Latency Numbers & Estimation

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 01.2 of the 5 in Foundations. It runs about 4 hours across 5 lessons, and closes with Envelope — Size six systems against a ticking clock. Order of magnitude is a pass; a decimal place is not required.