Cambridge AS & A Level Computer Science
2.1Networks including the internet
Networks including the internet in Cambridge AS & A Level Computer Science: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic151 practice questions7 lessons
Learning objectives
What the syllabus expects you to be able to do.
- 2.1.1Describe the purpose of networking devices and the characteristics of a LAN and a WAN.
- 2.1.2Compare client-server and peer-to-peer models and thin-client and thick-client computing.
- 2.1.3Compare bus, star, mesh and hybrid topologies and wired and wireless networks, and describe the transmission media.
- 2.1.4Describe the hardware that supports a LAN and the internet, and the role of a router.
- 2.1.5Explain how Ethernet detects and avoids collisions (CSMA/CD).
- 2.1.6Explain bit streaming, and the differences between the internet and the World Wide Web.
- 2.1.7Explain IP addresses (IPv4 and IPv6, subnetting, public and private, static and dynamic) and how a URL and the DNS locate a resource.
- 2.1.8Describe cloud computing with its benefits and drawbacks.
Lessons
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Cloud computing: service models and types
45 min
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IP addresses: IPv4, IPv6, subnets, public and private, static and dynamic
55 min
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LAN hardware, routers and Ethernet
45 min
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LANs, WANs, client-server and peer-to-peer networks
45 min
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Network topologies and transmission media
45 min
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The internet, the World Wide Web and streaming
45 min
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URLs and the Domain Name System
45 min
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Sample question
A sample question on this topic. Answer it, check it, then read the worked answer.
Turn Networks including the internet into a strength.
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