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Question

What distinguishes "read-only" data in a data warehouse from operational data?

a.

The data format

b.

The color of the data

c.

The complexity of data sources

d.

The functions performed on the data

Answer: (d).The functions performed on the data Explanation:"Read-only" data in a data warehouse undergoes extensive functions, such as data extraction, transformation, cleansing, and integration, which are different from the data conversion in operational systems.

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Q. What distinguishes "read-only" data in a data warehouse from operational data?

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