Mind Maps

System Design Interview Cheat Sheet

Mind Maps diagram · made in Skemio

Mind map of system design interview topics branching into Scope, Traffic Routing, Caching Tier, Data Storage, and Async Processing.
Mind map of system design interview topics branching into Scope, Traffic Routing, Caching Tier, Data Storage, and Async Processing.
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What it shows

  • Scope constraints and calculate QPS before choosing any infrastructure.
  • Layer caches with Redis or Memcached to protect database read replicas.
  • Balance traffic with Layer 4 vs Layer 7 load balancers strategically.

The takeaway

Structure beats trivia: define throughput, isolate bottlenecks, and scale layers independently.

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