What is the primary function of a modem? To convert digital signals to analog signals and vice-versa.To store data permanently.To process instructions from the CPU.To display visual output.A) To convert digital signals to analog signals and vice-versa.A modem (modulator-demodulator) is a device that converts digital data into analog signals for transmission over telephone lines or cable and reconverts the analog signals back into digital data at the receiving end.
Which of the following is an example of an input device?MonitorSpeaker KeyboardPrinter C) KeyboardA keyboard is an input device used to enter characters and functions into a computer system. The other options are output devices.
What does the acronym "RAM" stand for?Random Access MemoryRead-Only MemoryRemote Access ModuleRandom Address MainframeA) Random Access MemoryRAM is a type of computer memory that can be accessed randomly, allowing any byte of memory to be accessed without touching the preceding bytes. It is a form of volatile storage used for temporary data.
In a spreadsheet program like Microsoft Excel, what is a "cell"?The intersection of a row and a column.A small program that runs within the spreadsheet.A chart or graph.A formula or function.A) The intersection of a row and a column.In spreadsheet software, a cell is the basic rectangular unit where data is stored. It is defined by the column and row it occupies.
What is the purpose of an IP address?To identify a user's password.To uniquely identify a device on a network.To encrypt data transmissions.To protect a computer from viruses.B) To uniquely identify a device on a network.An IP (Internet Protocol) address is a unique numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication.
Which type of software is responsible for managing a computer's resources, such as memory, processes, and hardware? Application softwareOperating systemUtility software Programming languageB) Operating systemAn operating system (OS) is the most important software that runs on a computer. It manages the computer's memory, processes, and all of its software and hardware.
What is a "firewall"?A type of computer virus.A software or hardware-based network security system that controls incoming and outgoing network traffic.A tool used to clean up a computer's hard drive.A program that compresses files.B) A software or hardware-based network security system that controls incoming and outgoing network traffic.A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.
Which of the following is a non-volatile type of memory?RAMCache memoryROMVirtual memoryC) ROMROM (Read-Only Memory) is a type of memory that retains its data even after the power is turned off, making it non-volatile. RAM is a type of volatile memory.
What is the main function of a graphics processing unit (GPU)?To manage network connections. To handle mathematical calculations.To accelerate the creation and rendering of images, videos, and animations.To store long-term data. C) To accelerate the creation and rendering of images, videos, and animations.A GPU is a specialized electronic circuit designed to rapidly manipulate and alter memory to accelerate the creation of images in a frame buffer intended for output to a display device.
What is the difference between LAN and WAN?LAN is for personal computers, while WAN is for servers. LAN is a local network, while WAN covers a wide geographical area. LAN is wireless, while WAN is wired. LAN is for small files, while WAN is for large files. B) LAN is a local network, while WAN covers a wide geographical area.LAN (Local Area Network) connects devices in a limited area like a home or office, whereas WAN (Wide Area Network) connects devices across a wider area, such as a country or the world.
Which of the following is an example of an input device?PrinterSpeakerScannerMonitor C) ScannerA scanner is a device that captures images, printed text, or objects and converts them into digital format, making it an input device.
What does the acronym "RAM" stand for? Readily Available MemoryRandom Access MemoryReal-time Application ModuleRemote Access MainframeB) Random Access MemoryRAM is a form of computer memory that can be read and changed in any order, typically used to store working data and machine code.
What is the primary function of a web browser?To edit documents.To manage a computer's operating system. To access and view web pages.To protect against viruses.C) To access and view web pages.A web browser is a software application for retrieving, presenting, and traversing information resources on the World Wide Web.
In spreadsheet software like Microsoft Excel, a "cell" is defined as:The entire document.A single box at the intersection of a row and a column.A group of worksheets.The toolbar at the top of the screen.B) A single box at the intersection of a row and a column.In a spreadsheet, a cell is the basic unit for storing data and formulas, located where a row and column intersect.
What is the binary number system based on?Two digits (0 and 1)Ten digits (0 to 9)Eight digits (0 to 7) Sixteen digits (0 to 9 and A to F)A) Two digits (0 and 1)The binary number system, or base-2, is a system that represents numerical values using two symbols, typically 0 and 1.
The Central Processing Unit (CPU) contains which of the following as its components?Memory and storageArithmetic Logic Unit (ALU) and Control UnitOutput device and RAM Input device and Control Unit B) Arithmetic Logic Unit (ALU) and Control UnitThe CPU is the core of a computer and consists of two main parts: the ALU, which performs calculations, and the Control Unit, which manages all operations.
Which type of software is designed to help a user perform a specific task, such as word processing or data management?System SoftwareUtility SoftwareApplication SoftwareOperating SystemC) Application SoftwareApplication software, or an 'app', is a program or a set of programs designed for a specific user-facing purpose.
What is the main function of an Operating System (OS)?To write application programs.To manage a computer's hardware and software resources.To connect a computer to the internet.To process data and perform calculations.B) To manage a computer's hardware and software resources.An OS is the primary software that manages all of the hardware and software on a computer, allowing a user to run applications and interact with the system.
Which of the following is a type of volatile memory?Hard Disk Drive (HDD) Solid State Drive (SSD)Read-Only Memory (ROM)Random Access Memory (RAM)D) Random Access Memory (RAM)RAM is volatile memory, which means it requires power to maintain the stored information. ROM, HDDs, and SSDs are examples of non-volatile memory.
