Information Technology IT Tools and Network Basics MCQ

Information Technology IT Tools and Network Basics MCQ. Assess knowledge of IT Tools & Network Basics with 100 questions. Covers computers, OS, internet & office software. Answers provided.

Information Technology IT Tools and Network Basics MCQ – Mock Online Test

Question 1: Which of the following is NOT an example of an input device?

A. Keyboard
B. Mouse
C. Printer
D. Scanner

Show Explanation

Correct Answer: C. Printer. A printer is an output device that produces a hard copy of documents from a computer.

Question 2: What is the primary function of a computer’s CPU?

A. Storing data permanently
B. Displaying images on the screen
C. Processing data and executing instructions
D. Connecting to the internet

Show Explanation

Correct Answer: C. Processing data and executing instructions. The CPU is the “brain” of the computer, responsible for carrying out all the calculations and operations.

Question 3: Which type of computer is generally the most portable and lightweight?

A. Desktop computer
B. Laptop computer
C. Tablet computer
D. Server computer

Show Explanation

Correct Answer: C. Tablet computer. Tablets are designed for portability with their compact size and touchscreen interface.

Question 4: What is the purpose of a storage device?

A. To display information to the user
B. To process and execute instructions
C. To connect to the internet
D. To store data and programs

Show Explanation

Correct Answer: D. To store data and programs. Storage devices hold information both temporarily and permanently.

Question 5: Which of the following is an example of primary storage?

A. Hard disk drive (HDD)
B. Solid-state drive (SSD)
C. Random Access Memory (RAM)
D. USB flash drive

Show Explanation

Correct Answer: C. Random Access Memory (RAM). RAM is the computer’s primary storage, used for temporarily storing data that the CPU is actively using.

Question 6: What is the decimal equivalent of the binary number 1010?

A. 2
B. 8
C. 10
D. 12

Show Explanation

Correct Answer: C. 10. In binary, each place value represents a power of 2. So, 1010 is $(1 * 2^3) + (0 * 2^2) + (1 * 2^1) + (0 * 2^0) = 8 + 0 + 2 + 0 = 10$.

Question 7: Which number system uses the digits 0-9 and the letters A-F?

A. Binary
B. Decimal
C. Octal
D. Hexadecimal

Show Explanation

Correct Answer: D. Hexadecimal. Hexadecimal uses 16 symbols, including 0-9 and A-F to represent values.

Question 8: What is the main difference between a laptop and a desktop computer?

A. Laptops have larger screens than desktops.
B. Desktops are more portable than laptops.
C. Laptops are designed for portability, while desktops are stationary.
D. Desktops use a different operating system than laptops.

Show Explanation

Correct Answer: C. Laptops are designed for portability, while desktops are stationary. Laptops integrate the monitor, keyboard, and mouse into a single unit for easy transport.

Question 9: Which of the following is NOT a common output device?

A. Monitor
B. Speaker
C. Microphone
D. Projector

Show Explanation

Correct Answer: C. Microphone. A microphone is an input device that captures sound.

Question 10: What is the function of a computer’s motherboard?

A. To connect the computer to the internet
B. To store the operating system and programs
C. To act as the main circuit board, connecting all the computer’s components
D. To display images on the screen

Show Explanation

Correct Answer: C. To act as the main circuit board, connecting all the computer’s components. The motherboard provides the connections for the CPU, RAM, storage devices, and other peripherals.

Question 11: What is the primary function of an operating system?

A. To create text documents and spreadsheets
B. To browse the internet and send emails
C. To manage computer hardware and software resources
D. To protect the computer from viruses and malware

Show Explanation

Correct Answer: C. To manage computer hardware and software resources. The operating system acts as an intermediary between the user and the computer hardware.

Question 12: Which of the following is NOT a common operating system?

A. Microsoft Windows
B. Google Chrome
C. Linux
D. macOS

Show Explanation

Correct Answer: B. Google Chrome. Google Chrome is a web browser, not an operating system.

Question 13: What is a file extension?

