement.
2. Computing Devices and Peripherals
1. Which of the following is NOT an example of a computing device?
a) Desktop computer b) Smartphone c) Printer d) Tablet
Answer: c) Printer
Explanation: Computing devices are machines capable of processing data and executing commands (e.g., desktops, smartphones, tablets). A printer is a peripheral device used for output, not for computation.
2. What is the main advantage of desktop computers over laptops?
a) Portability b) Longer battery life c) High performance and easy upgradability d) Built-in monitor and keyboard
Answer: c) High performance and easy upgradability
Explanation: Desktops typically offer better performance, customization options, and upgradability (e.g., adding more RAM, storage, etc.) compared to laptops. Laptops are portable, but often sacrifice some power and upgrade potential for mobility.
3. Which of the following computing devices is most commonly used for media consumption and light computing tasks?
a) Desktop computer b) Laptop c) Tablet d) Server
Answer: c) Tablet
Explanation: Tablets are compact, lightweight, and designed primarily for tasks like browsing, media consumption, and light computing, making them ideal for everyday use and portability.
4. Which device is primarily used for communication, browsing, and running apps while integrating phone capabilities?
a) Desktop computer b) Laptop c) Tablet d) Smartphone
Answer: d) Smartphone
Explanation: Smartphones combine the functionality of mobile phones and computers, allowing users to communicate, browse the web, and run various apps, all in a portable form.
5. Which type of device is designed to manage and store data, host websites, and run applications for other computers?
a) Desktop computer b) Server c) Tablet d) Smartphone
Answer: b) Server
Explanation: Servers are powerful computers specifically built to manage, store, and process large amounts of data, host websites, and handle applications for other client computers.
6. Which of the following is an example of an input device?
a) Monitor b) Printer c) Keyboard d) Speakers
Answer: c) Keyboard
Explanation: Input devices like keyboards allow users to enter data and commands into a computer system for processing. Monitors and printers are output devices.
7. What is the purpose of a scanner in a computing system?
a) To display visual output b) To produce hard copies of digital documents c) To convert physical documents or images into digital form d) To output sound
Answer: c) To convert physical documents or images into digital form
Explanation: Scanners digitize physical documents, making them accessible on computers, which can store or process the data electronically.
8. Which of the following output devices is used to display visual output from a computer?
a) Printer b) Monitor c) Speakers d) Scanner
Answer: b) Monitor
Explanation: Monitors are output devices that display text, images, videos, and other visual content generated by the computer’s processing.
9. Which type of storage device is faster but typically more expensive than traditional hard disk drives (HDDs)?
a) USB Flash Drive b) Solid-State Drive (SSD) c) Optical Discs d) Cloud Storage
Answer: b) Solid-State Drive (SSD)
Explanation: SSDs use flash memory and offer much faster data read/write speeds compared to traditional HDDs, although they are generally more expensive.
10. Which of the following interfaces is commonly used to connect peripherals such as keyboards, mice, and printers to a computer?
a) HDMI b) USB c) Ethernet d) Thunderbolt Answer: b) USB
Explanation: USB (Universal Serial Bus) is a widely used interface for connecting various peripherals like keyboards, mice, printers, and external storage devices to computers.
11. What is the primary purpose of the HDMI interface?
a) To connect external storage devices b) To provide wireless connectivity for peripherals c) To transmit high-definition video and audio d) To connect computers to a local area network
Answer: c) To transmit high-definition video and audio
Explanation: HDMI (High-Definition Multimedia Interface) transmits both highdefinition video and audio signals from computers to monitors, projectors, or TVs.
12. Which wireless technology is used to connect peripherals like mice and keyboards to a computer without the need for physical connections?
a) HDMI b) Ethernet c) Bluetooth d) USB
Answer: c) Bluetooth
Explanation: Bluetooth is a short-range wireless technology used to connect devices like keyboards, mice, and speakers to a computer without the need for physical cables.
13. Which of the following specialized peripherals is commonly used by artists and designers to create digital art?
a) Gaming Controller b) Graphics Tablet c) Virtual Reality Headset d) Printer
Answer: b) Graphics Tablet
Explanation: Graphics tablets allow artists and designers to draw and create digital artwork using a stylus, offering precision and control that a mouse cannot provide.
14. What type of connection is typically used to link computers to a local area network (LAN)?
a) USB b) Ethernet c) Bluetooth d) Thunderbolt
Answer: b) Ethernet
Explanation: Ethernet is the most common wired technology for connecting computers to local area networks (LANs), providing high-speed, reliable internet access and data transfer.
15. Which device allows users to interact with a computer through physical commands like typing and shortcuts?
a) Mouse b) Microphone c) Keyboard d) Scanner
Answer: c) Keyboard
Explanation: Keyboards are input devices used for typing commands, text, and shortcuts to interact with the computer, making them essential for most computing tasks.
3. Interfaces and Connectors
1. Which of the following is a reversible connector that supports fast data transfer and charging?
a) USB Type-A b) USB Type-B c) USB Type-C d) HDMI
Answer: c) USB Type-C
Explanation: USB Type-C is a newer, reversible connector that supports high-speed data transfer and charging. It is smaller and more versatile compared to Type-A and Type-B connectors. HDMI, on the other hand, is primarily used for audio and video transmission.
