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Computer Networking Quiz

Total questions: 165

Worksheet time: 1hrs 23mins

Name
Class
Date
1.

What is a computer network?

a)

A group of independent computers connected by wireless media only

b)

A group of computers that operate as standalone systems

c)

A collection of interconnected computing devices sharing resources

d)

A collection of software running in isolation

2.

The main purpose of networking is:

a)

Editing videos

b)

Data transfer and resource sharing

c)

Programming

d)

Installing operating systems

3.

Which of the following is an example of a network application?

a)

Microsoft Word

b)

Adobe Photoshop

c)

File sharing over LAN

d)

Calculator

4.

What is one major advantage of computer networks?

a)

Less power consumption

b)

Increased software usage

c)

Faster individual computation

d)

Resource sharing

5.

Which of the following is NOT a benefit of computer networking?

a)

Resource sharing

b)

High data redundancy

c)

Centralized data management

d)

Backup and recovery

6.

Which protocol is used for email communication?

a)

HTTP

b)

SMTP

c)

FTP

d)

SNMP

7.

Which of these is an application layer protocol?

a)

IP

b)

TCP

c)

DNS

d)

Ethernet

8.

Which of the following is an example of client-server architecture?

a)

Peer-to-peer file sharing

b)

Email server and client

c)

Direct cable connection

d)

USB to serial connection

9.

Which networking device forwards packets based on IP addresses?

a)

Switch

b)

Router

c)

Hub

d)

Modem

10.

Which of these is not typically shared over a network?

a)

Printer

b)

Files

c)

CPU registers

d)

Internet connection

11.

In which configuration does each device have a dedicated point-to-point link to every other device?

a)

Mesh

b)

Star

c)

Ring

d)

Bus

12.

Which line configuration requires the most cabling?

a)

Bus

b)

Ring

c)

Mesh

d)

Star

13.

Which line configuration has a single communication line shared by all devices?

a)

Star

b)

Mesh

c)

Ring

d)

Bus

14.

In star topology, failure of the central hub results in:

a)

Failure of only one node

b)

Full network failure

c)

Continued operation

d)

Failure of outer ring only

15.

Which topology has a token-passing mechanism?

a)

Bus

b)

Star

c)

Ring

d)

Mesh

16.

Which configuration is best for fault tolerance?

a)

Mesh

b)

Bus

c)

Ring

d)

Star

17.

Which configuration is least expensive?

a)

Mesh

b)

Ring

c)

Bus

d)

Star

18.

Line configuration where one device is directly connected to another:

a)

Multipoint

b)

Point-to-point

c)

Ring

d)

Mesh

19.

A multipoint connection allows:

a)

Only two devices

b)

Dedicated channel per device

c)

Multiple devices sharing a link

d)

One-way communication

20.

Which configuration makes troubleshooting easier?

a)

Mesh

b)

Star

c)

Ring

d)

Bus

21.

Which topology connects all devices in a closed loop?

a)

Ring

b)

Star

c)

Mesh

d)

Bus

22.

What topology uses a central hub?

a)

Bus

b)

Star

c)

Ring

d)

Tree

23.

Which topology is most redundant?

a)

Star

b)

Mesh

c)

Bus

d)

Ring

24.

Which topology is easiest to install and cost-effective for small networks?

a)

Bus

b)

Star

c)

Mesh

d)

Ring

25.

Which topology is a hybrid of star and bus topologies?

a)

Tree

b)

Mesh

c)

Ring

d)

Star

26.

Failure of a single cable affects entire network in:

a)

Bus topology

b)

Mesh topology

c)

Tree topology

d)

Star topology

27.

Which topology is ideal for large networks?

a)

Mesh

b)

Tree

c)

Bus

d)

Ring

28.

In which topology is troubleshooting the most difficult?

a)

Ring

b)

Bus

c)

Mesh

d)

Star

29.

Which topology is commonly used in home networks?

a)

Ring

b)

Mesh

c)

Star

d)

Bus

30.

Which topology needs a terminator at the end of the cable?

a)

Star

b)

Bus

c)

Ring

d)

Mesh

31.

In simplex mode, data flows:

a)

In both directions

b)

In one direction only

c)

Alternately in both directions

d)

Through a central node only

32.

