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Knowledge organisers / Wired and wireless networks, protocols and layers

Common protocols: HTTP (Hyper Text Transfer Protocol)

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Knowledge organiser

Wired and wireless networks, protocols and layers

1.3.2e.ii

What you need to know

HTTP (Hypertext Transfer Protocol) is used for transferring web pages between web servers and browsers. It defines how browsers request pages and how servers respond with the content.

Key points

  • Definition:HTTP (Hypertext Transfer Protocol): the protocol used for transferring web pages and other content between web servers and web browsers.
  • HTTP is NOT encrypted — data is sent in plain text, which can be intercepted and read.
  • Used for standard web browsing where security is not critical.
  • Exam Tip:HTTP is INSECURE because data is not encrypted. For secure communication, HTTPS is used instead.