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  1. What is Data Warehouse?

  2. Difference between Operational Database and Data Warehouse?

  3. Why do we need a separate Data Warehouse?

  4. What are the components of a data warehouse?

  5. Why do Business Analysts need Data Warehouse?

  6. What is the process of data warehouse design?

  7. What is a Three-tier Data Warehouse Architecture?

  8. What are the tools and utilities of a data warehouse?

  9. What is Data Integration?

  10. What is Data Transformation?

  11. What is Data Reduction?

  12. What is the basic method of attribute subset selection?

  13. What is Dimensionality Reduction?

  14. What is Numerosity Reduction?

  15. What is Principal Components Analysis?

  16. Difference between Dimensionality Reduction and Numerosity Reduction?

  17. What is Data Discretization?

  18. What are the techniques of Discretization and Concept Hierarchy Generation for Numerical Data?

  19. Difference Between Forward and Backward Reasoning in AI

  20. What is Data Mining?
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