A. A unique identifier that determines the type of file
B. A folder that contains multiple files
C. A password that protects a file from unauthorized access
D. A shortcut to a file located on the desktop

Show Explanation

Correct Answer: A. A unique identifier that determines the type of file. File extensions, like .docx or .jpg, indicate the file’s format.

Question 14: What action does the “delete” command perform in file management?

A. Moves a file to the Recycle Bin or Trash
B. Renames a file with a new name
C. Copies a file to a different location
D. Opens a file in its default application

Show Explanation

Correct Answer: A. Moves a file to the Recycle Bin or Trash. Deleting a file typically sends it to a temporary location before permanent removal.

Question 15: What is the purpose of a folder in a file system?

A. To execute programs and applications
B. To connect to the internet
C. To organize and store files
D. To display images and videos

Show Explanation

Correct Answer: C. To organize and store files. Folders help create a hierarchical structure for managing files.

Question 16: Which operating system is known for its open-source nature and flexibility?

A. Windows
B. Linux
C. macOS
D. Chrome OS

Show Explanation

Correct Answer: B. Linux. Linux is open-source, meaning its source code is freely available for modification and distribution.

Question 17: What is the purpose of the command line interface (CLI)?

A. To create graphical user interfaces (GUIs)
B. To interact with the operating system using text commands
C. To browse the internet and access websites
D. To play games and multimedia content

Show Explanation

Correct Answer: B. To interact with the operating system using text commands. The CLI allows users to type commands to perform actions.

Question 18: Which of the following is a common command used to list files in a directory in Linux?

A. dir
B. ls
C. show
D. display

Show Explanation

Correct Answer: B. ls. The “ls” command is used in Linux and macOS to display the contents of a directory.

Question 19: What is the purpose of system settings in an operating system?

A. To install new software applications
B. To customize the appearance and behavior of the operating system
C. To create and edit documents and spreadsheets
D. To connect to the internet and access websites

Show Explanation

Correct Answer: B. To customize the appearance and behavior of the operating system. System settings allow users to personalize their computer environment.

Question 20: What is the function of accessibility options in an operating system?

A. To protect the computer from viruses and malware
B. To improve the usability of the computer for people with disabilities
C. To connect to the internet and access websites
D. To manage and organize files and folders

Show Explanation

Correct Answer: B. To improve the usability of the computer for people with disabilities. Accessibility options provide features like screen readers, magnifiers, and alternative input methods.

Question 21: What is the primary purpose of word processing software?

A. To perform complex calculations
B. To create and edit text documents
C. To design presentations with visual aids
D. To manage databases and perform queries

Show Explanation

Correct Answer: B. To create and edit text documents. Word processing software provides tools for writing, formatting, and organizing text.

Question 22: Which of the following is NOT a common word processing software?

A. Microsoft Word
B. Google Docs
C. Adobe Photoshop
D. LibreOffice Writer

Show Explanation

Correct Answer: C. Adobe Photoshop. Adobe Photoshop is primarily an image editing software, not a word processor.

Question 23: What is the function of the “font” option in word processing?

A. To change the size of the page margins
B. To adjust the spacing between lines of text
C. To apply a style to a paragraph
D. To change the typeface and style of the text

Show Explanation

Correct Answer: D. To change the typeface and style of the text. The font option allows users to select different fonts like Arial, Times New Roman, etc.

Question 24: What is the purpose of “bolding” text in a document?

A. To italicize the text
B. To underline the text
C. To make the text stand out by increasing its thickness
D. To change the color of the text

Show Explanation

Correct Answer: C. To make the text stand out by increasing its thickness. Bolding is a formatting option that emphasizes text.

Question 25: What is the function of a “header” in a word processing document?

A. To insert a page number at the bottom of the page
B. To add a title at the beginning of the document
C. To insert repeating content at the top of each page
D. To create a table of contents

Show Explanation

Correct Answer: C. To insert repeating content at the top of each page. Headers often contain information like document titles, author names, or dates.

Question 26: What is the purpose of using “styles” in word processing?

