Your question is Design a Machine Learning System. 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 machine learning system?
Clarify the product objective, prediction task, data constraints, and success criteria before proposing an end-to-end architecture. Your answer should cover scale estimation, data and labeling, model selection, offline and online serving, evaluation, monitoring, and failure handling. Discuss how your design would evolve from an initial implementation to a production system, including training-serving consistency, feature drift, model rollout, and operational tradeoffs.