Network topologies
I can describe and compare different network topologies, including their advantages and disadvantages.
Network topologies
I can describe and compare different network topologies, including their advantages and disadvantages.
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Lesson details
Key learning points
- A star topology connects all devices to a central hub or switch.
- A bus topology connects all devices to a single cable.
- A mesh topology connects each device to several others.
- Each topology has benefits and drawbacks that affect network performance, cost and reliability.
Keywords
Star - the arrangement (usually physical) of a network where devices are connected through a central point
Bus - a network where all devices are connected to a single shared communication line that transmits data to every device on the network
Mesh - a network where each device is connected to one or more others, allowing multiple data paths
Common misconception
All network topologies work the same way and have the same benefits.
Different topologies connect devices in different ways. For example, star networks use a central hub, while mesh networks connect devices directly. Each has unique strengths and weaknesses depending on the situation.
To help you plan your year 11 computer science lesson on: Network topologies, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 11 computer science lesson on: Network topologies, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
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Prior knowledge starter quiz
5 Questions
Q1.What is the name of the network device that sends data to all devices connected to it, rather than just the intended recipient?
Q2.What is the name of the network device that sends data only to the specific device it is intended for, rather than to all devices on the network?
Q3.What does the acronym “MAC” stand for in MAC address?
Q4.Arrange these actions for identifying a device on a local network.
Q5.Match each keyword to its purpose.
a device that manages data between networks
a device that sends data only to the correct device
a unique identifier for network interfaces
a group of connected devices that can share resources
Assessment exit quiz
6 Questions
Q1.In a star topology, how are devices connected?
Q2.What is the main feature of a bus topology?
Q3.Which topology is often used in large, reliable networks like the internet?
Q4.What is a disadvantage of a mesh topology?
Q5.Put these steps in order for data travelling in a star topology.
Q6.Match each keyword to its meaning.
the arrangement of devices in a network
a network where devices connect through a central point
a network with a single cable for all devices
a network where each device connects to several others