Welcome to your interview.
The question is on your right: S3 Partitioning for Query Performance. 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.
Explain how you would store, partition, and organize raw transaction data inside an AWS S3 bucket to optimize query performance for Fetch.