Build a production-ready system that handles millions of users with high availability and low latency
99.99% uptime required
Millions of requests/sec
Low latency worldwide
Data protection critical
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Before designing any system, we need to understand the requirements. What are users trying to accomplish? What scale do we need to handle?
Think about who uses this system and what they need to accomplish. Consider peak traffic scenarios.
Always start with clarifying questions in a real interview!