2. Which version of USB supports data transfer speeds of up to 40 Gbps?
a) USB 2.0 b) USB 3.0 c) USB 3.1 d) USB4
Answer: d) USB4
Explanation: USB4 is the latest USB standard and supports data transfer rates up to 40 Gbps. USB 2.0 and 3.0 offer much lower speeds, with USB 3.1 supporting up to 10 Gbps.
3. What is the primary function of an Ethernet cable with an RJ-45 connector?
a) Transmitting video signals b) Connecting storage devices c) Connecting a computer to a network d) Audio transmission Answer: c) Connecting a computer to a network
Explanation: Ethernet cables with RJ-45 connectors are used for networking purposes, typically connecting computers to local area networks (LANs) or the internet.
4. Which of the following interfaces is used for high-definition video and audio transmission?
a) DisplayPort b) SATA c) PCIe d) Bluetooth
Answer: a) DisplayPort
Explanation: DisplayPort is designed for transmitting both high-definition video and audio signals. SATA is used for connecting storage devices, PCIe for internal components, and Bluetooth is a wireless technology for short-range communication.
5. Which of the following connectors is typically used in older monitors for analog video transmission?
a) VGA b) HDMI c) USB d) DisplayPort Answer: a) VGA
Explanation: VGA (Video Graphics Array) is an older analog video connector that has largely been replaced by digital interfaces like HDMI and DisplayPort.
6. What type of connector is commonly found on modern smartphones and laptops for both data transfer and charging?
a) Micro USB b) USB Type-A c) USB Type-C d) Thunderbolt 2
Answer: c) USB Type-C
Explanation: USB Type-C has become the standard connector for modern smartphones, tablets, and laptops due to its reversible design, fast data transfer speeds, and power delivery capabilities.
7. Which version of HDMI supports up to 8K resolution?
a) HDMI 1.4 b) HDMI 2.0 c) HDMI 2.1 d) HDMI 1.2
Answer: c) HDMI 2.1
Explanation: HDMI 2.1 is the latest version of the HDMI standard, supporting up to 8K resolution. HDMI 1.4 supports 4K at 30fps, and HDMI 2.0 supports 4K at 60fps.
8. Which interface is primarily used for connecting high-speed internal components like graphics cards and SSDs?
a) SATA b) PCIe c) USB 3.0 d) Thunderbolt
Answer: b) PCIe
Explanation: PCIe (Peripheral Component Interconnect Express) is a high-speed interface used for connecting internal components such as graphics cards, network cards, and NVMe SSDs.
9. Which connector is most commonly used for wired networking in computers?
a) HDMI b) RJ-45 c) USB Type-B d) 3.5mm Audio Jack
Answer: b) RJ-45
Explanation: The RJ-45 connector is used in Ethernet cables for wired networking, enabling computers to connect to LANs or the internet. HDMI and USB are used for other purposes, while 3.5mm jacks are for audio.
10. Which wireless technology is commonly used to connect peripherals like keyboards, mice, and headphones to a computer?
a) Ethernet b) SATA c) Bluetooth d) VGA
Answer: c) Bluetooth
Explanation: Bluetooth is a short-range wireless technology commonly used to connect peripherals such as keyboards, mice, headphones, and speakers to computers and mobile devices.
4. Internal Computer Components
1. What is the primary function of the Central Processing Unit (CPU)?
A) Store data permanently B) Execute instructions and process data C) Provide power to components D) Render graphics
Answer: B) Execute instructions and process data
Explanation: The CPU is often referred to as the brain of the computer, responsible for executing instructions and processing data.
2. Which component of the CPU directs the operation of the processor?
A) Arithmetic Logic Unit (ALU) B) Control Unit (CU) C) Register D) Cache Memory
Answer: B) Control Unit (CU)
Explanation: The Control Unit directs the operations of the processor and manages the flow of data between the CPU and other parts of the computer.
3. What type of memory is Random Access Memory (RAM)?
A) Non-volatile memory B) Permanent memory C) Volatile memory D) Optical memory
Answer: C) Volatile memory
Explanation: RAM is classified as volatile memory because it loses its contents when the power is turned off.
4. Which type of storage device uses spinning disks to read and write data?
A) Solid State Drive (SSD) B) Hard Disk Drive (HDD) C) NVMe SSD D) USB Flash Drive
Answer: B) Hard Disk Drive (HDD)
Explanation: HDDs use mechanical spinning disks (platters) to read and write data, making them slower compared to SSDs.
5. What does a Graphics Processing Unit (GPU) do?
A) Executes arithmetic calculations B) Renders images, animations, and video C) Provides power to the computer D) Connects to the internet
Answer: B) Renders images, animations, and video
Explanation: The GPU is responsible for rendering graphics and video for display on the monitor.
6. Which component is responsible for converting AC power from an outlet into DC power for the computer?
A) CPU B) Power Supply Unit (PSU) C) Motherboard D) Cooling System
Answer: B) Power Supply Unit (PSU)
Explanation: The PSU converts alternating current (AC) into direct current (DC) to power the internal components of the computer.
