Databricks Certified Data Engineer - Associate
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Which of the following statements regarding the relationship between Silver tables and Bronze tables is always true?
Real Exam
Community
KKeng
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A
Silver tables contain a less refined, less clean view of data than Bronze data.
B
Silver tables contain aggregates while Bronze data is unaggregated.
C
Silver tables contain more data than Bronze tables.
D
Silver tables contain a more refined and cleaner view of data than Bronze tables.
E
Silver tables contain less data than Bronze tables.
Explanation:
In the Databricks Lakehouse architecture, the medallion architecture consists of three layers: Bronze, Silver, and Gold. Bronze tables contain raw, unprocessed data ingested from source systems. Silver tables contain cleaned, validated, and enriched data that has been transformed from Bronze tables. Gold tables contain aggregated, business-level data for reporting and analytics. Therefore, Silver tables always contain a more refined and cleaner view of data than Bronze tables, making option D the correct answer.
Key Points:
- Bronze: Raw, unprocessed data
- Silver: Cleaned, validated, enriched data
- Gold: Aggregated, business-level data
- The transformation from Bronze to Silver involves data quality checks, deduplication, schema enforcement, and enrichment.
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