Which of the following is an example of simplex transmission?

a)

Telephone

b)

Walkie-talkie

c)

Television broadcast

d)

Chat application

33.

Half-duplex mode allows data transmission:

a)

Simultaneously in both directions

b)

In one direction only

c)

Alternately in both directions

d)

Only through hubs

34.

Full-duplex mode enables:

a)

One-way communication

b)

Simultaneous two-way communication

c)

Limited data transmission

d)

Intermittent communication

35.

Walkie-talkies operate in which transmission mode?

a)

Simplex

b)

Full-duplex

c)

Half-duplex

d)

Broadband

36.

Which of these provides the highest efficiency?

a)

Simplex

b)

Half-duplex

c)

Full-duplex

d)

Asynchronous

37.

In full-duplex mode, devices:

a)

Share the same channel

b)

Use separate channels

c)

Alternate use of same channel

d)

Work independently

38.

A computer monitor is an example of:

a)

Half-duplex

b)

Full-duplex

c)

Simplex

d)

Serial

39.

Which mode is used in LAN-based video conferencing?

a)

Simplex

b)

Half-duplex

c)

Full-duplex

d)

None

40.

In half-duplex mode, communication is:

a)

Simultaneous

b)

Synchronous

c)

Two-way but one at a time

d)

One-way only

41.

LAN stands for:

a)

Large Area Network

b)

Local Access Network

c)

Local Area Network

d)

Long Area Network

42.

Which network spans cities and is smaller than WAN?

a)

LAN

b)

PAN

c)

MAN

d)

SAN

43.

WAN is used for:

a)

Connecting devices in the same room

b)

City-wide communication

c)

Interconnecting cities and countries

d)

Home automation

44.

Which network typically covers a few kilometers?

a)

LAN

b)

WAN

c)

MAN

d)

VPN

45.

Ethernet is commonly used in:

a)

WAN

b)

MAN

c)

LAN

d)

CAN

46.

Which network requires the use of a router to connect distant locations?

a)

LAN

b)

WAN

c)

PAN

d)

Intranet

47.

The Internet is an example of a:

a)

LAN

b)

MAN

c)

WAN

d)

PAN

48.

Which of the following networks uses telephone lines?

a)

LAN

b)

WAN

c)

MAN

d)

PAN

49.

Which network is used within an organization across multiple offices in a city?

a)

LAN

b)

MAN

c)

WAN

d)

PAN

50.

A home Wi-Fi setup is typically:

a)

LAN

b)

WAN

c)

MAN

d)

None

51.

Which network is best suited for a university campus?

a)

LAN

b)

MAN

c)

WAN

d)

PAN

52.

Which of the following is NOT a type of network?

a)

PAN

b)

CAN

c)

TAN

d)

LAN

53.

Which of the following is NOT a type of network?

a)

PAN

b)

CAN

c)

TAN

d)

LAN

54.

The largest network is:

a)

MAN

b)

WAN

c)

LAN

d)

VPN

55.

A computer network connecting multiple hospitals in a city is:

a)

LAN

b)

MAN

c)

PAN

d)

VAN

56.

Which protocol is used for web browsing?

a)

SMTP

b)

FTP

c)

HTTP

d)

POP

57.

TCP stands for:

a)

Transmission Central Protocol

b)

Transport Control Protocol

c)

Transmission Control Protocol

d)

Traffic Control Protocol

58.

Which protocol is used to transfer files?

a)

FTP

b)

DNS

c)

DHCP

d)

HTTP

59.

Which protocol is used to assign IP addresses automatically?

a)

IP

b)

DNS

c)

DHCP

d)

ARP

60.

Which protocol resolves domain names to IP addresses?

a)

DNS

b)

FTP

c)

DHCP

d)

SNMP

61.

Which protocol is responsible for reliable delivery of packets?

a)

UDP

b)

TCP

c)

IP

d)

ARP

62.

IP is responsible for:

a)

Packet addressing and routing

b)

Email delivery

c)

Web development

d)

Data encryption

63.

Which protocol does not guarantee delivery?

a)

TCP

b)

UDP

c)

FTP

d)

DNS

64.

HTTPS uses:

a)

TCP only

b)

UDP

c)

SSL/TLS for encryption

d)

ARP

65.

Which protocol is used to monitor network devices?

a)

SMTP

b)

SNMP

c)

HTTP

d)

FTP

66.

