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Learn how the Internet Works - HTTP/HTTPS, Mail Delivery (SMTP), LAN, WAN, Network Basics & Firewalls
Updated on Sep, 2026
Programming, Web Development, CSS
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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.
Check out the detailed breakdown of what’s inside the course
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