A. To apply a consistent set of formatting options to text
B. To insert images and charts into a document
C. To create a mail merge document
D. To change the page orientation from portrait to landscape

Show Explanation

Correct Answer: A. To apply a consistent set of formatting options to text. Styles help maintain a uniform appearance throughout a document.

Question 27: What is a “table” in a word processing document?

A. A collection of related data organized in rows and columns
B. A visual representation of data using bars or lines
C. A list of items arranged in a specific order
D. A graphic image inserted into the document

Show Explanation

Correct Answer: A. A collection of related data organized in rows and columns. Tables are used to present information in a structured format.

Question 28: How can you insert a “page break” in a word processing document?

A. By pressing the Enter key repeatedly
B. By using the “Insert” menu or a keyboard shortcut
C. By changing the font size to a larger value
D. By increasing the page margins

Show Explanation

Correct Answer: B. By using the “Insert” menu or a keyboard shortcut. A page break forces the content after it to start on a new page.

Question 29: What is the purpose of “mail merge” in word processing?

A. To send multiple emails to a list of recipients
B. To combine a document with a data source to create personalized letters or labels
C. To merge two separate documents into one
D. To create a table of contents for a long document

Show Explanation

Correct Answer: B. To combine a document with a data source to create personalized letters or labels. Mail merge automates the process of generating customized documents.

Question 30: Which feature in word processing allows you to track changes made to a document?

A. Spell check
B. Track changes
C. Find and replace
D. Autocorrect

Show Explanation

Correct Answer: B. Track changes. This feature allows multiple users to collaborate on a document while keeping a record of edits.

Question 31: What is the primary function of spreadsheet software?

A. To create and edit text documents
B. To design presentations with visual aids
C. To organize and analyze data in rows and columns
D. To manage databases and perform queries

Show Explanation

Correct Answer: C. To organize and analyze data in rows and columns. Spreadsheets are designed for working with numerical data and performing calculations.

Question 32: Which of the following is NOT a common spreadsheet software?

A. Microsoft Excel
B. Google Sheets
C. Apple Numbers
D. Adobe Acrobat Reader

Show Explanation

Correct Answer: D. Adobe Acrobat Reader. Adobe Acrobat Reader is used for viewing and interacting with PDF files, not for creating spreadsheets.

Question 33: What is a “cell” in a spreadsheet?

A. A visual representation of data using bars or lines
B. The intersection of a row and a column where data is entered
C. A group of worksheets within a workbook
D. A formula that performs a calculation

Show Explanation

Correct Answer: B. The intersection of a row and a column where data is entered. Cells are the basic building blocks of a spreadsheet.

Question 34: What is the purpose of a “formula” in a spreadsheet?

A. To format the appearance of a cell
B. To insert an image or chart into a worksheet
C. To perform calculations on data in cells
D. To sort and filter data in a worksheet

Show Explanation

Correct Answer: C. To perform calculations on data in cells. Formulas use operators like +, -, *, / to manipulate data.

Question 35: Which function in a spreadsheet is used to calculate the sum of a range of cells?

A. AVERAGE
B. COUNT
C. MAX
D. SUM

Show Explanation

Correct Answer: D. SUM. The SUM function adds up the values in a selected range of cells.

Question 36: What is the purpose of a “chart” in a spreadsheet?

A. To organize data in rows and columns
B. To perform calculations on data
C. To visually represent data in a graphical format
D. To filter and sort data in a worksheet

Show Explanation

Correct Answer: C. To visually represent data in a graphical format. Charts help users understand data trends and patterns.

Question 37: What is the function of “data sorting” in a spreadsheet?

A. To arrange data in ascending or descending order
B. To remove duplicate values from a dataset
C. To filter data based on specific criteria
D. To validate data entered into a cell

Show Explanation

Correct Answer: A. To arrange data in ascending or descending order. Data sorting helps organize information for better analysis.

Question 38: What is the purpose of “data filtering” in a spreadsheet?

