APICS Certified Supply Chain Professional (CSCP) — Question 339

In which of the following file formats is data from Delta Lake tables primarily stored?

Answer options

• A. Delta
• B. CSV
• C. Parquet
• D. JSON
• E. A proprietary, optimized format specific to Databricks

Correct answer: C

Explanation

The correct answer is C, Parquet, which is the underlying file format used by Delta Lake for efficient data storage and retrieval. Options A, B, D, and E are incorrect because Delta Lake specifically utilizes Parquet as its storage format, rather than relying on CSV, JSON, or a proprietary format.