Welcome to your interview.
The question is on your right: Delta Lake Partition and File Sizing. Take a moment with it first.
Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes). Discussion and graded submissions share your five interviewer interactions, so spend them well.
Describe your approach to optimizing partition strategies and file sizing in Delta Lake to improve query performance.