Bus & Star Topologies
Unit 8 Summary - Part 2
BUS Topology
What Are Advantages of Bus Topology, brainstudy.info, September 2021
STAR Topology
Mrs.KCaroe, Year 13 ICT, quizlet.com, September 2021
Bus Topology
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has a single main cable that transmit all the signals, the main cable is called the bus. Devices are connected to the bus by short connecting wire. At each end of the wire is a terminator.
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advantage:
simple & cheap to set up.
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disadvantage:
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if the network is large and busy, the cable is overloaded by signals, so the signals become slow and interfere each other so the signals are unreliable.
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if the main cable (bus) fails, the whole network fails.
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it's not secure as every user shares the same transmission medium.
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STAR Topology
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provides a different connection for every device.
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advantage:
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each computer has its own cable so the network doesn't become overloaded.
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it's more secure than bus topology.
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disadvantage:
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if it's not wireless, it uses more cables than bus topology, so it becomes more expensive.
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it requires a switch as the centre, so you need that's extra money to spend.
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if the switch fails, the whole network of that switch fails.
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Oxford AQA IGCSE 2019
03.1.
A diagram of part of a school’s computer network is shown in Figure 2 box.
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Figure 2
Identify the physical network topology shown in Figure 2. [1 mark]
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Answer:
Star
Oxford AQA IGCSE Mock Paper
02.1.
Draw a diagram that shows a bus topology network in the space below.
Your diagram should include four computers that are connected to the network. [1 mark]
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02.2.
Describe two differences between a bus topology and a star topology network. [2 marks]
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