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Answer: Silver is optimized for ETL processes, while Gold is optimized for query performance.
The Gold Layer in Medallion Architecture is designed to power ML applications, reporting, dashboards, and ad hoc analytics with refined views of data, often including aggregations. It aims to reduce strain on production systems and optimize query performance for business-critical data. Understanding the distinct roles of each layer (Bronze, Silver, Gold) in medallion architecture is crucial for the exam, as questions may target the purpose of each layer.
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In the medallion architecture, how do the silver and gold layers primarily differ?
A
Silver is optimized for ETL processes, while Gold is optimized for query performance.
B
Silver may contain aggregated data, whereas Gold may preserve the granularity of the original data.
C
Gold is optimized for ETL processes, while Silver is optimized for query performance.
D
Silver is a copy of Bronze, and Gold is a copy of Silver.
E
Silver is stored in Delta Lake, and Gold is stored in memory.
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