Networks
Unit Objectives
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Understand about domain names, LANs and WANs, why transmissions are encrypted. | ![]() |
Explain bandwidth, buffering and why they are used. Advantages and disadvantages of network topologies and the uses of peer to peer and client-server networks. | ![]() |
Design a network layout and describe the concept of cloud computing. |

Domain Name Search
Who Is Information

Search for domain names.
Domain Search

How fast is your connection?
Speed Test

A map of the underwater cables.
Cable Map

A great video on how the internet works.
How does the internet work

How DNS Works
DNS
Assessment is via an end of unit test. Covering the following areas:
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Network revision topics
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What is the internet and who owns it?
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What is a URL
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IP addresses
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Domain name extensions
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Who data is sent across the internet.
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Packet Switching networks
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Peer to Peer Networks
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What are domain names
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Transfer speeds
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Wireless networks – advantages and disadvantages
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Buffering
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LANs (Local Area Network)
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Bus and Star networks
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Ring networks
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Cloud computing
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Ciphers – encryption and decryption
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HTTP vs HTTPS