Your question is Design a Sponsored Ad Ranker. 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).
You are designing the sponsored ad selection and ranking system for a large digital advertising platform. The system must choose which ads to show for each impression, then order them in a way that balances user relevance, advertiser value, and business goals.
How would you create a functional system based on a request from the interviewer?