Which of these is an analog signal?

a)

Morse Code

b)

Sine wave

c)

Binary stream

d)

ASCII characters

67.

Digital signals use:

a)

Continuous values

b)

Discrete values

c)

Sine waves

d)

Radio pulses

68.

In analog signals, data is represented as:

a)

Discrete values

b)

ASCII characters

c)

Continuous waves

d)

Pulse-width modulation

69.

Digital signals are made up of:

a)

Amplitude and frequency

b)

0s and 1s

c)

Continuous values

d)

Voltage noise

70.

Which is better for noise immunity?

a)

Analog signals

b)

Digital signals

c)

Both are same

d)

None

71.

Which signal is used in most computer systems?

a)

Analog

b)

Digital

c)

Hybrid

d)

Microwave

72.

Analog signals are used in:

a)

Televisions

b)

Computers

c)

Mobile processors

d)

Digital cameras

73.

Digital signals are measured in:

a)

Hertz

b)

Volts

c)

Bits

d)

Decibels

74.

A sine wave is an example of:

a)

Analog signal

b)

Digital signal

c)

Random signal

d)

Triangular wave

75.

Noise affects which signals more?

a)

Digital

b)

Analog

c)

Neither

d)

Both equally

76.

Which of these is a guided medium?

a)

Air

b)

Optical fiber

c)

Bluetooth

d)

Infrared

77.

Unguided media is also known as:

a)

Wired

b)

Wireless

c)

Copper wire

d)

Twisted pair

78.

Which guided medium has the highest bandwidth?

a)

Coaxial cable

b)

Optical fiber

c)

Twisted pair

d)

Microwave

79.

Twisted pair cables are mostly used in:

a)

Satellite links

b)

LANs

c)

Cellular towers

d)

Optical switches

80.

Coaxial cables consist of:

a)

Two twisted wires

b)

Central copper wire and outer shielding

c)

Plastic tubing

d)

Parallel conductors

81.

Which media is most immune to electromagnetic interference?

a)

Twisted pair

b)

Coaxial cable

c)

Optical fiber

d)

Infrared

82.

Microwave transmission is:

a)

Guided

b)

Wireless

c)

Wired

d)

Optical

83.

Which medium is suitable for long-distance high-speed data?

a)

Twisted pair

b)

Optical fiber

c)

Coaxial cable

d)

Infrared

84.

Which of the following uses line-of-sight communication?

a)

Twisted pair

b)

Microwave

c)

Coaxial

d)

Optical

85.

Which transmission medium is most secure from tapping?

a)

Optical fiber

b)

Coaxial

c)

Twisted pair

d)

Microwave

86.

Which wireless medium is used in TV remotes?

a)

Infrared

b)

Bluetooth

c)

Wi-Fi

d)

Satellite

87.

Which media type is used in broadband internet connections via cable TV?

a)

Coaxial cable

b)

Optical fiber

c)

Twisted pair

d)

Microwave

88.

Which wireless media has very high frequency and short range?

a)

Wi-Fi

b)

Bluetooth

c)

Infrared

d)

Satellite

89.

Which of the following uses satellites?

a)

Bluetooth

b)

Microwave

c)

Infrared

d)

WAN

90.

Which is most suitable for undersea cabling?

a)

Twisted pair

b)

Coaxial

c)

Optical fiber

d)

Microwave

91.

Which wave type is associated with analog signals?

a)

Square

b)

Pulse

c)

Sine

d)

Triangular

92.

Which of the following is false about digital signals?

a)

Discrete levels

b)

Susceptible to attenuation

c)

Easier to process

d)

Infinite resolution

93.

The unit of signal frequency is:

a)

Volts

b)

Bits

c)

Hertz

d)

Decibels

94.

Which term relates to the rate of signal change?

a)

Amplitude

b)

Frequency

c)

Phase

d)

Bit rate

95.

Which parameter measures signal height?

a)

Phase

b)

Frequency

c)

Amplitude

d)

Baud rate

96.

Which term defines the shift of a signal wave?

a)

Amplitude

b)

Frequency

c)

Phase

d)

Time base

97.

Which is more error-tolerant?

a)

Analog communication

b)

Digital communication

c)

Microwave communication

d)

Analog storage

98.

