Which Is True of an Autonumber Key

question 29

Multiple Choice

Which is true of an autonumber key?

• A)It can be used,with consecutive integer values,when no other primary key is available.
• B)If a "natural" primary key,such as product code,is available,it is a better option than an autonumber primary key; it will lead to more accurate query results.
• C)It is best used as a primary key in conjunction with another primary key,such as a Social Security number.
• D)It has often been used in Access database tables,but it shouldn't be used in an Excel Data Model.

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Definitions:

Temporal Lobes

Portions of the brain located beneath the temples, crucial for processing auditory information and involved in memory formation.

Frontal Lobes

The part of the cerebral cortex that lies at the front of the brain, associated with reasoning, planning, parts of speech, movement, emotions, and problem solving.

Hippocampus

A brain region involved in memory formation, navigation, and emotional processing.

Hypothalamus

A neural structure located below the thalamus; it directs several maintenance activities (eating, drinking, body temperature), helps govern the endocrine system via the pituitary, and is linked to emotion and reward.