Your question is Delta Lake vs Parquet. 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're working on a data pipeline and evaluating storage formats for raw and curated datasets. You want to understand when a table format adds value beyond plain files in object storage.
What is Delta Lake, and what are its key features compared to standard Parquet files?