Databricks Certified Data Engineer - Associate
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Which of the following describes the relationship between Gold tables and Silver tables?
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A
Gold tables are more likely to contain aggregations than Silver tables.
B
Gold tables are more likely to contain valuable data than Silver tables.
C
Gold tables are more likely to contain a less refined view of data than Silver tables.
D
Gold tables are more likely to contain more data than Silver tables.
E
Gold tables are more likely to contain truthful data than Silver tables.
Explanation:
In the Databricks Lakehouse architecture, tables are typically organized into Bronze, Silver, and Gold layers:
- Bronze tables: Raw, unprocessed data
- Silver tables: Cleaned, validated, and enriched data
- Gold tables: Aggregated, business-level data for consumption
Gold tables are specifically designed for business consumption and typically contain aggregated data, summary statistics, and business metrics derived from Silver tables. They are optimized for query performance and business intelligence use cases.
Option A is correct because Gold tables indeed contain more aggregations than Silver tables. The other options are incorrect:
- B: Both Silver and Gold tables contain valuable data, but Gold tables are more business-consumable
- C: Gold tables contain MORE refined data than Silver tables (not less)
- D: Gold tables typically contain LESS data than Silver tables due to aggregation
- E: Both layers should contain truthful data, with Silver tables already having cleaned data
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