Your question is Metrics for Bing Search. 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 develop metrics to measure the quality of Bing Search and its recommendations, and how would you evaluate those metrics to improve the product?
Asked in the technical round 1 stage. Address both search-result quality and recommendation quality, including how you would validate that metrics reflect user value rather than superficial engagement.