A. To display only the data that meets certain criteria
B. To perform calculations on a subset of data
C. To create a chart based on specific data
D. To sort data in ascending or descending order

Show Explanation

Correct Answer: A. To display only the data that meets certain criteria. Data filtering allows users to focus on specific information.

Question 39: What is the function of “data validation” in a spreadsheet?

A. To ensure that data entered into a cell meets specific rules or constraints
B. To protect a worksheet with a password
C. To create a drop-down list of valid entries
D. To prevent users from editing certain cells

Show Explanation

Correct Answer: A. To ensure that data entered into a cell meets specific rules or constraints. Data validation helps maintain data integrity.

Question 40: What is a “PivotTable” in a spreadsheet?

A. A table that automatically updates when data changes
B. A tool for summarizing and analyzing large datasets
C. A chart that displays data in a graphical format
D. A way to protect a worksheet from unauthorized access

Show Explanation

Correct Answer: B. A tool for summarizing and analyzing large datasets. PivotTables allow users to explore data from different perspectives.

Question 41: What is the primary purpose of presentation software?

A. To create and edit text documents
B. To organize and analyze data in rows and columns
C. To design visual aids for presentations and slideshows
D. To manage databases and perform queries

Show Explanation

Correct Answer: C. To design visual aids for presentations and slideshows. Presentation software helps create engaging presentations with text, images, and multimedia.

Question 42: Which of the following is NOT a common presentation software?

A. Microsoft PowerPoint
B. Google Slides
C. Apple Keynote
D. Microsoft Excel

Show Explanation

Correct Answer: D. Microsoft Excel. Microsoft Excel is a spreadsheet software, not a presentation tool.

Question 43: What is a “slide” in a presentation?

A. A single page in a presentation that displays content
B. A transition effect between slides
C. An animation effect applied to an object on a slide
D. A hidden note added to a slide for the presenter

Show Explanation

Correct Answer: A. A single page in a presentation that displays content. Slides are the basic building blocks of a presentation.

Question 44: What is the purpose of a “theme” in a presentation?

A. To apply a consistent design and color scheme to all slides
B. To add a transition effect between slides
C. To insert an image or video into a slide
D. To create speaker notes for the presenter

Show Explanation

Correct Answer: A. To apply a consistent design and color scheme to all slides. Themes provide a unified look and feel to a presentation.

Question 45: What is the function of an “animation” in a presentation?

A. To control the way content appears on a slide
B. To add a transition effect between slides
C. To insert a sound effect into a slide
D. To change the background color of a slide

Show Explanation

Correct Answer: A. To control the way content appears on a slide. Animations add movement and visual interest to elements on a slide.

Question 46: What is the purpose of a “transition” in a presentation?

A. To control the way content appears on a slide
B. To add an effect when moving from one slide to the next
C. To insert a video clip into a slide
D. To create speaker notes for the presenter

Show Explanation

Correct Answer: B. To add an effect when moving from one slide to the next. Transitions create visual interest during slide changes.

Question 47: What is the function of “speaker notes” in a presentation?

A. To display notes on the screen for the audience to see
B. To provide prompts and reminders for the presenter
C. To add sound effects to a presentation
D. To control the timing of slide transitions

Show Explanation

Correct Answer: B. To provide prompts and reminders for the presenter. Speaker notes are hidden from the audience and assist the presenter.

Question 48: Which of the following media elements can be added to a presentation?

A. Images
B. Videos
C. Sound
D. All of the above

Show Explanation

Correct Answer: D. All of the above. Presentations can incorporate various media elements to enhance engagement.

Question 49: What is the purpose of “slide master” in presentation software?

A. To create a hidden slide with notes for the presenter
B. To apply a consistent layout and formatting to all slides
C. To add a transition effect between slides
D. To insert a table or chart into a slide

Show Explanation

Correct Answer: B. To apply a consistent layout and formatting to all slides. The slide master acts as a template for the overall presentation design.

Question 50: What is a common method for sharing presentations online?

