Your question is Sub-Millisecond Data Pipeline Optimization. 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).
Given a requirement for sub-millisecond latency, how do you optimize your data pipeline?
Explain how you would identify the latency budget, reduce data movement and serialization overhead, choose storage and serving patterns, and preserve feature freshness and correctness. Discuss online versus batch processing, capacity planning, measurement, and failure handling.