Computer Science

Network Topologies, Network Types, Protocols & Web Services MCQs | 25 Practice Questions with Answers | CBSE Class 12 Computer Science

Class 12 · Computer Science

Network Topologies, Network Types, Protocols & Web Services MCQs (25 Questions)

Practice these multiple-choice questions to strengthen your understanding of Network Topologies, Network Types, Network Protocols, and Web Services. Click Show Answer to reveal the correct answer and explanation.

Q1. Which type of network covers a very small area, such as around a person?

A. LAN
B. MAN
C. PAN
D. WAN

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Answer: C. PAN

Explanation: A Personal Area Network (PAN) connects devices within a few meters of an individual.

Q2. Which network type is commonly used within a school or office building?

A. PAN
B. LAN
C. MAN
D. WAN

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Answer: B. LAN

Explanation: A Local Area Network (LAN) covers a limited geographical area such as a school, office, or building.

Q3. Which network type covers an entire city?

A. PAN
B. LAN
C. MAN
D. WAN

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Answer: C. MAN

Explanation: A Metropolitan Area Network (MAN) connects networks across a city or metropolitan area.

Q4. Which network type covers the largest geographical area?

A. PAN
B. LAN
C. MAN
D. WAN

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Answer: D. WAN

Explanation: A Wide Area Network (WAN) spans large geographical areas such as countries or continents.

Q5. The Internet is the best example of:

A. PAN
B. LAN
C. MAN
D. WAN

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Answer: D. WAN

Explanation: The Internet is the world's largest Wide Area Network.

Q6. In which topology are all devices connected to a single backbone cable?

A. Star Topology
B. Tree Topology
C. Bus Topology
D. Ring Topology

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Answer: C. Bus Topology

Explanation: Bus topology uses a single communication cable called the backbone.

Q7. In which topology are all devices connected to a central hub or switch?

A. Bus Topology
B. Star Topology
C. Tree Topology
D. Mesh Topology

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Answer: B. Star Topology

Explanation: In a star topology, every device is directly connected to a central hub or switch.

Q8. Which topology combines characteristics of bus and star topologies?

A. Tree Topology
B. Ring Topology
C. Bus Topology
D. Point-to-Point Topology

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Answer: A. Tree Topology

Explanation: Tree topology has a hierarchical structure and combines features of both bus and star topologies.

Q9. Which topology is easiest to expand by adding new devices?

A. Bus Topology
B. Star Topology
C. Tree Topology
D. All of these

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Answer: B. Star Topology

Explanation: New devices can easily be added to a star topology by connecting them to the central hub or switch.

Q10. Which topology is affected if the backbone cable fails?

A. Star Topology
B. Tree Topology
C. Bus Topology
D. Mesh Topology

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Answer: C. Bus Topology

Explanation: Failure of the backbone cable disrupts communication for all devices in a bus topology.

Q11. Which protocol is used to transfer web pages over the Internet?

A. FTP
B. SMTP
C. HTTP
D. POP3

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Answer: C. HTTP

Explanation: HTTP (HyperText Transfer Protocol) is used to transfer web pages between a web browser and a web server.

Q12. Which protocol provides secure communication over the web?

A. HTTP
B. HTTPS
C. FTP
D. TELNET

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Answer: B. HTTPS

Explanation: HTTPS (HyperText Transfer Protocol Secure) encrypts data exchanged between the browser and the web server.

Q13. Which protocol is mainly used for transferring files between computers?

A. SMTP
B. FTP
C. HTTP
D. POP3

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Answer: B. FTP

Explanation: FTP (File Transfer Protocol) is used to upload and download files over a network.

Q14. Which protocol is used to send e-mails?

A. POP3
B. FTP
C. SMTP
D. HTTP

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Answer: C. SMTP

Explanation: SMTP (Simple Mail Transfer Protocol) is used to send e-mails.

Q15. Which protocol is commonly used to receive e-mails?

A. SMTP
B. POP3
C. FTP
D. PPP

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Answer: B. POP3

Explanation: POP3 (Post Office Protocol Version 3) is used by e-mail clients to receive e-mails from a mail server.

Q16. Which protocol is considered the foundation of Internet communication?

A. FTP
B. TCP/IP
C. HTTP
D. SMTP

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Answer: B. TCP/IP

Explanation: TCP/IP is the standard protocol suite that enables communication over the Internet.

