Question
What are the usual layers in a three-tier data warehouse architecture?
Select an option. Your answer will be checked instantly.
Correct Answer: B. Data storage, OLAP or semantic processing, and front-end BI tools
Explanation:
The bottom tier stores and integrates data, the middle tier provides analytical services, and the top tier presents BI.
Separating layers improves scalability, manageability, and tool independence.
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