Grokking Microservices for System Design Interviews

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Decision Cheat Sheets

1. How to Use This Page

Every major decision in the course is a table below. Each one gives you three things: the question, the options, and the deciding variable. A deciding variable is the single fact that picks the answer for you.

Naming what decides beats reciting the options. That one sentence is why this page exists.

This is the final-hour skim. The columns to memorize are the deciding variables. Every candidate can list options. Very few can say what tips the choice one way or the other.

2. Architecture

Split or not?

SignalDirection

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