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WorksheetsComputer Networks, Connections and Protocols - Revision Quiz
Total questions: 98
Worksheet time: 52mins
What type of network typically covers a small geographical area like a single building?
WAN
LAN
SAN
GAN
Which characteristic describes a Wide Area Network (WAN)?
It is typically owned by a single organisation.
It uses infrastructure leased from telecommunication companies.
It is limited to a single physical site.
It offers extremely high bandwidth locally.
Which factor directly affects the amount of data that can be transferred over a network in a given time?
Error rate
Bandwidth
Latency
Number of users
What is the primary role of a server in a client-server network?
To equalise data traffic
To provide services and manage resources
To directly connect to all clients
To function without any clients
In a peer-to-peer network, what is the role of each computer?
To be a dedicated server
To request services only
To be equal and serve its own files
To control network security centrally
Which hardware component connects a computer to a wired or wireless network?
Router
Switch
Network Interface Controller (NIC)
Wireless Access Point (WAP)
What is the primary function of a Network Interface Controller (NIC)?
To route data packets between networks
To provide wireless internet access
To allow a device to connect to a network
To manage cloud storage
Which network device primarily directs data traffic between computers within the same Local Area Network (LAN)?
Router
Modem
Switch
Hub
What is the main purpose of a Router in a network?
To manage local printer connections
To connect a Local Area Network (LAN) to a Wide Area Network (WAN)
To amplify wireless signals
To secure individual computers
Which type of transmission media uses glass or plastic fibres to transmit data as light pulses?
Copper cable
Coaxial cable
Fibre optic cable
Ethernet cable
The Internet is best described as a worldwide collection of:
Local Area Networks (LANs)
Specific software applications
Individual servers
Computer networks
What is the function of a Domain Name Server (DNS)?
To store user passwords securely
To convert human-readable URLs into IP addresses
To manage email accounts
To host web pages
What is the concept of 'hosting' in the context of the Internet?
Storing files on a local hard drive
Providing space on a server for websites or data
Restricting internet access for security reasons
Connecting two different networks together
What does 'The Cloud' refer to in computing?
Which is an advantage of using The Cloud for file storage?
Increased physical security of local devices
Reduced dependence on internet connectivity
Automatic data backup and accessibility from anywhere
Complete control over server hardware
What is a disadvantage of using The Cloud for remote software provision?
It requires local software installation
It offers better performance than local software
It relies heavily on internet access
It provides unlimited offline access
What is the primary function of a web server?
To store files for local access
To provide web pages to client browsers
To send emails
To manage network security
What does a client do in a client-server model?
Provides all network services
Requests and uses services from a server
Acts as a central point of failure
Controls the network topology
Which network topology connects all devices to a central switch or hub?
Bus
Ring
Star
Mesh
In a Star topology, if one cable connecting a computer to the central switch fails, what happens?
The entire network goes down
Only the affected computer loses connection
All other computers slow down
Data is automatically rerouted to another path
What is a disadvantage of a Star network topology?
It is very difficult to add new devices
The central switch can be a single point of failure
It requires less cabling than a bus network
It is very expensive to set up
Which network topology offers multiple paths for data, increasing reliability?
Bus
Ring
Star
Mesh
What is an advantage of a Mesh network topology?
It is the cheapest to implement
It is simple to install and manage
If one connection breaks, data can be rerouted
It relies on a single central server
What is a disadvantage of a wired Mesh network topology, especially for large networks?
It is less reliable
It requires extensive cabling and is expensive
It has limited bandwidth
It is prone to single points of failure
Which mode of connection generally offers higher speed and reliability?
Wireless
Bluetooth
Wired
Satellite
What is a drawback of wired connections compared to wireless ones?
Greater susceptibility to interference
Limited mobility for devices
Slower data transfer speeds
Less secure connections
What is a benefit of wireless connections (Wi-Fi) over wired connections?
Higher inherent security
Greater reliability in all environments
Users can move freely within the network area
Lower susceptibility to signal obstruction
What is the main principle of encryption?
To compress data for faster transfer
To scramble data into an unreadable format
To verify the sender's identity
To publicly share private information
What is the purpose of an IP address?
To identify a Network Interface Card (NIC)
To provide a unique numerical label for a device on a network
How is an IPv4 address typically formatted?
As eight groups of hexadecimal digits
As 12-digit hexadecimal number
As four numbers separated by periods
As a single alphanumeric string
Which version of IP addressing was developed to address the shortage of available addresses?
IPv2
IPv4
IPv6
IPX
What is a MAC address?
A logical address assigned by a router
A unique physical address assigned to a network device
A website's location on the Internet
A type of network protocol
Where is a MAC address assigned?
By the Internet Service Provider
By the operating system
To the Network Interface Card (NIC)
By the DNS server
What is the main reason standards are crucial in computing?
