Your question is System Design: Methods for a Task. 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).
Design some methods to accomplish a specific task, collaborating with the interviewer to reach a final solution.
Clarify the task, users, data, success criteria, and operational constraints before proposing an ML system. Explain the end-to-end design, including data collection, training, inference, evaluation, monitoring, and fallback behavior. Where requirements are unspecified, state assumptions and ask targeted questions rather than inventing a product context.