A. Emailing the presentation file
B. Uploading the presentation to a cloud storage service
C. Sharing a link to the presentation
D. All of the above

Show Explanation

Correct Answer: D. All of the above. Presentations can be shared through various online methods for collaboration and accessibility.

Question 51: What is a computer network?

A. A single computer with multiple users
B. A collection of interconnected devices that can communicate with each other
C. A software program that connects to the internet
D. A type of storage device that holds data

Show Explanation

Correct Answer: B. A collection of interconnected devices that can communicate with each other. Networks enable devices to share resources and information.

Question 52: Which type of network covers a small geographical area, like a home or office?

A. LAN (Local Area Network)
B. WAN (Wide Area Network)
C. MAN (Metropolitan Area Network)
D. PAN (Personal Area Network)

Show Explanation

Correct Answer: A. LAN (Local Area Network). LANs are typically confined to a single building or a small group of buildings.

Question 53: Which type of network covers a large geographical area, like a country or the entire world?

A. LAN (Local Area Network)
B. WAN (Wide Area Network)
C. MAN (Metropolitan Area Network)
D. PAN (Personal Area Network)

Show Explanation

Correct Answer: B. WAN (Wide Area Network). The internet is an example of a WAN.

Question 54: What is a network topology?

A. The physical or logical arrangement of devices in a network
B. The type of cable used to connect devices in a network
C. The protocol used for communication between devices
D. The speed of data transfer in a network

Show Explanation

Correct Answer: A. The physical or logical arrangement of devices in a network. Common topologies include star, bus, and ring.

Question 55: Which network topology connects all devices to a central hub or switch?

A. Star topology
B. Bus topology
C. Ring topology
D. Mesh topology

Show Explanation

Correct Answer: A. Star topology. In a star topology, the central hub acts as a communication controller.

Question 56: What is the function of a router in a network?

A. To connect multiple devices within a LAN
B. To forward data packets between different networks
C. To provide access to the internet
D. To store data and files on a network

Show Explanation

Correct Answer: B. To forward data packets between different networks. Routers direct traffic between networks, like between a LAN and the internet.

Question 57: What is the purpose of a switch in a network?

A. To connect multiple devices within a LAN
B. To forward data packets between different networks
C. To provide access to the internet
D. To store data and files on a network

Show Explanation

Correct Answer: A. To connect multiple devices within a LAN. Switches allow devices within a network to communicate with each other.

Question 58: What is an IP address?

A. A physical address assigned to a network device
B. A unique numerical identifier assigned to a device on a network
C. A password used to access a network
D. A type of network cable

Show Explanation

Correct Answer: B. A unique numerical identifier assigned to a device on a network. IP addresses enable devices to be located on a network.

Question 59: What is the purpose of the HTTP protocol?

A. To transfer files between computers
B. To send and receive email messages
C. To access and retrieve web pages
D. To assign IP addresses to devices on a network

Show Explanation

Correct Answer: C. To access and retrieve web pages. HTTP (Hypertext Transfer Protocol) is the foundation of communication on the World Wide Web.

Question 60: What is the function of the DNS (Domain Name System)?

A. To translate domain names (like example.com) into IP addresses
B. To assign IP addresses to devices on a network
C. To encrypt data transmitted over a network
D. To protect a network from unauthorized access

Show Explanation

Correct Answer: A. To translate domain names (like example.com) into IP addresses. DNS makes it easier for users to access websites without remembering numerical IP addresses.

Question 61: What is the Internet?

A. A single computer network within a building
B. A global network of interconnected computer networks
C. A software application for Browse web pages
D. A type of storage device that holds data

Show Explanation

Correct Answer: B. A global network of interconnected computer networks. The Internet connects billions of devices worldwide.

Question 62: What is the purpose of a web browser?

A. To send and receive email messages
B. To access and view web pages
C. To create and edit documents
D. To manage files and folders

Show Explanation

Correct Answer: B. To access and view web pages. Web browsers like Chrome, Firefox, and Safari interpret and display web content.

Question 63: What is a search engine?

