Computer Network Online Test - MCQ Questions

Welcome to our Computer Network Online Test! This quiz consists of 25 multiple-choice questions designed to evaluate your understanding of computer networking concepts. Whether you are a student, an IT professional, or simply someone interested in learning how different computers and devices communicate, this test covers a wide range of topics. From the basics of network models and topologies to more complex issues like IP addressing, routing protocols, and network security, this quiz will challenge your knowledge and help you identify areas for improvement. 

Ready to test your networking skills? Dive in and see how well you grasp the fundamentals and intricacies of computer networks!

1. What is a computer network?

a) A single computer
b) A group of computers that are connected and share resources
c) A type of software
d) A web page

2. What does LAN stand for?

a) Large Access Network
b) Local Area Network
c) Long Antenna Node
d) Light Access Node

3. What is the purpose of a router in a network?

a) To store data
b) To supply power to the network
c) To manage traffic between different networks
d) To provide storage for emails

4. What is a firewall?

a) A physical wall that protects a computer
b) Software or hardware that blocks unauthorized access to a network
c) A type of malware
d) A tool for building websites

5. What is the Internet?

a) A type of computer
b) A single network
c) A global network of networks
d) A government agency

6. What does an IP address stand for?

a) Internet Process address
b) Internet Protocol address
c) Internal Phone address
d) Initial Protocol address

7. What is a VPN?

a) Virtual Private Network
b) Variable Phone Number
c) Visual Public Network
d) Virtual Phone Network

8. What is bandwidth?

a) The weight of the network
b) The storage capacity of a hard drive
c) The maximum rate of data transfer across a network
d) The length of the network cables

9. What is a network protocol?

a) A formal agreement for social events
b) A set of rules that govern data communications
c) A document that outlines network security
d) A plan for installing network cables

10. What does HTTPS stand for?

a) Hypertext Transfer Protocol Secure
b) Hyper Text Transfer Phone Secure
c) High Transfer Protocol Secure
d) Hypertext Transfer Protocol Speed

11. What is the main function of a network switch?

a) To provide wireless connectivity
b) To regulate the power supply in a network
c) To connect devices within a single network segment
d) To connect different Internet service providers

12. What is DNS?

a) Dynamic Network Service
b) Digital Network Service
c) Domain Name System
d) Data Network System

13. What is network latency?

a) The speed at which a network operates
b) The delay before a transfer of data begins following an instruction for its transfer
c) The maximum data transfer rate
d) The time it takes for a network to recover from a failure

14. What is an Ethernet?

a) A type of computer virus
b) A global network of businesses
c) A technology for connecting computers within a local area network
d) A software program that manages emails

15. What is the function of a modem in a network?

a) To create emails
b) To provide storage for network software
c) To convert digital data to analog for transmission over telephone lines
d) To supply power to the network

16. What is a subnet mask?

a) A type of security software
b) A mask that hides the IP address of computers
c) A number that divides an IP address into network and host parts
d) A device that filters web content

17. What is the World Wide Web?

a) A type of malware
b) The Internet
c) A service that allows documents to be connected to each other by hypertext links
d) A computer network for worldwide government communication

18. What does SSL stand for?

a) Secure Socket Layer
b) Standard Security Level
c) System Software Language
d) Serial Service Line

19. What is the main benefit of using a mesh network?

a) Increased operational complexity
b) Lower internet speeds
c) High redundancy and reliability
d) Reduced security

20. What is a gateway in a computer network?

a) A malicious software program
b) A device that enables communication between different networks
c) A password-protected website
d) A type of antenna

21. What is an SSID?

a) Secure Software Installation Disk
b) Standard Signal Interface Device
c) Service Set Identifier
d) System Security ID

22. What is data encryption?

a) Compressing data to save space
b) Converting data into a secure code to prevent unauthorized access
c) Increasing the speed of data transmission
d) Permanently deleting data

23. What does VoIP stand for, and what is it?

a) Voice over Internet Protocol: a technology that allows you to make voice calls using a broadband Internet connection
b) Variable Online Internet Protocol: a changing set of rules for Internet use
c) Visual Output Input Panel: a type of user interface
d) Valid Operation Input Protocol: a type of software validation

24. What is the primary use of SNMP?

a) To check the weather via satellite networks
b) To manage devices on IP networks
c) To enhance the graphics of video games
d) To encrypt email messages

25. What does the term 'packet' refer to in a network?

a) A type of network router
b) A piece of data sent over a computer network
c) A tool for network installation
d) A security code for network access