আপনি সিস্টেম ডিজাইন সাক্ষাৎকারে কীভাবে পদ্ধতি অনুসরণ করেন?

1. CLARIFY requirements → functional (what it does) + non-functional (scale, latency,
   availability); ask about scope, users, constraints (don't assume — narrow the problem)
2. ESTIMATE scale → users, requests/sec, data volume (informs the design)
3. HIGH-LEVEL design → main components and data flow (API, services, database, cache,
   etc.); draw the architecture
4. DEEP DIVE → detail key components; data model; specific challenges
5. SCALE & TRADE-OFFS → identify bottlenecks; discuss scaling (caching, load balancing,
   sharding, replication); trade-offs of choices