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Data Warehousing MCQs

A data warehouse is built as a separate repository of data, different from the operational data of an enterprise because?

It is necessary to keep the operational data free of any warehouse operations

It contains data derived from multiple sources

A data warehouse cannot afford to allow corrupted data within it

A data warehouse contains summarized data whereas the operational database contains transactional data

Answer

Correct Answer: A data warehouse contains summarized data whereas the operational database contains transactional data

Explanation:

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