7. What type of cooling system uses liquid to dissipate heat from components?
A) Air Cooling B) Thermal Paste C) Liquid Cooling D) Passive Cooling
Answer: C) Liquid Cooling
Explanation: Liquid cooling systems use liquid to transfer heat away from critical components, providing effective cooling for high-performance systems.
8. Which component allows a computer to connect to a network?
A) Motherboard B) Sound Card C) Network Interface Card (NIC) D) CMOS Battery
Answer: C) Network Interface Card (NIC)
Explanation: The NIC enables the computer to connect to a network, either via Ethernet (wired) or Wi-Fi (wireless).
9. What is the role of the BIOS/UEFI in a computer system?
A) Store data permanently B) Initialize hardware during startup C) Render graphics D) Manage power supply
Answer: B) Initialize hardware during startup
Explanation: BIOS (Basic Input/Output System) or UEFI (Unified Extensible Firmware Interface) initializes hardware components during the boot process and allows communication between the operating system and hardware.
10. Which of the following statements about CMOS batteries is true?
A) It powers the CPU directly. B) It maintains system settings when the computer is turned off. C) It is used to cool the internal components. D) It converts AC to DC power.
Answer: B) It maintains system settings when the computer is turned off.
Explanation: The CMOS battery powers the BIOS firmware, allowing it to retain settings like time and date when the computer is turned off.
5. Windows workstation: setup, evaluation, and troubleshooting, Exploring additional desktop and mobile operating systems
1. What is the first step in setting up a Windows workstation?
A) Install drivers B) Boot from the installation media C) Create a user account D) Adjust display settings
Answer: B) Boot from the installation media
Explanation: The first step in setting up a Windows workstation is to boot from the installation media, which can be a USB flash drive or DVD that contains the Windows installation files.
2. Which of the following is NOT a system requirement for installing Windows?
A) Minimum CPU speed B) Maximum storage capacity C) Minimum RAM D) Graphics card compatibility
Answer: B) Maximum storage capacity
Explanation: While there are minimum requirements for CPU speed, RAM, and compatibility with graphics cards, there is no maximum storage capacity requirement for installing Windows.
3. During the installation process, what is required before you can select the installation type?
A) Connect to the internet B) Accept the license terms C) Partition the hard drive D) Create a Microsoft account
Answer: B) Accept the license terms
Explanation: You must accept the license terms before proceeding to select the installation type (upgrade or custom).
4. What tool can be used to monitor CPU and memory usage in Windows?
A) Device Manager B) Event Viewer C) Task Manager D) Windows Update
Answer: C) Task Manager
Explanation: Task Manager is the primary tool for monitoring system performance metrics, including CPU and memory usage.
5. What should you do if your Windows system fails to boot?
A) Reinstall Windows immediately B) Check BIOS settings and boot order C) Run a virus scan D) Disconnect all peripherals
Answer: B) Check BIOS settings and boot order
Explanation: If a system fails to boot, checking the BIOS settings and ensuring the boot order is correct is a crucial step before considering reinstalling Windows or performing other troubleshooting measures.
6. Which Windows feature allows you to revert the system to a previous state?
A) Windows Defender B) System Restore C) Windows Update D) Device Manager Answer: B) System Restore
Explanation: System Restore allows users to revert their system to a previous state when it was functioning correctly, helping to resolve issues caused by recent changes.
7. What is a common performance issue that may cause a Windows workstation to slow down?
A) Background applications using high resources B) Outdated antivirus software C) An empty recycle bin D) Lack of user feedback
Answer: A) Background applications using high resources
Explanation: High CPU or memory usage from background applications is a common cause of performance issues in Windows workstations.
8. Which of the following is a feature of Linux operating systems?
A) Proprietary software B) Closed-source code C) Customizable and flexible D) Limited community support
Answer: C) Customizable and flexible
Explanation: Linux operating systems are known for being highly customizable and flexible, allowing users to modify and configure the system according to their needs.
9. What is the primary focus of Chrome OS?
A) High-performance gaming B) Web-based tasks and cloud computing C) Software development D) Multimedia editing
Answer: B) Web-based tasks and cloud computing
Explanation: Chrome OS is designed primarily for web-based tasks and cloud computing, integrating well with Google services.
10. Which operating system is exclusive to Apple devices?
A) Android B) Linux C) Windows Mobile D) iOS
Answer: D) iOS
Explanation: iOS is exclusive to Apple devices such as the iPhone and iPad, providing a secure and user-friendly experience.
11. What feature makes Android a popular mobile operating system?
A) Limited app ecosystem B) Closed-source platform C) Extensive app ecosystem D) Restrictive customization
Answer: C) Extensive app ecosystem
Explanation: Android's open-source nature and extensive app ecosystem through the Google Play Store make it a popular choice among users.
12. Which mobile operating system is primarily focused on productivity and business use?
A) Android B) iOS C) Windows Mobile D) macOS
Answer: C) Windows Mobile
Explanation: Windows Mobile was designed with a focus on productivity and integration with Microsoft services, making it suitable for business use