Computer Networks: Master the Fundamentals for Year 11 Computing

Question 1

In the TCP/IP model, what is the Network Layer's main purpose? How does it facilitate communication between devices on different networks?

Accepted Answer

The Network Layer defines a set of protocols that enable devices from different networks to communicate effectively.

Answer

The Network Layer directs data packets within a single network, ensuring they reach their destination.

Answer

The Network Layer assigns unique IP addresses to devices, allowing them to be identified and located on a network.

Question 2

Why is regular network monitoring and prompt issue resolution crucial for effective network management?

Accepted Answer

To minimize disruptions and user inconvenience

Answer

To reduce reliance on specialized tools

Answer

To eliminate the need for network administrators

Answer

To increase maintenance costs

Question 3

What are the key factors that have driven the evolution of network technologies and protocols? How have these factors influenced the design and implementation of computer networks?

Accepted Answer

Increased demand for bandwidth and speed, leading to faster network technologies.

Accepted Answer

Evolving cyber threats, necessitating enhanced security measures.

Accepted Answer

Introduction of new applications and services, requiring specialized protocols and technologies.

Answer

Solely driven by the desire to reduce network deployment and maintenance costs.

Question 4

How do network traffic patterns affect network performance? Describe methods for analyzing traffic patterns and their use in network design and management.

Accepted Answer

Techniques for analyzing traffic patterns include packet sniffing and flow analysis.

Answer

Network traffic patterns have no impact on network performance.

Answer

Traffic analysis techniques are not useful in network design and management.

Question 5

Which of the following is NOT a common type of network security measure?

Accepted Answer

Data backup

Answer

Firewall

Answer

Antivirus software

Answer

Encryption

Question 6

In a star network topology, which device acts as the central connection point for all other devices?

Accepted Answer

Hub

Answer

Router

Answer

Switch

Answer

Gateway

Question 7

Which protocol is specifically designed for transmitting email messages?

Accepted Answer

SMTP

Answer

HTTP

Answer

FTP

Answer

TCP

Question 8

What is the primary purpose of the Internet?

Accepted Answer

Providing access to a vast array of global information and services

Answer

Connecting devices within a limited local area

Answer

Ensuring the secure transmission of confidential data

Answer

Managing software updates and installations

Question 9

In networking, what does the term 'latency' refer to?

Accepted Answer

The time taken for data to travel from its source to its destination

Answer

The speed at which data is transmitted

Answer

The maximum amount of data that can be transferred

Answer

The number of devices connected to a network

Question 10

What is the primary function of a subnet mask in an IP address?

Accepted Answer

To identify the network portion of an IP address and subnet it belongs to

Answer

To determine the number of hosts that can be accommodated on a network

Answer

To prevent unauthorized access to a network

Answer

To enhance data transmission speed

Question 11

What is the main purpose of the Domain Name System (DNS)?

Accepted Answer

To translate human-readable domain names into numerical IP addresses

Answer

To provide email services

Answer

To protect against cyber threats

Answer

To manage network traffic

Question 12

What is the main purpose of a router in a network?

Accepted Answer

To connect different networks

Answer

To provide internet access

Answer

To store data

Answer

To process data

Question 13

Which layer in the TCP/IP model is responsible for ensuring reliable data delivery?

Accepted Answer

Transport

Answer

Network

Answer

Application

Answer

Data Link

Question 14

What is the primary function of a firewall?

Accepted Answer

To prevent unauthorized access to a network

Answer

To encrypt data

Answer

To compress data

Answer

To route traffic

Question 15

Which of the following tasks is NOT an application of the Internet?

Accepted Answer

Writing a letter

Answer

Online banking

Answer

Social media

Answer

Downloading music

Question 16

What is the purpose of a domain name?

Accepted Answer

To translate IP addresses into human-readable names

Answer

To make website addresses easier to remember

Answer

To store website data

Answer

To secure websites

Question 17

What is the primary function of a protocol in a computer network?

Accepted Answer

To define the rules for communication between devices

Answer

To determine the format of transmitted data

Answer

To ensure the security of data

Answer

To manage the flow of data traffic

Question 18

The World Wide Web (WWW) can be described as:

Accepted Answer

A collection of interconnected web pages accessible via the Internet

Answer

A programming language specifically designed for creating websites

Answer

A type of network protocol used for data transmission

Answer

A software application used to browse the Internet

Question 19

What is the primary responsibility of a router in a network?

