Keywords Topology Mesh Network Star Network WiFi Encryption Ethernet Mesh and Star Networks Objectives BEGINNER I dentify a Star and Mesh Topology ADVANCED Compare Advantages and Disadvantages of WiFi and Ethernet ID: 675893
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Slide1
Networks
Topologies, Protocols and Layers
Keywords
Topology, Mesh Network, Star Network, Wi-Fi, Encryption, EthernetSlide2
Mesh and Star Networks
Objectives
BEGINNER:
I
dentify
a Star and Mesh Topology
ADVANCED:
Compare
Advantages and Disadvantages of Wi-Fi and EthernetEXPERT: Understand and explain what encryption is and why it is required
Task 1
1. Draw a mesh network.
Task 2
1. Draw a star network.
2. Label the diagram.
2. Label the diagram.
3. Write down the features of a mesh network.
3. Write down the features of a star network. Slide3
Mesh Network
Objectives
BEGINNER:
I
dentify
a Star and Mesh Topology
ADVANCED:
Compare
Advantages and Disadvantages of Wi-Fi and EthernetEXPERT: Understand and explain what encryption is and why it is requiredSlide4
Star Network
Objectives
BEGINNER:
I
dentify
a Star and Mesh Topology
ADVANCED:
Compare
Advantages and Disadvantages of Wi-Fi and EthernetEXPERT: Understand and explain what encryption is and why it is requiredSlide5
Mesh and Star Networks
A Mesh Network is ….
Where some or all of the workstations or other devices are connected directly to each of other. Most are usually connected to the node that they exchange the most data with.
A Star Network …..
In a star network, each device is connected by an individual cable directly to the server. Star networks are usually the layout of choice in schools and offices because they tend to be the most reliable of the topologies.
Objectives
BEGINNER:
I
dentify
a Star and Mesh Topology
ADVANCED:
Compare Advantages and Disadvantages of Wi-Fi and EthernetEXPERT: Understand and explain what encryption is and why it is requiredSlide6
Ethernet and
Wifi
Objectives
BEGINNER:
I
dentify
a Star and Mesh Topology
ADVANCED:
Compare Advantages and Disadvantages of Wi-Fi and EthernetEXPERT: Understand and explain what encryption is and why it is required
TASK
Write a list of benefits for Ethernet and a list of Wi-Fi.Slide7
Wi-Fi (Wireless Frequency)
Radio
waves are used to transmit data packets without the need for wires.
This
method is slower and more vulnerable to attack but it removes the need for cabling and
networks. This
means that it can be set up in remote locations such as in vehicles, in parks or on planes etc.
Objectives
BEGINNER:
Identify a Star and Mesh Topology
ADVANCED:Compare Advantages and Disadvantages of Wi-Fi and EthernetEXPERT: Understand and explain what encryption is and why it is requiredSlide8
Encryption
Encryption is a method of scrambling data with a key code which makes no
sense. On
an open or public
WiFi
network anyone can join and sniff out packets of data from other users.
Therefore encryption is used. If intercepted the data will have no
meaning. In
order to read the data the user is required to decrypt the data using the key.
When you are using a secure site for example your bank, or purchasing on Amazon, encryption applied to keep your details
safe. The encryption method used is called 'SSL' (Secure Socket Layer). A tiny padlock appears in your browser window, usally on the left hand side of the address bar and the website address starts with HTTPS://
ObjectivesBEGINNER:
Identify a Star and Mesh TopologyADVANCED:Compare Advantages and Disadvantages of Wi-Fi and EthernetEXPERT: Understand and explain what encryption is and why it is requiredSlide9
Example
Objectives
BEGINNER:
I
dentify
a Star and Mesh Topology
ADVANCED:
Compare
Advantages and Disadvantages of Wi-Fi and EthernetEXPERT: Understand and explain what encryption is and why it is required
Twitter users a HTTPS when you log in, why
?
Why
does the data need to be encrypted?What could happen if it was not encrypted?
What could happen if it was not encrypted?