A. A website that allows users to send and receive email
B. A tool that helps users find information on the Internet
C. A software application for creating presentations
D. A type of network cable used to connect devices

Show Explanation

Correct Answer: B. A tool that helps users find information on the Internet. Search engines like Google, Bing, and DuckDuckGo index web pages and provide relevant results based on user queries.

Question 64: What is a URL (Uniform Resource Locator)?

A. A physical address of a computer
B. A unique address that identifies a web page or resource on the Internet
C. A password used to access a website
D. A type of network protocol

Show Explanation

Correct Answer: B. A unique address that identifies a web page or resource on the Internet. URLs specify the location of web content.

Question 65: What is the purpose of email?

A. To access and view web pages
B. To send and receive electronic messages
C. To create and edit documents
D. To manage files and folders

Show Explanation

Correct Answer: B. To send and receive electronic messages. Email allows users to communicate electronically with individuals or groups.

Question 66: What is cloud computing?

A. Storing and accessing data and applications over the Internet instead of on a local computer
B. A type of network cable used to connect devices
C. A software application for creating presentations
D. A type of network topology

Show Explanation

Correct Answer: A. Storing and accessing data and applications over the Internet instead of on a local computer. Cloud computing provides on-demand access to resources.

Question 67: Which of the following is an example of a cloud storage service?

A. Google Drive
B. Dropbox
C. iCloud
D. All of the above

Show Explanation

Correct Answer: D. All of the above. Cloud storage services allow users to store and share files online.

Question 68: What is the purpose of online collaboration tools?

A. To allow users to work together on projects and documents remotely
B. To send and receive email messages
C. To access and view web pages
D. To manage files and folders

Show Explanation

Correct Answer: A. To allow users to work together on projects and documents remotely. Online collaboration tools facilitate teamwork and communication.

Question 69: Which of the following is an example of an online collaboration tool?

A. Google Workspace
B. Microsoft Teams
C. Slack
D. All of the above

Show Explanation

Correct Answer: D. All of the above. These tools provide features like document sharing, video conferencing, and instant messaging.

Question 70: What is netiquette?

A. A type of network protocol
B. A set of rules for polite and appropriate online behavior
C. A password used to access a website
D. A type of network cable

Show Explanation

Correct Answer: B. A set of rules for polite and appropriate online behavior. Netiquette promotes respectful communication in online environments.

Question 71: What is cybersecurity?

A. The practice of protecting computer systems and networks from unauthorized access and threats
B. A type of computer virus
C. A software application for Browse the internet
D. A type of network cable

Show Explanation

Correct Answer: A. The practice of protecting computer systems and networks from unauthorized access and threats. Cybersecurity aims to ensure data confidentiality, integrity, and availability.

Question 72: What is malware?

A. A type of network protocol
B. A software program designed to harm or disrupt a computer system
C. A strong password used to protect an account
D. A type of network topology

Show Explanation

Correct Answer: B. A software program designed to harm or disrupt a computer system. Malware includes viruses, worms, ransomware, and spyware.

Question 73: What is phishing?

A. A technique for creating strong passwords
B. A method of encrypting data to protect it from unauthorized access
C. A fraudulent attempt to obtain sensitive information like usernames, passwords, and credit card details by disguising oneself as a trustworthy entity
D. A type of network device

Show Explanation

Correct Answer: C. A fraudulent attempt to obtain sensitive information like usernames, passwords, and credit card details by disguising oneself as a trustworthy entity. Phishing often occurs through emails or fake websites.

Question 74: Which of the following is NOT a safe Browse practice?

A. Clicking on links from unknown senders
B. Using strong and unique passwords for different accounts
C. Keeping software up to date with the latest security patches
D. Being cautious about sharing personal information online

Show Explanation

Correct Answer: A. Clicking on links from unknown senders. This can lead to phishing attacks or malware infections.

Question 75: What is a strong password?

