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Network+ Academy · Lesson

Web and File Transfer Protocols

Recognize HTTP, HTTPS, and FTP and the ports they use.

Protocols Built on Ports

The web and file transfer rely on application-layer protocols that ride on TCP using well-known ports. Learning these protocols and their ports is essential exam material.

This lesson covers HTTP, HTTPS, and the file transfer family: FTP, plus secure alternatives.

HTTP on Port 80

HTTP (Hypertext Transfer Protocol) is the language of the web, carrying web pages between browsers and servers. It uses TCP port 80.

HTTP sends data in plain text, so anyone intercepting the traffic could read it. That weakness led to the secure version, HTTPS.

All lessons in this course

  1. TCP vs UDP at a Glance
  2. What Port Numbers Are For
  3. Web and File Transfer Protocols
  4. Remote Access and Mail Protocols
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