What is a modem used for?To measure electrical current. To convert analog signals to digital and vice-versa. To store data permanently.To display images and text. B) To convert analog signals to digital and vice-versa.A modem (modulator-demodulator) is a network device that converts digital data from a computer into an analog signal for transmission over telephone lines.
Which of the following is a type of malware that replicates itself to spread to other computers? Trojan HorseSpywareWormAdwareC) Worm A computer worm is a standalone malware computer program that replicates itself to spread to other computers.
What is a pixel? A type of computer virus.The smallest unit of a digital image or graphic that can be displayed and represented on a digital display device.A type of computer storage.A network protocol.B) The smallest unit of a digital image or graphic that can be displayed and represented on a digital display device.A pixel is the basic building block of a digital image. The resolution of an image is determined by the number of pixels it contains.
What is the main purpose of a router? To display a webpage. To connect multiple computer networks and forward data packets between them.To store data permanently.To process data and perform calculations. B) To connect multiple computer networks and forward data packets between them.A router is a networking device that directs data traffic between different networks.
The term "GUI" stands for: General User InterfaceGraphics Universal InterfaceGraphical User InterfaceGreat Utility Indicator C) Graphical User InterfaceA Graphical User Interface (GUI) is a visual way of interacting with a computer, using icons, menus, and other visual indicators.
What is the primary function of the ALU in a computer's CPU?To manage the computer's memory.To store temporary data.To perform arithmetic and logical operations. To control all input and output devices.C) To perform arithmetic and logical operations.The Arithmetic Logic Unit (ALU) is a key component of the CPU that executes all the calculations and logical comparisons.
Which of the following is an example of system software?Microsoft WordGoogle ChromeAdobe PhotoshopOperating SystemD) Operating SystemSystem software is designed to manage and control the computer hardware to provide a platform for application software. An operating system is the most prominent example.
What is the main function of RAM in a computer?To permanently store the operating system.To store temporary data and program instructions that the CPU is currently using.To connect the computer to a network.To process data and perform calculations. B) To store temporary data and program instructions that the CPU is currently using. RAM (Random Access Memory) is a type of volatile memory that acts as a temporary workspace for the CPU, allowing for fast access to data.
Which of the following is a type of web browser?Microsoft Excel Adobe PhotoshopGoogle ChromeMicrosoft PowerPoint C) Google ChromeA web browser is an application software for accessing the World Wide Web. Google Chrome, Mozilla Firefox, and Safari are examples of web browsers.
What is the primary purpose of a firewall?To enhance a computer's processing speed.To protect a network from unauthorized access.To manage a computer's memory.To display a webpage.B) To protect a network from unauthorized access.A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predefined security rules.
Which of the following is a type of non-volatile memory?RAM Cache Memory ROMVirtual MemoryC) ROMROM (Read-Only Memory) is a type of memory that retains its data even when the power is turned off. It is used to store startup information for the computer.
What is the main purpose of a VPN?To increase a computer's processing speed.To manage a computer's memory.To provide a secure and encrypted connection over a public network.To store data permanently.C) To provide a secure and encrypted connection over a public network. A Virtual Private Network (VPN) encrypts your internet traffic and routes it through a server, masking your IP address and providing a secure connection.
Which of the following is a type of malware that logs a user's keystrokes?Trojan HorseSpywareRansomwareKeylogger D) KeyloggerA keylogger is a type of spyware that records every keystroke a user makes on their keyboard.
What is the full form of HTML?Hyper Text Markup LanguageHigh Tech Modern LanguageHyperlink and Text Markup LanguageHome Tool Markup LanguageA) Hyper Text Markup Language HTML stands for Hyper Text Markup Language, which is the standard markup language for documents designed to be displayed in a web browser.
Which of the following is considered the "brain" of the computer?RAMHard Drive CPUGPUC) CPUThe CPU (Central Processing Unit) performs most of the processing and calculations, and is often referred to as the "brain" of the computer.
What is the main purpose of a GPU in a computer system?To manage the computer's memory.To process and render images, videos, and graphics.To store data permanently.To perform arithmetic and logical operations.B) To process and render images, videos, and graphics.A Graphics Processing Unit (GPU) is a specialized electronic circuit designed to rapidly manipulate and alter memory to accelerate the creation of images in a frame buffer intended for output to a display device.
Which of the following is a type of programming language?Microsoft WordJava Google Chrome Adobe Photoshop B) JavaA programming language is a formal language comprising a set of instructions used to produce various kinds of output. Java is a popular, high-level programming language.
What is the primary function of a firewall?To store data.To prevent unauthorized access to a private network.To display webpages. To process data. B) To prevent unauthorized access to a private network.A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.
What does "ISP" stand for?Internal Storage Protocol Internet Service Provider Integrated System ProcessorInternational Server Protocol B) Internet Service ProviderAn Internet Service Provider (ISP) is a company that provides access to the internet.
Which of the following is a type of malicious software designed to block access to a computer system until a sum of money is paid?SpywareAdwareRansomware PhishingC) Ransomware Ransomware is a type of malicious software that encrypts a user's files and demands a ransom payment to restore access.