Year 11 - Computing
Network topologies
Network fundamentals
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
In this unit pupils will be develop their understanding of computer networks by looking at network models and the tasks performed by network hardware. They will discover the differences between wired and wireless transmission media and the factors that can affect the performance of a network.
Lesson Summary
You will learn to describe and compare different network topologies, including their advantages and disadvantages.
Key Notes
- 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.
Vocabulary To Learn
- 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 Mistakes To Avoid
- All network topologies work the same way and have the same benefits.
3 Quick Questions (With Answers)
1. Describe the system or process from this lesson in clear steps.
A star topology connects all devices to a central hub or switch. A bus topology connects all devices to a single cable.
2. Define this computing term and give one practical example. 'star'
the arrangement (usually physical) of a network where devices are connected through a central point. Add one real device or system example to prove understanding.
3. Correct this common computing misconception.
Mistake: All network topologies work the same way and have the same benefits. Correction: 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.
More Lessons In This Unit
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