Accepted Answer

Connecting different network segments

Answer

Assigning IP addresses to devices

Answer

Filtering incoming and outgoing data

Answer

Detecting and resolving network issues

Question 20

What is the main purpose of a domain name system (DNS)?

Accepted Answer

Translating domain names into corresponding IP addresses

Answer

Providing security protection for websites

Answer

Managing email addresses and routing

Answer

Storing and retrieving user data

Question 21

What is the purpose of a demilitarized zone (DMZ) in a network security architecture?

Accepted Answer

Isolating critical network resources from external threats

Answer

Providing a testing environment for new software

Answer

Storing backup data securely

Answer

Connecting different network segments together

Question 22

Which of the following is not a recognized network topology?

Accepted Answer

Pyramid Topology

Answer

Bus Topology

Answer

Star Topology

Answer

Ring Topology

Question 23

Which protocol is specifically used to establish a secure connection between a client and a server over the internet?

Accepted Answer

HTTPS

Answer

HTTP

Answer

FTP

Answer

SMTP

Question 24

What is the main function of a router within a network?

Accepted Answer

Forwarding data packets between different networks

Answer

Connecting devices on a local network

Answer

Providing internet access to devices

Answer

Protecting networks from malicious software

Question 25

Which application is primarily used for sending and receiving electronic mail (email)?

Accepted Answer

Email Client

Answer

Web Browser

Answer

File Manager

Answer

Media Player

Question 26

What is the primary purpose of the Domain Name System (DNS)?

Accepted Answer

Translating domain names into corresponding IP addresses

Answer

Providing email services to users

Answer

Protecting websites from malicious attacks

Answer

Storing and managing user data

Question 27

Which of the following file extensions typically indicates a compressed file?

Accepted Answer

.zip

Answer

.txt

Answer

.jpg

Answer

.exe

Question 28

What is a key advantage of using cloud computing services?

Accepted Answer

Reduced hardware costs and maintenance

Answer

Enhanced data security and protection

Answer

Limited storage capacity and scalability

Answer

Slower processing speeds and performance

Question 29

What is a crucial ethical responsibility of network engineers?

Accepted Answer

Ensuring the privacy and confidentiality of user data

Answer

Promoting internet censorship and surveillance

Answer

Developing software that exploits system vulnerabilities

Answer

Ignoring potential security risks and threats

Question 30

What is the primary use of the World Wide Web (WWW)?

Accepted Answer

To connect users to websites and resources

Answer

To provide a platform for online gaming

Answer

To facilitate file sharing

Answer

To send and receive emails

Question 31

Which of the following is NOT a primary application of the Internet?

Accepted Answer

Printing documents

Answer

E-commerce

Answer

Social networking

Answer

Online banking

Question 32

Which type of network is typically limited to a small geographic area, such as a home or office?

Accepted Answer

LAN

Answer

WAN

Answer

MAN

Answer

Internet

Question 33

What is the main purpose of a Media Access Control (MAC) address?

Accepted Answer

To identify a specific device on a network

Answer

To store user data

Answer

To connect to the Internet

Answer

To protect against viruses

Question 34

Which technology is used to transmit data over long distances using pulses of light?

Accepted Answer

Fiber optic cable

Answer

Coaxial cable

Answer

Twisted pair cable

Answer

Wireless communication

Question 35

Which network topology consists of all devices connected to a central hub?

Accepted Answer

Star

Answer

Bus

Answer

Ring

Answer

Mesh

Question 36

Which protocol ensures reliable communication across a network?

Accepted Answer

TCP

Answer

IP

Answer

UDP

Answer

HTTP

Question 37

Which security measure involves encrypting data during network transmission?

Accepted Answer

Encryption

Answer

Firewall

Answer

Antivirus

Answer

Authentication

Question 38

What is the primary use of the World Wide Web (WWW)?

Accepted Answer

Sharing information

Answer

Sending email

Answer

Playing games

Answer

Accessing social media

Question 39

Which feature is NOT typically found in a network operating system (NOS)?

Accepted Answer

Graphical user interface

Answer

Centralized management

Answer

Security controls

Answer

File sharing

Question 40

What is the primary function of a domain name system (DNS)?

Accepted Answer

Mapping domain names to IP addresses

Answer

Providing network security

Answer

Storing website content

Answer

Routing email messages

Question 41

Which type of network is designed for connecting devices within a limited geographical area?

Accepted Answer

LAN

Answer

WAN

Answer

MAN

Answer

VPN

Question 42

Which protocol is used to send email over the Internet?

