50+ Computer Questions and Answers
Question: What does CPU stand for?
Answer: Central Processing Unit.
Question: What is RAM?
Answer: Random Access Memory.
Question: Define the term "Algorithm."
Answer: An algorithm is a step-by-step procedure or formula for solving a problem.
Question: What is the function of an operating system?
Answer: An operating system manages computer hardware and software resources and provides various services for computer programs.
Question: What does BIOS stand for?
Answer: Basic Input/Output System.
Question: Explain the difference between HTTP and HTTPS.
Answer: HTTPS is a secure version of HTTP. It encrypts data transmitted between the user's browser and the server.
Question: What is a firewall?
Answer: A firewall is a network security device that monitors and controls incoming and outgoing network traffic.
Question: What is the purpose of a cache in a computer?
Answer: A cache is a hardware or software component that stores data to serve future requests more quickly.
Question: What is a IP address?
Answer: An IP address is a numerical label assigned to each device participating in a computer network.
Question: What is a cookie in the context of web browsing?
Answer: A cookie is a small piece of data stored on the user's computer by the web browser while browsing a website.
Question: What is the difference between hardware and software?
Answer: Hardware refers to physical components, while software refers to programs and data that run on a computer.
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Question: What is the purpose of a GPU?
Answer: Graphics Processing Unit (GPU) is designed to accelerate the processing of images and videos.
Question: What does RAID stand for?
Answer: Redundant Array of Independent Disks.
Question: Explain the concept of virtualization.
Answer: Virtualization is the creation of a virtual (rather than actual) version of something, such as a server, operating system, storage device, or network resources.
Question: What is the role of a DNS server?
Answer: Domain Name System (DNS) servers translate human-readable domain names into IP addresses.
Question: What is the purpose of an SSD in a computer?
Answer: Solid State Drive (SSD) is used for storage, providing faster data access compared to traditional Hard Disk Drives (HDD).
Question: Define the term "Malware."
Answer: Malware is any software intentionally designed to harm or exploit computers, networks, or servers.
Question: What is the significance of the Turing Test?
Answer: The Turing Test is a measure of a machine's ability to exhibit human-like intelligence.
Question: What is the difference between a compiler and an interpreter?
Answer: A compiler translates the entire program before execution, while an interpreter translates and executes the program line by line.
Question: What is SQL?
Answer: Structured Query Language (SQL) is a domain-specific language used for managing and manipulating relational databases.
Question: What is the purpose of a proxy server?
Answer: A proxy server acts as an intermediary between a user and the internet, providing security, anonymity, and control over web traffic.
Question: Explain the concept of cloud computing.
Answer: Cloud computing refers to the delivery of computing services (such as storage, processing power, and applications) over the internet.
Question: What is a LAN?
Answer: Local Area Network (LAN) is a network that connects computers and devices within a limited geographic area, such as a home or office.
Question: What is the difference between IPv4 and IPv6?
Answer: IPv4 uses 32-bit addresses, while IPv6 uses 128-bit addresses to accommodate the growing number of devices connected to the internet.
Question: What is a VPN?
Answer: Virtual Private Network (VPN) is a technology that creates a secure, encrypted connection over the internet, allowing users to access private networks remotely.
Question: Define the term "Open Source."
Answer: Open source refers to software whose source code is freely available for the public to view, modify, and distribute.
Question: What is a motherboard?
Answer: The motherboard is the main circuit board of a computer, connecting and providing communication between various components.
Question: Explain the concept of biometrics.
Answer: Biometrics involves the measurement and statistical analysis of people's unique physical and behavioral characteristics for authentication.
Question: What is a macro in the context of computing?
Answer: A macro is a set of instructions that automates tasks in software applications.
Question: What is the purpose of a router in a network?
Answer: A router directs data traffic between computer networks.
Question: What is encryption?
Answer: Encryption is the process of converting data into a code to prevent unauthorized access.
Question: What is a subnet?
Answer: A subnet is a logical subdivision of an IP network.
Question: What is the purpose of the Ctrl+Alt+Delete key combination?
Answer: In Windows, Ctrl+Alt+Delete is used to open the Task Manager or to restart the computer.
Question: What is a QR code?
Answer: A Quick Response (QR) code is a two-dimensional barcode that stores information, often scanned by smartphones.
Question: What is a script in programming?
Answer: A script is a set of instructions written in a scripting language for automating tasks or processes.
Question: Explain the concept of machine learning.
Answer: Machine learning is a subset of artificial intelligence that enables systems to learn and improve from experience without explicit programming.
Question: What is a cache memory?
Answer: Cache memory is a small, high-speed type of volatile computer memory that provides high-speed data access to the processor and stores frequently used computer programs, applications, and data.
Question: What is a modem?
Answer: A modem is a device that modulates and demodulates analog signals to facilitate digital data transmission over communication lines.
Question: What is a 404 error in web browsing?
Answer: A 404 error indicates that the requested webpage is not found on the server.
Question: Define the term "Phishing."
Answer: Phishing is a fraudulent attempt to obtain sensitive information, such as usernames, passwords, and credit card details, by pretending to be a trustworthy entity in electronic communication.
Question: What is the purpose of the Ctrl+C and Ctrl+V keyboard shortcuts?
Answer: Ctrl+C is used to copy, and Ctrl+V is used to paste selected text or objects in many software applications.
Question: What is the purpose of a version control system?
Answer: A version control system (VCS) manages changes to source code, documents, and other collections of information.
Question: What is a compiler flag?
Answer: A compiler flag is a command-line option used to customize the behavior of a compiler during the compilation process.
Question: What is the difference between a hub and a switch?
Answer: A hub broadcasts data to all devices in a network, while a switch selectively sends data only to the device that needs it.
Question: What is the difference between synchronous and asynchronous communication?
Answer: In synchronous communication, both parties involved in the communication must be present at the same time, while asynchronous communication does not require real-time interaction.
Question: What is a kernel in the context of operating systems?
Answer: The kernel is the core part of an operating system that manages system resources and provides a bridge between software and hardware.
Question: What is a packet in networking?
Answer: A packet is a unit of data that is transmitted over a network.
Question: What is the purpose of a cache hit and cache miss?
Answer: A cache hit occurs when the requested data is found in the cache, while a cache miss occurs when the data is not found, requiring a fetch from the main memory.
Question: What is Unicode?
Answer: Unicode is a standard for encoding, representing, and handling text in most of the world's writing systems.
Question: What is the purpose of a DHCP server?
Answer: Dynamic Host Configuration Protocol (DHCP) servers assign IP addresses and network configuration information to devices on a network automatically.
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