SEC: 1.3.1 INTERNET SERVICES

The Global Grid

Mission: Master the concepts of Hosting, the Cloud, and the Web Server-Client relationship for your J277 GCSE.

Web Ecosystem

Servers & Clients

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Web Clients

The device you use to access the web (laptop, phone). It sends requests to a web server and displays the results.

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Web Servers

High-powered computers that "serve" files (web pages). They listen for requests and send back the response.

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Hosting

Web hosting is the service of storing a website's files on a server that is always connected to the internet. This allows other computers to access the site 24/7.

The Cloud

Remote Services

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What is 'The Cloud'?

The Cloud refers to remote services accessed over the internet. This includes remote storage (Google Drive), software (Office 365), and processing power.

Benefits (Why use it?)
  • Access data from any location / device.
  • Host manages backups & security.
  • Scalable: Easy to add more storage space.
Drawbacks (The Risks)
  • Useless without an internet connection.
  • Relying on a 3rd party for security.
  • Potential subscription costs.

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Examiner's Eye: Internet Traps

The "Easier to Hack" Trap: Never say the Cloud is "easier to hack". Cloud hosts usually have better security than you! Instead, say you are reliant on a third party to manage that security.

Hosting vs Internet: Remember, the Internet is the network infrastructure; Hosting is the service of using someone's server to store your files.

Client/Server Role: The Client initiates the request; the Server waits and responds. You must use the words Request and Response.

Knowledge Check

Question 1 of 5