Which Statements About Data Warehousing Is Not Correct

question 93

Multiple Choice

Which statements about data warehousing is not correct?

• A)The data warehouse should be separate from the operational system.
• B)Data cleansing is a process of transforming data into standard form.
• C)Drill-down is a data-mining tool available to users of OLAP.
• D)Normalization is a requirement of databases included in a data warehouse.

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Definitions:

Probability

Quantifying the potential that an event occurs, with numbers from 0 to 1 representing the range.

Occurrence

The fact or frequency of something happening.

Affected

Being influenced or changed by an external factor.

Probability

A measure of the likelihood or chance that a particular event will occur, expressed as a number between 0 and 1.