The questions, and what a strong answer contains
What it does
Where the questions come from
The machine and the network under every diagram — 5 modules · 23h
Where the state lives, and what it costs to keep it — 6 modules · 30h
Making the second request cheap — 4 modules · 16h
Decoupling two services without losing a message — 5 modules · 21h
From one box to a fleet, without a rewrite — 5 modules · 17h
What happens on the worst day — 5 modules · 18h
The six systems you will actually be asked to draw — 6 modules · 22h
Running the forty-five minutes on purpose — 5 modules · 12h
The rest of it
Every layer, from a packet to a payment system
Learn the trade-off by paying for it
Drafts the application. Never sends it without you.
A pipeline built for loops, not for a spreadsheet
Preparation scheduled against the round it is for
Design reviews with people who will argue with you