Q17. PPP stands for:

A. Personal Point Protocol
B. Public Packet Protocol
C. Point-to-Point Protocol
D. Private Path Protocol

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Answer: C. Point-to-Point Protocol

Explanation: PPP (Point-to-Point Protocol) establishes a direct communication link between two network devices.

Q18. Which protocol is used for remote login to another computer over a network?

A. TELNET
B. FTP
C. HTTP
D. SMTP

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Answer: A. TELNET

Explanation: TELNET allows users to log in and access a remote computer over a network.

Q19. VoIP stands for:

A. Voice over Internet Protocol
B. Video over Internet Protocol
C. Voice over Internal Program
D. Virtual Online Internet Protocol

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Answer: A. Voice over Internet Protocol

Explanation: VoIP enables voice communication over Internet Protocol networks.

Q20. Which protocol is correctly matched with its primary use?

A. FTP — Sending e-mails
B. SMTP — File Transfer
C. POP3 — Receiving e-mails
D. HTTP — Remote Login

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Answer: C. POP3 — Receiving e-mails

Explanation: POP3 is used to receive e-mails. FTP transfers files, SMTP sends e-mails, and TELNET is used for remote login.

Q21. WWW stands for:

A. World Wide Web
B. World Web Window
C. Wide World Web
D. Web World Wide

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Answer: A. World Wide Web

Explanation: The World Wide Web (WWW) is a collection of interlinked web pages that can be accessed over the Internet.

Q22. HTML stands for:

A. Hyper Transfer Markup Language
B. Hyper Text Markup Language
C. High Text Markup Language
D. Hyper Text Machine Language

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Answer: B. Hyper Text Markup Language

Explanation: HTML is the standard markup language used to create and structure web pages.

Q23. XML stands for:

A. Extended Markup Language
B. Extensible Markup Language
C. Extra Markup Language
D. External Markup Language

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Answer: B. Extensible Markup Language

Explanation: XML is used to store and transport data in a structured and self-descriptive format.

Q24. Which of the following is the correct sequence of a URL?

A. https://www.example.com
B. www://example
C. http/example.com
D. example.www.com://https

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Answer: A. https://www.example.com

Explanation: A URL (Uniform Resource Locator) specifies the address of a resource on the Internet and generally includes the protocol and domain name.

Q25. Which statement about web services is correct?

A. A domain name is the human-readable name of a website.
B. A web browser is software used to access websites.
C. A web server stores and delivers web pages to users.
D. All of these.

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Answer: D. All of these.

Explanation: A domain name identifies a website, a web browser is used to access websites, and a web server stores and delivers web content. Web hosting provides the server space needed to make a website available on the Internet.

Answer Key

Q.No. Answer Q.No. Answer Q.No. Answer
1C 10C 19A
2B 11C 20C
3C 12B 21A
4D 13B 22B
5D 14C 23B
6C 15B 24A
7B 16B 25D
8A 17C
9B 18A

Practice Tips

  • Remember the four major network types:
    • PAN – Personal Area Network
    • LAN – Local Area Network
    • MAN – Metropolitan Area Network
    • WAN – Wide Area Network (Internet is the largest example)
  • Revise the characteristics of common network topologies:
    • Bus Topology – Single backbone cable.
    • Star Topology – Central hub or switch.
    • Tree Topology – Hierarchical structure combining bus and star topology.
  • Memorize the important protocols:
    • HTTP – Transfer web pages.
    • HTTPS – Secure web communication.
    • FTP – File transfer.
    • SMTP – Sending e-mails.
    • POP3 – Receiving e-mails.
    • TCP/IP – Internet communication.
    • PPP – Point-to-Point communication.
    • TELNET – Remote login.
    • VoIP – Voice communication over the Internet.
  • Know the basic web technologies:
    • WWW – Collection of interlinked web pages.
    • HTML – Creates web pages.
    • XML – Stores and transports structured data.
    • URL – Address of a web resource.
    • Domain Name – Human-readable website name.
    • Website – Collection of related web pages.
    • Web Browser – Software used to access websites.
    • Web Server – Stores and delivers web pages.
    • Web Hosting – Service that hosts websites on Internet-connected servers.
  • Practice identifying the correct protocol or network device for different real-life scenarios, as application-based questions are frequently asked in CBSE examinations.