Alex Lu System Design Interview Pdf Patched Fix [ Desktop QUICK ]

Use tools like Excalidraw to practice sketching architectures quickly. Speed matters when you only have 45 minutes. Conclusion

Using Kafka or RabbitMQ to decouple services and handle asynchronous tasks. alex lu system design interview pdf patched

Place your Load Balancer, Web Servers, and Databases. Place your Load Balancer, Web Servers, and Databases

Never start drawing boxes immediately. Spend the first 5-10 minutes asking clarifying questions: (B2B vs. B2C) What is the DAU (Daily Active Users)? What are the core features? (Focus on the MVP). What are the constraints? (Latency vs. Availability). 2. Propose High-Level Design and Get Buy-In B2C) What is the DAU (Daily Active Users)

How do you handle 10x traffic? (Sharding, Replication). Resiliency: What happens if a Data Center goes down?

When to use SQL (structured data, ACID compliance) versus NoSQL (unstructured data, horizontal scaling).

Sketch the "big picture" before detailing the database schema. Define the basic APIs.