Learn DNS, TCP, UDP, ports, and CDNs - the building blocks of the Internet.
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The Internet is built on layers of networking protocols that work together to deliver data across the globe.
In this section you’ll learn about the fundamental networking concepts that underpin the web: DNS for name resolution, TCP and UDP for data transport, ports for service addressing, and CDNs for content delivery.
Lessons in this unit:
| 0: | ▶︎ Introduction |
| 1: | What is a CDN? |
| 2: | DNS, Domain Name System |
| 3: | What is a port |
| 4: | The TCP Protocol |
| 5: | The UDP Protocol |