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Question

What is the purpose of estimating the nature and extent of drill-down and roll-up facilities in a data warehouse?

a.

To determine the composition of the user community

b.

To identify the location of the data warehouse

c.

To enhance OLAP capabilities

d.

To provide the necessary features for complex data analysis

Answer: (d).To provide the necessary features for complex data analysis Explanation:Estimating the nature and extent of drill-down and roll-up facilities helps provide the necessary features for complex data analysis in a data warehouse.

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Q. What is the purpose of estimating the nature and extent of drill-down and roll-up facilities in a data warehouse?

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