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GCSE Computer Science/Paper 1/Networks and topologies

Web servers and clients

The Internet: Web servers and clients

1.3.1 Networks and topologies

Practise exam questions

Networks and topologies — Note 9 of 10

What you need to know

Web servers store and provide web pages to clients over the Internet. A client (such as a web browser) sends a request to the server, which responds by sending back the requested data. This is an example of the client-server model.

What to know

  • The client-server model: the client sends a REQUEST to the server; the server processes it and sends a RESPONSE.
  • File servers are another example — they allow clients to store and retrieve files centrally.

Key terms

Web Server

A computer that stores web pages and sends them to clients when requested.

Client

A device or program (e.g. a web browser) that sends requests to a server and receives responses.

Exam technique

  • Tip:Always describe the TWO-WAY process: client sends request, server sends response.

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Revise another OCR GCSE topic: Wired and wireless networks, protocols and layers

Networks and topologies

Note 9 of 10

  1. 1LAN (Local Area Network), WAN (Wide Area Network)
  2. 2Factors that affect the performance of networks
  3. 3The different roles of computers in a client-server and a peer-to peer network
  4. 4Wireless access points, Routers, Switches, NIC (Network Interface Controller/Card), Transmission media
  5. 5DNS (Domain Name Server), Hosting, The Cloud, Web servers and clients
  6. 6DNS (Domain Name Server)
  7. 7Hosting
  8. 8The cloud
  9. 9Web servers and clients
  10. 10Star and Mesh network topologies
Topic overview

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