Physical Database Design Is Necessary ____

question 15

Multiple Choice

Physical database design is necessary ____.

• A) to eliminate the data redundancy left over from logical database design
• B) to make the first pass at arranging the attributes into related groupings
• C) to improve the performance of the run-time environment.
• D) to place foreign keys where they need to be to model the relationships in the business environment
• E) to prepare for logical database design

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Definitions:

Aquarium Light

A specialized form of lighting designed to simulate natural light and promote the health and behavior of aquatic plants and animals in aquariums.

Conditioned Stimulus

Within classical conditioning, an initially neutral stimulus becomes linked with an unconditioned stimulus and ultimately elicits a conditioned response.

Neutral Stimulus

In conditioning, a stimulus that initially elicits no specific response other than focusing attention, which can eventually elicit a conditioned response when paired with an unconditioned stimulus.

Unconditioned Response

A natural, unlearned reaction to an unconditioned stimulus, part of classical conditioning theory.