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Which of the following describes the relationship between Bronze tables and raw data?
A
Bronze tables contain less data than raw data files.
B
Bronze tables contain more truthful data than raw data.
C
Bronze tables contain aggregates while raw data is unaggregated.
D
Bronze tables contain a less refined view of data than raw data.
E
Bronze tables contain raw data with a schema applied.
Explanation:
In the Databricks Medallion Architecture, Bronze tables represent the first layer where raw data is ingested. The key characteristics are:
Raw Data with Schema: Bronze tables contain the raw data as it comes from source systems, but with a schema applied to it. This schema is often borrowed from the original data source or table structure.
No Data Reduction: Bronze tables contain all the raw data - they don't have less data than raw files (option A is incorrect).
Truthfulness: Bronze tables contain the same data as raw sources, not more truthful data (option B is incorrect).
No Aggregation: Bronze tables contain unaggregated data, not aggregates (option C is incorrect).
Refinement Level: Bronze tables contain raw data, which is less refined than Silver or Gold tables, but they don't contain a "less refined view" than raw data itself (option D is incorrect).
The provided text explicitly states: "Bronze tables are basically raw ingested data, often with schema borrowed from the original data source or table." This confirms that option E is correct - Bronze tables contain raw data with a schema applied.