To limit manufacturer choice
To prevent hardware from connecting to software
To ensure compatibility and interoperability between different products
To make systems more expensive
What is a communication protocol?
A type of network cable
A set of rules for transferring data
A software application for browsing
A hardware component for connecting devices
Which protocol ensures error-free data transmission and is part of the foundational internet protocol suite?
IP
HTTP
TCP
FTP
Which protocol is responsible for requesting and delivering web pages over the World Wide Web?
FTP
SMTP
HTTP
IMAP
What is the purpose of HTTPS?
To provide unencrypted web communication
To secure data transfer for sensitive web content
To transfer files between computers
To manage email accounts
Which protocol is specifically used for transferring files between computers?
HTTP
SMTP
FTP
POP
What is the primary purpose of SMTP (Simple Mail Transfer Protocol)?
To retrieve emails from a server
To send emails between mail servers
To manage email folders
To encrypt email content
Which email protocol removes the original email from the server once it is retrieved by a mail client?
IMAP
SMTP
POP
HTTP
Which email protocol allows mail clients to retrieve emails while leaving a copy on the server, enabling synchronisation across multiple devices?
POP3
SMTP
IMAP
FTP
What is the overall benefit of using layers in network protocols?
It makes networking more complex
It allows for independent development of protocols within different layers
It increases latency
It requires all hardware to be from the same manufacturer
Which layer conceptually deals with the physical connection between devices in a
Physical Layer
Data Link Layer
Network Layer
Transport Layer
If a network experiences high latency, what does this indicate?
Very fast data transfer
A significant delay between sending and receiving data
A high number of connected users
Strong network encryption
Which network device combines the functions of a switch, router, and wireless access point in a home setup?
Modem
Repeater
Home gateway
NIC
What is an example of cloud service provision?
Storing data on your computer's hard drive
Using an online word processor accessed via a web browser
Printing a document on a local printer
Connecting to a local file server
What is a unique identifier assigned to a wireless network, often broadcast to allow devices to find it?
IP address
MAC address
SSID
URL
What is a disadvantage of a client-server network that is not typically present in a peer-to-peer network?
Easier centralising backups
More difficult to maintain an organised file store
Reliance on a single, powerful server
High cost of individual computer setup
Which cable type is commonly referred to as UTP, Cat5, Cat6, or Ethernet cable?
Coaxial cable
Fibre optic cable
Twisted pair cable
USB cable
The role of a web client is:
To request and display web content from a server
To host websites and serve web pages
To manage network security
To store and process large databases
What is the main function of a web server?
To host web pages
To process web server requests
To store website databases
To request web pages from a web server
What is the main characteristic of a LAN in terms of ownership?
Infrastructure is always leased
Hardware is typically owned by the organisation
It uses public internet infrastructure
It is owned by multiple global companies
How does increasing the number of devices connected affect network performance?
It generally improves performance
It has no effect
It can slow down performance
It only affects wireless networks
What is a key difference in responsibility between client-server and peer-to-peer models regarding backups?
Client-server decentralises backups
Peer-to-peer centralises backups
In peer-to-peer, each peer manages its own backups
In client-server, clients manage their own backups
What is the approximate number of addresses available with IPv4?
Billions
Trillions
Quintillions
Hundreds of millions
Why was IPv6 developed?
To reduce network security risks
To provide a larger number of unique IP addresses
To replace MAC addresses
To speed up internet connections
Which protocol is often considered the foundation of the Internet, comprising two main parts?
HTTP/HTTPS
POP/IMAP
TCP/IP
FTP/SMTP
What does the 'S' in HTTPS stand for?
(a)
Which is an advantage of Wi-Fi over wired connections regarding setup?
It requires extensive cabling
It is generally more complex to set up
It is often easier and less expensive to set up
It offers guaranteed faster speeds
What is a short-range wireless standard ideal for connecting personal devices with low power consumption?
Ethernet
Wi-Fi
Bluetooth
Fibre Optic
What is the effect of a high error rate on network performance?
It increases bandwidth
It requires data to be resent
It speeds up network communication
It reduces latency
What is 'latency' in network terms?
The maximum data throughput
The amount of data transferred per second
The delay between sending and receiving data
The frequency of data collisions
Which network device learns the location of devices by reading addresses on data packets and directs traffic accordingly within a LAN?
Router
Wireless Access Point
Switch
Modem
What is the purpose of an IP address having two parts?
To identify the user and the password
To identify the network and the specific host device
To identify the sender and the receiver
To identify the hardware and software versions
What is an advantage of centralised security in a client-server network?
Each client manages its own security
Security policies are inconsistent
It simplifies management and deployment of security policies
It makes the network less secure overall
Which type of network device often combines the functions of a switch, router, and wireless access point in a home setup?
NIC
Hub
Home router
Server
What kind of addresses are used by routers to direct traffic between networks?
