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GCSE Computer Science (J277)
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Networks and topologies
OCR J277 Paper 1 · 1.3.1
Networks and topologies
LANs and WANs, DNS, network hardware, the cloud, and network topologies
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a.
Types of network: LAN (Local Area Network), WAN (Wide Area Network)
b.
Factors that affect the performance of networks
c.
The different roles of computers in a client-server and a peer-to peer network
d.
The hardware needed to connect stand-alone computers into a Local Area Network: Wireless access points, Routers, Switches, NIC (Network Interface Controller/Card), Transmission media
e.
The Internet as a worldwide collection of computer networks: DNS (Domain Name Server), Hosting, The Cloud, Web servers and clients
e.i.
The Internet: DNS (Domain Name Server)
e.ii.
The Internet: Hosting
e.iii.
The Internet: The cloud
e.iv.
The Internet: Web servers and clients
f.
Star and Mesh network topologies