The Data in a Data Warehouse

question 34

Multiple Choice

The data in a data warehouse:

• A) are updated constantly in real time.
• B) are updated in batch mode, approximately once per day.
• C) are not updated.
• D) are purged constantly as new data enter.
• E) are available for MIS analysts, but not users.

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Definitions:

Oxidation of Ethanol

The chemical reaction in which ethanol loses electrons or is combined with oxygen, typically forming acetic acid as a product.

Zero-Order Reaction

A chemical reaction whose rate does not depend on the concentration of the reactant(s).

Alcohol Dehydrogenase

An enzyme that facilitates the conversion of alcohols to aldehydes or ketones through the process of oxidation, playing a key role in metabolism.

Catalyzes

Increases the rate of a chemical reaction without undergoing any permanent chemical change, typically referencing the action of enzymes.