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Computer Information Networks Test Online

Mustansar KhanLast Updated: October 15, 2025

Important Computer Information Networks Question and Answer

Total Questions:	58
Time Allowed:	30 Minutes
Total Marks:	58
How to Attempt Test:	Please choose the right Option in MCQ-type question.
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Computer Information Networks Practice Test Online With Explanation

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1. What is the main purpose of a computer network?

To watch movies

To play games

To share resources

To make phone calls

2. Which term refers to unauthorized access to a network?

Spamming

Hacking

Sniffing

Spoofing

3. Which cable type is commonly used in LANs?

Ethernet

Coaxial

VGA

HDMI

4. Which of the following is a disadvantage of a mesh topology?

Low performance

Complex setup

Poor signal quality

High latency

5. What is a MAC address used for?

Identifying devices on a network

Playing audio

Securing passwords

Compressing files

6. What does the term “bandwidth” refer to in networks?

Network topology

Data transfer capacity

Cable length

Number of users

7. Which device amplifies weak network signals?

Bridge

Repeater

Router

Switch

8. Which of the following uses packet switching?

Telephone lines

Internet

Circuit-switched networks

USB

9. What is a host in a network?

A device that provides services

A virus scanner

A game application

A printer

10. Which topology has a central hub?

Bus

Star

Ring

Mesh

11. Which protocol uses port 80?

FTP

SMTP

HTTP

DNS

12. Which of the following is a secure way to connect to a private network over the internet?

FTP

LAN

VPN

HTTP

13. Which device is commonly used to provide wireless network access?

Router

Hub

Switch

Repeater

14. Which of these is a valid IP address?

192.168.1.1

999.0.0.1

10.10.500.10

256.100.300.1

15. Which of the following is used to assign IP addresses automatically?

DHCP

HTML

FTP

DNS

16. What is latency in a network?

Number of users

Time delay in data transmission

Amount of data transferred

Strength of signal

17. Which of these is not a benefit of using computer networks?

Centralized data management

Resource sharing

High hardware costs

Faster data transfer

18. What does SSL stand for in networking?

Speed Signal Line

Software Security Lock

Secure Socket Layer

Server Session Link

19. What is the purpose of a switch in networking?

Convert analog to digital

Connect devices and manage data flow

Store websites

Increase signal strength

20. Which of the following tools is used for network troubleshooting?

Excel

Ping

MS Paint

Notepad

21. What type of network covers a large city?

PAN

MAN

LAN

WAN

22. What is topology in networking?

Network speed

A type of protocol

Physical layout of network

Number of users

23. Which of the following is not a network topology?

Cloud

Ring

Tree

Star

24. Which device connects different networks together?

Router

Switch

Hub

Repeater

25. What is the function of a modem?

Connects printer

Increases battery life

Converts signals for internet

Encrypts files

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26. Which layer in the OSI model deals with encryption and decryption?

Data Link

Physical

Network

Presentation

27. What is an intranet?

An external hard drive

A private network used within an organization

A public network

A type of email

28. What does DNS stand for?

Data Name System

Domain Name Server

Domain Net System

Digital Network Server

29. What is the full form of FTP?

File Transmission Path

Full Transmission Protocol

File Transfer Protocol

Fast Transfer Port

30. What is a node in a network?

A wire

A connecting port

A type of server

Any device connected to the network

31. Which protocol is used for secure web communication?

HTTPS

SNMP

HTTP

FTP

32. What is spoofing in networking?

Resetting passwords

Sending repeated emails

Encrypting files

Faking an identity to gain unauthorized access

33. Which of the following is a function of a VPN?

Speed up downloads

Create a secure, private connection over the internet

Reduce latency

Track user activities

34. Which of the following is responsible for converting domain names into IP addresses?

FTP

DHCP

DNS

VPN

35. What is the full form of IP in IP address?

Integrated Protocol

Internet Protocol

Instant Port

Internal Path

36. Which of the following is not required for an internet connection?

ISP

Modem

Keyboard

Network cable

37. What is the function of a firewall in networking?

To connect computers

To block unauthorized access

To share printers

To improve speed

38. Which of the following network types connects computers in a school?

LAN

MAN

PAN

WAN

39. What does WAN stand for?

Web Application Network

Wide Area Network

Wireless Area Network

Wide Access Network

40. Which layer of the OSI model handles routing?

Application

Data Link

Session

Network

41. What does “ping” measure?

Latency or round-trip time

Internet bandwidth

Signal strength

Packet size

42. Which of the following is used to reduce network traffic?

Router

Firewall

Hub

Bridge

43. Which of the following allows multiple users to share a single internet connection?

Repeater

Modem

Router

Bridge

44. Which protocol is used for sending emails?

HTTP

SNMP

FTP

SMTP

45. Which of these is used to monitor network traffic?

Web Browser

Firewall

Task Manager

Packet Sniffer

46. What does NIC stand for?

Net Internal Connection

Network Interface Card

Network Internet Cable

Network Input Cable

47. Which protocol is used to transfer files between computers over a network?

FTP

DNS

HTTPS

SMTP

48. What is bandwidth in networking?

Signal strength

Connection type

Data transfer rate

Type of cable

49. Which protocol is used for browsing web pages?

HTTP

FTP

SMTP

DHCP

50. What is the role of the transport layer in the OSI model?

Delivers data error-free

Manages file storage

Provides encryption

Assigns IP addresses

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51. Which of the following is a type of computer network?

LAN

HTML

GUI

HTTP

52. What is the main disadvantage of a bus topology?

One failure affects entire network

Difficult to install

Slow data transfer

High cost

53. Which of the following is a wireless communication technology?

Ethernet

Wi-Fi

HDMI

USB

54. What is a packet in networking?

A piece of data sent across a network

A computer virus

A software

A type of firewall

55. Which of the following is a form of wired network communication?

Bluetooth

Infrared

Ethernet

Wi-Fi

56. What is the main use of a proxy server?

Improve security and speed

Store games

Connect keyboards

Block USB ports

57. What is the main function of a hub in a network?

Encrypts network data

Sends data only to the required device

Broadcasts data to all connected devices

Filters network traffic

58. Which of the following is used to identify a specific device on a network?

IP Address

Topology

Bandwidth

Router

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Mustansar KhanLast Updated: October 15, 2025

Computer Information Networks Test Online

Important Computer Information Networks Question and Answer

Computer Information Networks Practice Test Online With Explanation

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