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:

Spermatid

Cell derived from the secondary spermatocyte; gives rise to a spermatozoon.

Scrotum

An external sac of skin and muscle containing the testicles in males.

Testes

Male reproductive organs that produce sperm and hormones, including testosterone.

Epididymides

The plural form of epididymis, referring to the paired tubular structures attached to the testes where sperm mature and are stored.