Analog signals have:

a)

High security

b)

Infinite states

c)

Binary logic

d)

Fixed voltages

99.

Which signal type is used in modern computers?

a)

Analog

b)

Hybrid

c)

Digital

d)

Acoustic

100.

Which of the following is a guided medium?

a)

Microwave

b)

Infrared

c)

Optical fiber

d)

Bluetooth

101.

Unguided media is also known as:

a)

Wired media

b)

Wireless media

c)

Coaxial

d)

Guided signal

102.

Which of the following uses line-of-sight communication?

a)

Coaxial cable

b)

Optical fiber

c)

Microwave

d)

Twisted pair

103.

Which transmission medium is immune to electromagnetic interference?

a)

Twisted pair

b)

Coaxial cable

c)

Optical fiber

d)

Infrared

104.

A common medium for LANs is:

a)

Infrared

b)

Coaxial cable

c)

Twisted pair

d)

Satellite

105.

Which of these is not a guided medium?

a)

Twisted pair

b)

Coaxial cable

c)

Microwave

d)

Optical fiber

106.

Guided media uses:

a)

Light only

b)

Vacuum

c)

Physical cables

d)

Wireless routers

107.

Unguided transmission occurs through:

a)

Metal wires

b)

Fiber cores

c)

Air

d)

Water

108.

The most secure transmission medium is:

a)

Coaxial cable

b)

Twisted pair

c)

Infrared

d)

Optical fiber

109.

Twisted pair cables are used for:

a)

Satellite uplink

b)

Long-haul fiber links

c)

Local Ethernet networks

d)

Wireless signal boost

110.

Which medium is best for undersea cables?

a)

Twisted pair

b)

Coaxial

c)

Optical fiber

d)

Infrared

111.

Coaxial cables are used in:

a)

FM Radio

b)

Wi-Fi

c)

Cable TV

d)

Satellite TV

112.

Which medium has the highest data rate?

a)

Coaxial

b)

Optical fiber

c)

Twisted pair

d)

Microwave

113.

The signal in a fiber optic cable is:

a)

Electrical

b)

Acoustic

c)

Light

d)

Microwave

114.

Which is not a characteristic of twisted pair?

a)

High bandwidth

b)

Inexpensive

c)

Easily installed

d)

Susceptible to interference

115.

Infrared transmission is used in:

a)

Cell towers

b)

TV remotes

c)

DSL connections

d)

Ethernet

116.

Which medium is mostly used in telecom backbones?

a)

Coaxial

b)

Twisted pair

c)

Microwave

d)

Optical fiber

117.

What is the core of an optical fiber made of?

a)

Copper

b)

Plastic

c)

Glass

d)

Aluminum

118.

Bluetooth technology uses:

a)

Guided media

b)

Twisted pair

c)

Unguided radio waves

d)

Optical fiber

119.

Which of the following is affected by weather?

a)

Optical fiber

b)

Twisted pair

c)

Microwave

d)

Coaxial

120.

Which medium supports the longest distances without signal loss?

a)

Twisted pair

b)

Microwave

c)

Coaxial

d)

Optical fiber

121.

In fiber optics, signal loss is minimized by:

a)

Modulation

b)

Total internal reflection

c)

Amplification

d)

Carrier switching

122.

What causes signal loss in copper cables?

a)

Light dispersion

b)

Absorption

c)

Attenuation

d)

Reflection

123.

Wireless LANs typically use:

a)

Coaxial cable

b)

Infrared

c)

Radio waves

d)

Fiber optics

124.

Satellite communication is based on:

a)

Light-based signals

b)

High-frequency guided cables

c)

Microwave transmission

d)

Electric pulses

125.

A computer network is:

a)

A standalone computing system

b)

A set of interconnected computers

c)

A mainframe system

d)

An isolated group of PCs

126.

Which of the following is a network application?

a)

MS Word

b)

Google Drive

c)

Calculator

d)

Disk Defragmenter

127.

Key purpose of a network is:

a)

Word processing

b)

Standalone performance

c)

Resource sharing

d)

Security updates

128.

A common network use is:

a)

Installing software

b)

File and printer sharing

c)

Keyboard switching

d)

Opening CD drives

129.

Which is NOT a network benefit?

a)

Centralized data

b)

Faster computation

c)

Communication

d)

Backup and recovery

130.

