In the Medallion Architecture, which layer would you expect to contain raw data?

In the Medallion Architecture, which layer would you expect to contain raw data?

• A. Bronze
• B. Gold
• C. Silver
• D. Raw

Answer: (A)

Bronze is the layer where data enters the lake in its original form from source systems. It stores raw, minimally transformed data so nothing is lost before any cleaning or enrichment, preserving provenance and schema as it arrived. This makes Bronze the place to inspect source data, track changes, and support lineage. After Bronze, Silver cleans and structures the data, and Gold builds business-ready results. The option labeled Raw is sometimes used informally, but the standard terminology names this raw ingestion as Bronze.

Bronze is the layer where data enters the lake in its original form from source systems. It stores raw, minimally transformed data so nothing is lost before any cleaning or enrichment, preserving provenance and schema as it arrived. This makes Bronze the place to inspect source data, track changes, and support lineage. After Bronze, Silver cleans and structures the data, and Gold builds business-ready results. The option labeled Raw is sometimes used informally, but the standard terminology names this raw ingestion as Bronze.