CERTIFIED-DATA-ANALYST-ASSOCIATE · Question #99
CERTIFIED-DATA-ANALYST-ASSOCIATE Question #99: Real Exam Question with Answer & Explanation
The correct answer is A: Medallion architecture. Medallion architecture is correct because it describes a layered data design pattern - typically Bronze (raw), Silver (cleansed), and Gold (business-ready) - where data progressively improves in structure and quality as it moves through each layer in a lakehouse environment. Chan
Question
A data architect has informed a data analyst team that its organization will now use a data design pattern that will logically organize data in a lakehouse, with the goal of incrementally and progressively improving the structure and quality of data as it flows through each layer of the architecture. Which term is used to describe this data design pattern?
Options
- AMedallion architecture
- BChange data feed
- CDelta Lake
- DData mesh
Explanation
Medallion architecture is correct because it describes a layered data design pattern - typically Bronze (raw), Silver (cleansed), and Gold (business-ready) - where data progressively improves in structure and quality as it moves through each layer in a lakehouse environment.
Change data feed (B) is a feature that tracks row-level changes to Delta tables, not an architectural design pattern for organizing a lakehouse. Delta Lake (C) is an open-source storage layer that brings ACID transactions to data lakes - it's a technology that often underpins a medallion architecture, not the pattern itself. Data mesh (D) is a decentralized organizational approach that assigns data ownership to domain teams, addressing governance and ownership - not the progressive data quality layering described here.
Memory tip: Think of a medallion's increasing value - Bronze → Silver → Gold - mirroring how raw data gets progressively refined into high-quality, analytics-ready data as it flows through each layer.
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