Networks

Networking
Year 12 
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Slide 1: Tekstslide
ComputingFurther Education (Key Stage 5)

In deze les zitten 35 slides, met interactieve quizzen en tekstslides.

time-iconLesduur is: 100 min

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Networking
Year 12 

Slide 1 - Tekstslide

KO: To be-able to identify the different Networks and the concepts associated with Networks.
All 
To know what a 'Network' is and the different types of Networks.
To be-able to describe a Network.
To be-able to identify the different components within a Network.

Most 
To  explain the different Networks that are available.
To be-able to explain the difference between the Networks
To be-able to identify the different network topologies.

Some 
To explain the different topologies which are associated with Networks.
To be-able to explain the different components within a Network.

Slide 2 - Tekstslide

What is a Network?

Slide 3 - Open vraag

Definition of a Network
A network  refers to a group of computers and other devices (such as printers or servers) that are connected together so that they can communicate and share resources, such as files or Internet access.

Slide 4 - Tekstslide

So, where might we find a 'Network'?

Slide 5 - Tekstslide

Why do we need a 'Network'?

Slide 6 - Open vraag

Research Task
You are going to split up into pairs to research the below components.

NIC (Network Interface Card), Switch, Router, WAP's (Wireless Access Points) , Copper Based Cables, Fibre Optic Cables, Wi-Fi.

What is the component?
What is its function in a Network?



Slide 7 - Tekstslide

What is a LAN?
A LAN, or Local Area Network, is a computer network that covers a small geographic area, typically within a single building or campus. It is designed to allow computers, printers, and other devices to communicate and share resources with each other. LAN is always a privately owned network environment.





Slide 8 - Tekstslide

LAN Diagram

Slide 9 - Tekstslide

Where is a LAN used?
LANs are commonly used in homes, schools, and businesses to enable communication between devices, share files and resources such as printers and scanners, and access the internet. They can be connected using wired or wireless technologies, such as Ethernet cables or Wi-Fi.

Slide 10 - Tekstslide

How does a LAN work?
In a LAN, all devices are connected to a central hub or switch, which allows them to communicate with each other. This can be set up using a variety of protocols, such as TCP/IP, and can be secured using encryption and authentication methods to ensure that only authorised users can access the network.

Slide 11 - Tekstslide

What is a WAN?
A WAN, or Wide Area Network, is a computer network that spans a large geographic area, such as a city, country, or even across multiple continents. It is designed to connect multiple local area networks (LANs) and allow devices in different locations to communicate with each other. WAN uses leased lines, which means that the network isn't privately owned.

Slide 12 - Tekstslide

WAN Diagram

Slide 13 - Tekstslide

Where is a WAN used?
WANs are typically used by large organisations and businesses with multiple locations or branch offices, as well as by internet service providers (ISPs) to provide internet connectivity to their customers. They use a variety of technologies to connect devices, including leased lines, satellite links, and fibre optic cables.

Slide 14 - Tekstslide

How does a WAN work?
WANs can be configured in a variety of ways to suit the specific needs of the network, such as using virtual private networks (VPNs) to provide secure remote access to the network, or using cloud-based services to provide network resources and services to users in different locations.

Slide 15 - Tekstslide

What is a WAN?

Slide 16 - Open vraag

What is a LAN?

Slide 17 - Open vraag

Client Server 
In a client-server architecture, the server is a centralised system that provides services to multiple clients. The clients communicate with the server to access the resources and services provided by it. This architecture is suitable for applications that require centralised management and control, as well as those that require high scalability and reliability.

Slide 18 - Tekstslide

Client Server (Diagram)

Slide 19 - Tekstslide

Peer-to-peer (P2P)
Peer-to-peer (P2P) networking is a computer networking model where two or more computers are connected together directly over a network, without the need for a central server. In a P2P network, each computer can act as both a client and a server, allowing users to share files, resources, and information with each other directly.

The nodes in the network are equal and can act as both clients and servers. Each node can directly communicate with other nodes in the network to share resources and services. This architecture is suitable for applications that require decentralised management and control, as well as those that require high flexibility and resilience.

Slide 20 - Tekstslide

Peer-to-peer (Diagram)

Slide 21 - Tekstslide

What is the main difference between client-server and peer-to-peer networks?
A
In client-server, a central server manages resources.
B
Peer-to-peer has a centralized architecture.
C
In peer-to-peer, a central server manages resources.
D
Client-server has a centralized architecture.

Slide 22 - Quizvraag

What is a Topology?

Slide 23 - Open vraag

Network Topologies
In networking, topology refers to the physical or logical arrangement of devices in a network. It describes the way in which devices, such as computers, servers, routers, switches, and other network components, are connected to each other and how they communicate and exchange data.

Slide 24 - Tekstslide

What are the different Topologies?

Slide 25 - Tekstslide

Star Topology

Slide 26 - Tekstslide

What is a 'Star' Topology?
In a star topology, devices are connected to a central hub or switch, which acts as a central point of communication. Data is transmitted between devices via the hub or switch, and if one device fails, the rest of the network can still function.

Slide 27 - Tekstslide

Mesh Topology

Slide 28 - Tekstslide

What is a 'Mesh' Topology?
In a mesh topology, devices are connected to each other in a complex, interconnected network. Data can be transmitted between devices in multiple paths, making the network highly resilient and fault-tolerant.

Slide 29 - Tekstslide

What is a Network Topology?

Slide 30 - Open vraag

Privately owned network environment
Small geographical area
Large geographical area
WAN
LAN
Leased Lines 
Used at homes
Used in businesses with many sites.
Uses VPN's for secure connectivity.

Slide 31 - Sleepvraag

Can devices communicate directly with each other in a 'Star' topology?
A
No, all communication goes through the central hub or switch
B
Yes, devices can communicate directly with each other
C
Yes, but only if they are connected to the same central hub or switch
D
It depends on the type of devices being used

Slide 32 - Quizvraag

What is a Peer-to-Peer network?
A
A network where all computers share resources.
B
A network where only one computer shares resources.
C
A network where computers don't share resources.
D
A network where resources are only shared with friends.

Slide 33 - Quizvraag

What is the advantage of a Mesh Topology?
A
Easy to set up
B
Requires less cabling
C
No single point of failure
D
Highly reliable and fault-tolerant

Slide 34 - Quizvraag

What is the responsibility of the server in the client server architecture?
A
To provide services to the client.
B
To manage resources and services.
C
To connect multiple devices.
D
To request services from the client.

Slide 35 - Quizvraag