Your question is High-Frequency Data Update Service. 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 an infrastructure service that handles high-frequency data updates for Millennium Management?
Clarify the unspecified workload, consistency, freshness, and availability requirements before proposing the design. Explain how the service should ingest, validate, process, persist, publish, and monitor updates, and where machine learning is appropriate versus deterministic infrastructure.