Your question is Real-Time Data Processing Design. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
How would you design a system to handle real-time data processing?
Explain the architecture, including ingestion, stream processing, storage, serving, orchestration, and monitoring. Address delivery semantics, ordering, schema evolution, data quality, failure recovery, replay and backfills, scaling bottlenecks, and how you would validate latency and correctness in production.