MAC addresses
Port numbers
IP addresses
SSID
How do standards benefit manufacturers in the computing industry?
They limit product innovation
They enforce proprietary technologies
They allow manufacturers to create compatible products and services
They increase competition by creating niche markets
Which email protocol is used for sending emails from a mail client to an email server?
POP
IMAP
SMTP
FTP
What is the benefit of layers in network protocols regarding troubleshooting?
It makes troubleshooting more complex
It localises problems to specific layers
It requires knowledge of all layers to fix any issue
It prevents any form of error detection
What is a characteristic of a WAN in terms of geographical area?
A WAN covers a large geographical area, often a country or continent.
A WAN is limited to a single building.
A WAN only connects devices within a room.
A WAN is restricted to a local neighborhood.
Which factor primarily relates to the number of devices or users actively sending or receiving data on a network?
Bandwidth
Transmission media
Number of devices connected
Error rate
What is a disadvantage of a peer-to-peer network related to security?
It typically has centralised security
It is generally more secure than client-server
It can be less secure and users manage their own backups
It requires strong encryption by default
What is the core concept of the Internet as a network?
A single, centralised database
A series of isolated computers
A network of computer networks
A global wireless signal
Which network hardware component acts as the physical connection for a wired device to a network?
Wireless Access Point
Router
NIC
Hub
What is a primary difference in how web servers and clients interact?
Clients provide services to servers
Servers request data from clients
Clients request services from servers
Servers and clients are always equal
What is the purpose of Transmission Control Protocol (TCP) in the TCP/IP suite?
Routing packets across networks
Ensuring error-free data transmission between two routers
Managing email servers
Encrypting web traffic
What is a benefit of having automatic data backup when using The Cloud?
You need to manually back up your data
Data is not securely stored
Data is automatically backed up and can be restored if lost
You lose control over your data
Which type of IP address is 128 bits in size?
IPv4
IPv6
MAC
DNS
What is a characteristic of a MAC address format?
It is a logical address that can change
It is a unique hardware address
It is used for routing across the Internet
It is usually eight groups of hexadecimal digits
What does a standard provide for areas of computing?
A competitive disadvantage
Optional guidelines
Rules for creating compatible hardware and software
A proprietary system
How do different types of protocols aid networking?
They complicate data transfer
They ensure all devices use the same language for specific purposes
They limit network speeds
They only work with specific manufacturers
If a business needs high reliability for their network, which topology would be a strong candidate, despite its cost?
Bus
Ring
Star
Mesh
What is the main benefit of using layers in protocol design?
Increased system complexity
Reduced interoperability
Simplified development and maintenance of network protocols
Elimination of all network errors
Which network component allows wireless devices to connect to a wired network?
Switch
Router
Wireless Access Point
NIC
What is a benefit of wired connections over wireless connections in terms of interference?
More prone to electromagnetic interference
Less prone to signal obstruction
Higher susceptibility to radio interference
More susceptible to signal degradation
What is the purpose of HTTP/HTTPS in the context of the World Wide Web?
Email transfer
File transfer
Web page communication
Remote desktop access
What is the difference between TCP and IP in the TCP/IP protocol stack?
TCP routes packets and IP handles errors
TCP ensures error-free transmission and IP handles errors
They are identical protocols
TCP is for wireless and IP is for wired
Which protocol is specifically designed for sending emails from a client to a server?
POP
IMAP
SMTP
FTP
What is the concept of "Domain Name Server (DNS) is made up of multiple Domain Name Servers" indicating?
A single point of failure
A hierarchical and distributed system
A non-redundant system
A system limited to local networks
What is a primary advantage of a client-server network over a peer-to-peer network?
Lower cost of setup
Easier management of security and backups
No single point of failure
Greater individual user control
What is a key disadvantage of a peer-to-peer network?
Difficulty in centralising backups
Scalability for large organisations
Reliance on a central server
High management costs
Which of the following describes the Internet as a "network of computer networks"?
It is a single, massive computer
It connects many individual LANs and WANs globally
It only connects government computers
It is a proprietary system owned by one company
When might you recommend a wireless connection for a user?
When high-speed, constant connection is critical
When working with extremely sensitive data
When the user needs mobility
When physical security is paramount
What is the principle behind a MAC address being 'assigned to devices'?
It is dynamically allocated each time a device connects
It is permanently embedded in the Network Interface Card (NIC)
It is chosen by the user upon setup
It changes every time the device moves locations
What is a characteristic of a MAC address format?
It is a 32-bit numerical address
It is a 12-digit (48-bit) hexadecimal number
It is a 128-bit alphanumeric string
It is an automatically generated random number
Which is a benefit of using standards for hardware/software interaction across different manufacturers?
It restricts choice for consumers
It creates vendor lock-in
It ensures compatibility and interoperability
It increases development time