Accepted Answer

SMTP

Answer

HTTP

Answer

FTP

Answer

SSH

Question 43

Which of the following is an advantage of using a firewall?

Accepted Answer

Preventing unauthorized access

Answer

Detecting and removing viruses

Answer

Encrypting data

Answer

Backing up files

Question 44

In which network topology are all nodes connected directly to a central hub?

Accepted Answer

Star topology

Answer

Bus topology

Answer

Ring topology

Answer

Mesh topology

Question 45

Which network protocol is responsible for routing data packets across a network?

Accepted Answer

IP

Answer

TCP

Answer

HTTP

Answer

FTP

Question 46

Which application of the Internet enables users to access and navigate information using hyperlinks?

Accepted Answer

World Wide Web

Answer

Electronic mail

Answer

File transfer

Answer

Instant messaging

Question 47

Which network device connects computers within a local area network (LAN)?

Accepted Answer

Switch

Answer

Modem

Answer

Router

Answer

Repeater

Question 48

Which wireless network standard operates in the 2.4 GHz frequency band with a range of up to 100 meters?

Accepted Answer

Wi-Fi 4

Answer

Wi-Fi 5

Answer

Wi-Fi 6

Answer

Wi-Fi 6E

Question 49

What is the primary function of a network operating system (NOS)?

Accepted Answer

To manage and control network resources

Answer

To provide a user interface for accessing the network

Answer

To protect the network from unauthorized access

Answer

To optimize network performance

Question 50

Which of the following is not a valid network topology?

Accepted Answer

Semaphore

Answer

Bus

Answer

Star

Answer

Ring

Question 51

Which protocol is primarily responsible for routing data packets across the Internet?

Accepted Answer

IPv4

Answer

HTTP

Answer

TCP

Answer

SMTP

Question 52

What is the main function of a firewall in a network?

Accepted Answer

To block unauthorized access to a network

Answer

To translate IP addresses

Answer

To route data packets

Answer

To detect and remove viruses

Question 53

What is the primary purpose of a URL?

Accepted Answer

To identify a specific resource on the Internet

Answer

To send email messages

Answer

To translate domain names

Answer

To search for information on the Internet

Question 54

What is the primary difference between IPv4 and IPv6?

Accepted Answer

Address length

Answer

Protocol structure

Answer

Security features

Answer

Routing algorithms

Question 55

What is the primary purpose of a protocol in computer networks?

Accepted Answer

To define rules for communication

Answer

To provide security for network data

Answer

To connect different types of hardware

Answer

To store network configuration settings

Question 56

What is the purpose of an IP address on a computer?

Accepted Answer

To uniquely identify a device on a network

Answer

To represent a website address

Answer

To provide a password for network access

Answer

To transfer data between computers

Question 57

What is the main function of a router in a computer network?

Accepted Answer

To connect different network segments

Answer

To provide wireless access to devices

Answer

To store network configuration information

Answer

To detect and prevent network attacks

Question 58

What is the World Wide Web (WWW)?

Accepted Answer

A system of linked hypertext documents accessible via the Internet

Answer

A collection of websites owned by a particular organization

Answer

A search engine used to find information on the Internet

Answer

A social media platform

Question 59

From the TCP/IP model, which layer is absent?

Accepted Answer

Session

Answer

Network

Answer

Transport

Answer

Application

Question 60

What's the main purpose of a Domain Name System (DNS)?

Accepted Answer

Translate domain names into IP addresses

Answer

Provide email services

Answer

Host websites

Answer

Manage network traffic

Question 61

Among the following, which is NOT a common application of the Internet?

Accepted Answer

Time travel

Answer

Social media

Answer

Online shopping

Answer

Data storage

Question 62

In a network, what is a router primarily responsible for?

Accepted Answer

Forwarding data packets

Answer

Connecting devices

Answer

Providing security

Answer

Storing data

Question 63

How do client-server and peer-to-peer networks differ fundamentally?

Accepted Answer

Client-server features a central server, unlike peer-to-peer.

Answer

Peer-to-peer networks excel in security compared to client-server.

Answer

Client-server networks surpass peer-to-peer in speed.

Answer

None of the mentioned options highlight the difference.

Question 64

When designing a secure network, the primary factors to consider are:

Accepted Answer

Confidentiality, integrity, availability

Answer

Cost, performance, scalability

Answer

Ease of use, flexibility, reliability

Answer

None of the mentioned options are relevant.