Computer Science
Multiple Choice
Questions
(MCQs) – Sets 37
with Detailed Explanations
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SET 37 – Computer Science MCQs
✅ No repetition from Sets 1–36
✅ 10 completely new questions
✅ Each explanation
Level: Class 9–10 / Beginners
1. What is the Internet?
A. Single computer
B. Local network
C. Global network of networks
D. Software program
✅ Correct Answer: C
Explanation:
The Internet is a worldwide system of interconnected computer networks that allows users to share information and communicate globally. It connects millions of devices and supports services such as email, websites, cloud computing, and online learning, making it an essential part of modern life.
2. What is WWW?
A. World Wide Web
B. World Web Wire
C. Web Wide World
D. Wireless Web World
✅ Correct Answer: A
Explanation:
WWW stands for World Wide Web. It is a collection of web pages and websites accessed through the Internet using web browsers. The World Wide Web uses hyperlinks to connect information and allows users to easily navigate between pages.
3. What is a web browser?
A. Search engine
B. Hardware device
C. Software to access websites
D. Operating system
✅ Correct Answer: C
Explanation:
A web browser is software used to access, view, and interact with websites on the Internet. Examples include Google Chrome, Mozilla Firefox, and Microsoft Edge. Browsers interpret web code and display content in a user-friendly format.
4. What is a search engine?
A. Browser
B. Email service
C. Tool to find information on the web
D. Virus
✅ Correct Answer: C
Explanation:
A search engine is an online tool that helps users find information on the Internet by entering keywords. It searches billions of web pages and displays relevant results. Examples include Google and Bing, which organize web content for easy access.
5. What is a website?
A. Single web page
B. Collection of related web pages
C. Hardware tool
D. Software program
✅ Correct Answer: B
Explanation:
A website is a group of related web pages stored on a web server and accessible via the Internet. Websites can provide information, services, entertainment, or communication. Examples include educational sites, news portals, and e-commerce platforms.
6. What is URL?
A. Web browser
B. Website name
C. Address of a web resource
D. Network cable
✅ Correct Answer: C
Explanation:
URL stands for Uniform Resource Locator. It is the address used to locate resources on the Internet, such as web pages or files. A URL contains information about the protocol, domain name, and resource path.
7. What is email?
A. Social media
B. File storage
C. Electronic mail service
D. Search engine
✅ Correct Answer: C
Explanation:
Email, or electronic mail, is a digital communication service that allows users to send and receive messages over the Internet. It is fast, cost-effective, and widely used for personal, educational, and professional communication.
8. What is cloud computing?
A. Local storage
B. Offline computing
C. Using internet-based services for storage and processing
D. Hardware installation
✅ Correct Answer: C
Explanation:
Cloud computing provides access to computing resources like storage, servers, and software over the Internet. Users can store data and run applications without needing physical hardware. Examples include Google Drive and online email services.
9. What is social networking?
A. Hardware connection
B. Network cable
C. Online interaction and sharing
D. Programming language
✅ Correct Answer: C
Explanation:
Social networking involves using online platforms to communicate, share information, and build relationships. Websites like Facebook and Instagram allow users to connect with people worldwide, share content, and interact digitally.
10. What is cyber safety?
A. Hardware protection
B. Software installation
C. Safe and responsible use of the internet
D. Computer speed
✅ Correct Answer: C
Explanation:
Cyber safety refers to practices that protect users while using the Internet. It includes protecting personal information, avoiding scams, using strong passwords, and being aware of online threats. Cyber safety helps ensure secure and positive online experiences.
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