Email is an example of:

a)

Standalone app

b)

Networked application

c)

Cloud security

d)

File compressor

131.

Which is NOT a network device?

a)

Switch

b)

Hub

c)

Router

d)

Monitor

132.

Which protocol is used for email sending?

a)

HTTP

b)

SMTP

c)

FTP

d)

SSH

133.

What enables voice communication over the Internet?

a)

VoIP

b)

POP3

c)

FTP

d)

DNS

134.

Which protocol is used for remote login?

a)

DNS

b)

Telnet

c)

SMTP

d)

HTTP

135.

Which configuration connects only two devices directly?

a)

Point-to-point

b)

Mesh

c)

Ring

d)

Multipoint

136.

Multipoint line configuration allows:

a)

Only two devices

b)

Direct fiber connection

c)

Multiple devices sharing one link

d)

Full-duplex only

137.

Which is more efficient in cabling?

a)

Mesh

b)

Star

c)

Ring

d)

Bus

138.

Which config offers fault tolerance?

a)

Ring

b)

Mesh

c)

Star

d)

Bus

139.

Central device failure leads to network breakdown in:

a)

Mesh

b)

Star

c)

Ring

d)

Bus

140.

Topology with a central hub:

a)

Ring

b)

Bus

c)

Star

d)

Mesh

141.

Topology with a token passing mechanism:

a)

Bus

b)

Ring

c)

Star

d)

Mesh

142.

Topology connecting every device to every other:

a)

Star

b)

Mesh

c)

Ring

d)

Tree

143.

Bus topology requires:

a)

Token

b)

Star configuration

c)

Terminators

d)

Switches

144.

Tree topology is a combination of:

a)

Mesh + Ring

b)

Star + Bus

c)

Star + Ring

d)

Ring + Bus

145.

Which topology is best suited for troubleshooting?

a)

Star

b)

Mesh

c)

Ring

d)

Bus

146.

Topology used in cable broadband:

a)

Ring

b)

Star

c)

Bus

d)

Tree

147.

If a single cable breaks, the whole network fails in:

a)

Star

b)

Bus

c)

Mesh

d)

Tree

148.

Most secure and fault-tolerant topology:

a)

Ring

b)

Bus

c)

Star

d)

Mesh

149.

Topology mostly used in schools:

a)

Mesh

b)

Tree

c)

Star

d)

Bus

150.

Simplex mode is:

a)

Bidirectional

b)

One-directional only

c)

Alternating direction

d)

Wireless on

151.

Which is the most efficient mode?

a)

Simplex

b)

Half-duplex

c)

Full-duplex

d)

None

152.

Example of half-duplex:

a)

Chat app

b)

TV

c)

Radio

d)

Walkie-talkie

153.

In full-duplex, data can flow:

a)

One-way

b)

Alternately

c)

Both directions at once

d)

At night only

154.

Best for live video calls:

a)

Simplex

b)

Half-duplex

c)

Full-duplex

d)

Bus

155.

Transmission mode used in radio:

a)

Full-duplex

b)

Simplex

c)

Half-duplex

d)

Asynchronous

156.

LAN stands for:

a)

Local Application Network

b)

Local Area Network

c)

Logical Area Node

d)

Large Area Network

157.

WAN spans:

a)

A room

b)

A campus

c)

A country or globe

d)

A home

158.

Home Wi-Fi is usually:

a)

WAN

b)

LAN

c)

MAN

d)

SAN

159.

Largest type of network:

a)

PAN

b)

MAN

c)

WAN

d)

LAN

160.

Which OSI layer ensures error-free delivery?

a)

Network

b)

Data Link

c)

Physical

d)

Transport

161.

Which layer handles MAC addressing?

a)

Network

b)

Data Link

c)

Physical

d)

Application

162.

Which layer is responsible for logical addressing (IP)?

a)

Data Link

b)

Network

c)

Session

d)

Transport

163.

Which OSI layer interacts with user software?

a)

Session

b)

Network

c)

Application

d)

Data Link

164.

How many layers are there in the OSI model?

a)

5

b)

6

c)

7

d)

8

165.

Which layer is responsible for domain name resolution in TCP/IP?

a)

Internet

b)

Application

c)

Network Access

d)

Transport

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