Your question is End-to-End ML Training Process. 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).
Describe your complete ML training process, including feature engineering, model selection, hyperparameter tuning, and post-deployment monitoring.
Explain how you would prevent data leakage, select validation schemes, compare models, define success metrics, and decide when to retrain. Include a practical implementation that can be adapted to a real production dataset.