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.
Test Helpful For:	ECAT Entry Test Computer Online Test Interview Questions about Computer All Universities Entrance Test Recruitments Tests

Computer Information Networks Practice Test Online With Explanation

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

Topology

Bandwidth

Router

IP Address

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

Star

Tree

Ring

Cloud

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

Store games

Block USB ports

Connect keyboards

Improve security and speed

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

Hacking

Spoofing

Sniffing

Spamming

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

Bridge

Router

Firewall

Hub

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

Difficult to install

One failure affects entire network

Slow data transfer

High cost

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

Sends data only to the required device

Filters network traffic

Broadcasts data to all connected devices

Encrypts network data

8. What is spoofing in networking?

Sending repeated emails

Resetting passwords

Faking an identity to gain unauthorized access

Encrypting files

9. Which protocol is used for browsing web pages?

HTTP

SMTP

DHCP

FTP

10. Which layer of the OSI model handles routing?

Network

Data Link

Session

Application

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

Manages file storage

Assigns IP addresses

Delivers data error-free

Provides encryption

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

Increase signal strength

Convert analog to digital

Connect devices and manage data flow

Store websites

13. What is bandwidth in networking?

Connection type

Type of cable

Data transfer rate

Signal strength

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

HDMI

USB

Wi-Fi

Ethernet

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

To connect computers

To share printers

To block unauthorized access

To improve speed

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

DNS

HTTPS

SMTP

FTP

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

Router

Bridge

Repeater

Modem

18. Which protocol is used for secure web communication?

HTTPS

SNMP

HTTP

FTP

19. What is the full form of FTP?

File Transfer Protocol

File Transmission Path

Fast Transfer Port

Full Transmission Protocol

20. What type of network covers a large city?

MAN

LAN

PAN

WAN

21. Which device amplifies weak network signals?

Switch

Router

Bridge

Repeater

22. What is an intranet?

A public network

A type of email

A private network used within an organization

An external hard drive

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

MS Paint

Notepad

Ping

Excel

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

Wi-Fi

Infrared

Ethernet

Bluetooth

25. What is a MAC address used for?

Identifying devices on a network

Compressing files

Securing passwords

Playing audio

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26. What is a packet in networking?

A software

A piece of data sent across a network

A computer virus

A type of firewall

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

Data Link

Presentation

Network

Physical

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

Faster data transfer

Resource sharing

High hardware costs

Centralized data management

29. Which of these is a valid IP address?

10.10.500.10

999.0.0.1

256.100.300.1

192.168.1.1

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

Keyboard

Modem

ISP

Network cable

31. What is topology in networking?

Network speed

Number of users

Physical layout of network

A type of protocol

32. Which topology has a central hub?

Bus

Mesh

Star

Ring

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

DHCP

FTP

HTML

DNS

34. Which device connects different networks together?

Router

Switch

Hub

Repeater

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

Track user activities

Speed up downloads

Create a secure, private connection over the internet

Reduce latency

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

Low performance

Poor signal quality

Complex setup

High latency

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

HTML

HTTP

LAN

GUI

38. What does WAN stand for?

Wide Area Network

Wide Access Network

Wireless Area Network

Web Application Network

39. What does SSL stand for in networking?

Secure Socket Layer

Speed Signal Line

Software Security Lock

Server Session Link

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

Router

Hub

Switch

Repeater

41. What does “ping” measure?

Latency or round-trip time

Packet size

Signal strength

Internet bandwidth

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

PAN

LAN

MAN

WAN

43. What does DNS stand for?

Domain Name Server

Domain Net System

Digital Network Server

Data Name System

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

Task Manager

Firewall

Web Browser

Packet Sniffer

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

Number of users

Data transfer capacity

Cable length

Network topology

46. What does NIC stand for?

Network Interface Card

Network Input Cable

Network Internet Cable

Net Internal Connection

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

DHCP

VPN

FTP

DNS

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

VPN

LAN

HTTP

FTP

49. Which protocol uses port 80?

DNS

SMTP

HTTP

FTP

50. Which cable type is commonly used in LANs?

VGA

Coaxial

HDMI

Ethernet

Page 3 of 3

51. What is a host in a network?

A game application

A virus scanner

A device that provides services

A printer

52. What is latency in a network?

Number of users

Strength of signal

Time delay in data transmission

Amount of data transferred

53. What is a node in a network?

A wire

A connecting port

A type of server

Any device connected to the network

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

Internal Path

Instant Port

Integrated Protocol

Internet Protocol

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

To watch movies

To play games

To make phone calls

To share resources

56. Which of the following uses packet switching?

Telephone lines

USB

Internet

Circuit-switched networks

57. What is the function of a modem?

Converts signals for internet

Connects printer

Encrypts files

Increases battery life

58. Which protocol is used for sending emails?

SNMP

FTP

HTTP

SMTP

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Mustansar KhanLast Updated: October 15, 2025

Important Computer Information Networks Question and Answer

Computer Information Networks Practice Test Online With Explanation

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