Introduction to Computer Networks Quiz - CBSE Class 9 Computer Science

Free practice quiz: Introduction to Computer Networks (CBSE Class 9 Computer Science). 20 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

This CBSE Class 9 Computer Science practice quiz has 20 multiple-choice questions on Introduction to Computer Networks, and 20 of them come with an explanation. Try the 5 sample questions below (tap an option to check yourself), then play the full quiz online. No sign-up needed.

Sample questions

1. What does WAN stand for in networking?

   1. Wide Area Network
   2. Wireless Area Network
   3. Wired Area Network
   4. Web Area Network
   Show answer

   Answer: A. Wide Area Network

   WAN stands for Wide Area Network, which refers to a network that covers a larger geographical area such as a city or a country.

2. Which protocol is used for secure communication over a computer network?

   1. HTTPS
   2. HTTP
   3. FTP
   4. SMTP
   Show answer

   Answer: A. HTTPS

   HTTPS is the secure version of HTTP, where 'S' stands for secure. It is used to encrypt data transmission over a network, ensuring secure communication.

3. What is the main purpose of the OSI model in networking?

   1. To standardize networking processes
   2. To enhance internet speed
   3. To encrypt data
   4. To provide internet access to all devices
   Show answer

   Answer: A. To standardize networking processes

   The OSI (Open Systems Interconnection) model is a conceptual framework used to standardize the functions of a telecommunication or computing system without regard to its underlying internal structure and technology.

4. How does a VPN (Virtual Private Network) enhance security?

   1. By encrypting data transmission
   2. By speeding up data transmission
   3. By connecting only trusted devices
   4. By offering free internet access
   Show answer

   Answer: A. By encrypting data transmission

   A VPN enhances security by encrypting data transmission between the user's device and the VPN server, protecting the data from being accessed by unauthorized users.

5. Which protocol is used to send email messages?

   1. SMTP
   2. FTP
   3. HTTP
   4. IMAP
   Show answer

   Answer: A. SMTP

   SMTP stands for Simple Mail Transfer Protocol and it is used to send emails from a client to a server or between servers.

More questions in this quiz

Answers and explanations are in the full quiz.

1. What is a computer network?
2. Which device is used to connect multiple wireless networks?
3. What is a node in a network?
4. Why are IP addresses used in networking?
5. Which of the following represents a LAN?
6. What is the function of a switch in a network?
7. In networking, what does LAN stand for?
8. What type of network is the Internet?
9. Which layer of the OSI model is responsible for data compression?
10. What is the primary function of DNS (Domain Name System) in networking?
11. Which networking device is used to regenerate signals?
12. What is the main purpose of a firewall in network security?
13. What does bandwidth refer to in networking?
14. What is the main characteristic of a peer-to-peer network?
15. What is a packet in terms of network communication?

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