A. A short password that is easy to remember
B. A password that uses a combination of uppercase and lowercase letters, numbers, and symbols
C. A password that is the same for all accounts
D. A password that is based on personal information like a birthday or pet’s name

Show Explanation

Correct Answer: B. A password that uses a combination of uppercase and lowercase letters, numbers, and symbols. Strong passwords are complex and difficult to guess.

Question 76: What is the purpose of antivirus software?

A. To encrypt data to protect it from unauthorized access
B. To prevent unauthorized access to a computer network
C. To detect and remove malware from a computer system
D. To create strong passwords

Show Explanation

Correct Answer: C. To detect and remove malware from a computer system. Antivirus software scans for and eliminates malicious programs.

Question 77: What is the function of a firewall?

A. To encrypt data to protect it from unauthorized access
B. To prevent unauthorized access to a computer network
C. To detect and remove malware from a computer system
D. To create strong passwords

Show Explanation

Correct Answer: B. To prevent unauthorized access to a computer network. Firewalls act as a barrier between a network and external threats.

Question 78: Which of the following is a common type of cyberattack?

A. Denial-of-service (DoS) attack
B. Malware infection
C. Phishing scam
D. All of the above

Show Explanation

Correct Answer: D. All of the above. These are common methods used by attackers to compromise systems or steal data.

Question 79: What is a security breach?

A. An incident that results in unauthorized access to sensitive data
B. A strong password that protects an account
C. A software application for Browse the internet
D. A type of network cable

Show Explanation

Correct Answer: A. An incident that results in unauthorized access to sensitive data. Security breaches can compromise personal or organizational information.

Question 80: Why is cybersecurity important?

A. To protect personal and sensitive information
B. To prevent financial loss
C. To maintain the reputation of individuals and organizations
D. All of the above

Show Explanation

Correct Answer: D. All of the above. Cybersecurity is crucial in today’s digital world to safeguard data and systems from various threats.

Question 81: What is a database?

A. A collection of related data organized in a structured format
B. A software application for creating presentations
C. A type of network cable
D. A programming language

Show Explanation

Correct Answer: A. A collection of related data organized in a structured format. Databases store data in a way that allows for efficient retrieval and management.

Question 82: What is a DBMS (Database Management System)?

A. A software application used to create, manage, and access databases
B. A type of network protocol
C. A hardware device used to store data
D. A programming language

Show Explanation

Correct Answer: A. A software application used to create, manage, and access databases. DBMS provides tools for interacting with databases.

Question 83: What is a table in a database?

A. A collection of related records organized in rows and columns
B. A visual representation of data using charts and graphs
C. A query used to retrieve data from a database
D. A form used to enter data into a database

Show Explanation

Correct Answer: A. A collection of related records organized in rows and columns. Tables are the fundamental building blocks of a relational database.

Question 84: What is a record in a database table?

A. A single data value within a table
B. A collection of related fields that represent a single entity
C. A query used to retrieve data from a database
D. A form used to enter data into a database

Show Explanation

Correct Answer: B. A collection of related fields that represent a single entity. A record stores all the information about a particular item.

Question 85: What is a field in a database table?

A. A single data value within a table
B. A collection of related records
C. A query used to retrieve data from a database
D. A form used to enter data into a database

Show Explanation

Correct Answer: A. A single data value within a table. A field represents a specific attribute of an entity.

Question 86: What is a primary key in a database table?

A. A field that uniquely identifies each record in a table
B. A field that contains the most important information
C. A query used to retrieve data from a database
D. A form used to enter data into a database

Show Explanation

Correct Answer: A. A field that uniquely identifies each record in a table. Primary keys ensure that each record can be distinguished.

Question 87: What is SQL (Structured Query Language)?

A. A programming language used to create and manage databases
B. A type of network protocol
C. A hardware device used to store data
D. A type of network topology

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Correct Answer: A. A programming language used to create and manage databases. SQL is used to interact with relational databases.

Question 88: Which SQL command is used to retrieve data from a database?

A. INSERT
B. UPDATE
C. DELETE
D. SELECT

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Correct Answer: D. SELECT. The SELECT command retrieves data from one or more tables based on specified criteria.

