Learn how the Internet Works – HTTP/HTTPS, Mail Delivery (SMTP), LAN, WAN, Network Basics & Firewalls

What you will learn

How the Internet Facilities the movement of Data Packets

The Difference between Local and Wide Area Networks (LAN, WAN)

The Basics of the HTTP and HTTPS Protocols

How DNS Lookups Work

How Email Exchange works using SMTP and IMAP

How Network Ports and Firewalls Work

The difference between Hardware and Software Firewalls

An Overview of the Web Development Process

How to Plan the Development of a Small Website


This course explores how the internet works, including the composition and transmission of data packets over both Local and Wide Area Networks. We take a look at the HTTP and HTTPS protocols as applicable to client and server side communications – including DNS Lookups. This course will also teach students how email exchange works over SMTP and IMAP. The role of Network Ports and Firewalls are also introduced.

The course comes complete with two bonus sections which offer a quick guide for aspiring Web Developers. Here we offer a brief overview of the Web Development Process and Basic insights into the planning stages of a small website.




How the Internet Works

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The Internet Overview

The HTTP Protocol

The HTTPS Protocol

The SMTP Protocol and Local Mail Delivery

Outbound Mail Delivery

Network Basics – LAN and WAN

Network Ports and Firewalls

The Web Development Process – An Overview

Web Development Process Overview

Planning a Website

Web Application Planning Overview