Reference

🔴 P0 — how to split data across multiple databases when one isn’t enough

🔴 P0 — the mathematical foundation for consistency in replicated systems

🔴 P0 — Stripe’s public API is built on this; the implementation of idempotency for APIs

🔴 P0 — the defining characteristic of distributed systems

🟠 P1 — following a request across service boundaries

🔴 P0 — the first design decision that cascades into everything else: scaling, consistency, query performance

🟠 P1 — systematic approaches to choosing what to measure

🔴 P0 — REST vs gRPC vs GraphQL is a standard interview question

🟠 P1 — Dynamo-style replication; no single leader, quorum-based

🟠 P1 — DDIA Ch3 deep knowledge; shows understanding of storage engine internals