How the Network Actually Works

What actually happens between a client and a server, what a millisecond costs, and why you cannot have consistency, availability and partition tolerance at once. Start here if you can draw the boxes but not defend them.

This module is 01.1 of the 5 in Foundations. It runs about 5 hours across 6 lessons, and closes with Packet Path — Route a request through DNS, TLS and three hops, paying the real latency cost of every choice you make.