DSA patterns Cheat Sheet

DSA patterns Cheat Sheet - Hojas de cálculo de Google

100+ Best System Design Resources for Interview and Learning

https://github.com/javabuddy/best-system-design-resources

Awesome System Design Resources

https://github.com/ashishps1/awesome-system-design-resources

Techniques to ace System Design interviews

1. Requirements first (functional + non-functional)
2. Pick 2–3 core user flows and design around them
3. Put real numbers on scale (QPS, data/day, peak vs avg
4. Draw the read path and write path separately
5. Choose data model from access patterns (not vibes)
6. Cache strategy: what, where, TTL, invalidation story
7. Consistency choices: what must be strong vs can be eventual
8. Idempotency + retries + dedupe for every write API