An analytical lake must expose traceable quality boundaries and preserve source detail. Which layer mapping is appropriate?

Choose the single best answer.

A.Refined/silver replaces every requirement for source retention and access control
B.Raw/bronze preserves source; refined/silver cleans and standardizes; curated/gold serves business-ready data
C.Curated/gold is an unrestricted quarantine for malformed records
D.Raw/bronze automatically contains only approved business aggregates

Show the answer and explanation

✓ Correct answer

Raw/bronze preserves source; refined/silver cleans and standardizes; curated/gold serves business-ready data

The layers distinguish source retention, cleansing, and serving. Raw is not automatically curated, quarantine needs protection, and refined output does not eliminate replay/security requirements. Source guide: PDF page 33.

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