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Data Warehousing

Data Warehousing
Periodic data are data that are physically altered once added to the store.

False
True

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Data Warehousing
Independent data marts are often created because an organization focuses on a series of short-term business objectives.

True
False

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Data Warehousing
Fact tables are which of the following?

Completely normalized
Partially denoralized
Partially normalized
Completely denoralized

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Data Warehousing
Data in the data warehouse are loaded and refreshed from operational systems.

False
True

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Data Warehousing
Star schema is suited to online transaction processing, and therefore is generally used in operational systems, operational data stores, or an EDW.

True
False

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Data Warehousing
The role of the ETL process is to identify erroneous data and to fix them.

True
False

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