Question 89: What is a form in a database?

A. A user-friendly interface for entering and modifying data in a database
B. A query used to retrieve data from a database
C. A report used to display data from a database
D. A visual representation of data using charts and graphs

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Correct Answer: A. A user-friendly interface for entering and modifying data in a database. Forms provide a structured way to interact with data.

Question 90: What is a report in a database?

A. A formatted presentation of data from a database
B. A query used to retrieve data from a database
C. A form used to enter data into a database
D. A visual representation of data using charts and graphs

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Correct Answer: A. A formatted presentation of data from a database. Reports organize and summarize data for analysis and decision-making.

Question 91: What is Artificial Intelligence (AI)?

A. A type of network protocol
B. A programming language used to create websites
C. The simulation of human intelligence processes by machines, especially computer systems
D. A type of storage device

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Correct Answer: C. The simulation of human intelligence processes by machines, especially computer systems. AI aims to create systems that can perform tasks that typically require human intelligence.

Question 92: What is Machine Learning (ML)?

A. A type of AI that allows software applications to become more accurate in predicting outcomes without being explicitly programmed to do so
B. A type of network topology
C. A hardware device used to connect to the internet
D. A software application for creating presentations

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Correct Answer: A. A type of AI that allows software applications to become more accurate in predicting outcomes without being explicitly programmed to do so. ML algorithms learn from data and improve their performance over time.

Question 93: What is the Internet of Things (IoT)?

A. A network of interconnected devices embedded with sensors and software that can collect and exchange data
B. A type of database management system
C. A programming language used to create mobile apps
D. A type of cybersecurity threat

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Correct Answer: A. A network of interconnected devices embedded with sensors and software that can collect and exchange data. IoT connects everyday objects to the internet, enabling them to communicate and share information.

Question 94: What is Blockchain technology?

A. A distributed, immutable ledger that records transactions and tracks assets in a secure and transparent manner
B. A type of cloud storage service
C. A software application for video conferencing
D. A type of network protocol

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Correct Answer: A. A distributed, immutable ledger that records transactions and tracks assets in a secure and transparent manner. Blockchain is the underlying technology behind cryptocurrencies like Bitcoin.

Question 95: What is Virtual Reality (VR)?

A. A computer-generated simulation of a three-dimensional environment that can be interacted with in a seemingly real or physical way
B. A type of augmented reality
C. A software application for creating animations
D. A type of network device

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Correct Answer: A. A computer-generated simulation of a three-dimensional environment that can be interacted with in a seemingly real or physical way. VR immerses users in a virtual world using headsets and other devices.

Question 96: What is Augmented Reality (AR)?

A. A technology that overlays digital information onto the real world
B. A type of virtual reality
C. A software application for editing images
D. A type of network topology

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Correct Answer: A. A technology that overlays digital information onto the real world. AR enhances the real-world experience by adding computer-generated images or information.

Question 97: Which of the following is an example of an AI application?

A. Self-driving cars
B. Virtual assistants (like Siri and Alexa)
C. Image recognition software
D. All of the above

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Correct Answer: D. All of the above. AI is being used in various applications to automate tasks, analyze data, and improve decision-making.

Question 98: Which of the following is a potential benefit of IoT?

A. Increased efficiency and productivity
B. Improved healthcare and safety
C. Enhanced customer experiences
D. All of the above

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Correct Answer: D. All of the above. IoT has the potential to transform various industries and aspects of daily life.

Question 99: Which of the following is a characteristic of Blockchain technology?

A. Decentralization
B. Transparency
C. Security
D. All of the above

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Correct Answer: D. All of the above. These characteristics make Blockchain a promising technology for various applications.

Question 100: Which of the following is an example of an AR application?

A. Games like Pokémon Go
B. Retail apps that allow users to try on clothes virtually
C. Navigation apps that overlay directions onto a live camera view
D. All of the above

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Correct Answer: D. All of the above. AR is being used in various applications to enhance user experiences and provide interactive information.