Which of the Following Is True of a Data Model

question 15

Multiple Choice

Which of the following is true of a data model?

• A)It is created after the database is designed.
• B)It is an attribute whose value is associated with only one entity instance.
• C)It is a logical representation of the structure of the data.
• D)It does not describe the relationships among the data.

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Definitions:

Barely Perceptible

Something so slight or minimal that it is almost impossible to notice or detect.

Light Waves

The form in which light travels, consisting of oscillating electric and magnetic fields, which allows it to propagate through various mediums, including a vacuum.

Amplitude

The height of a wave from the middle to the crest (top) or trough (bottom), measuring the strength or intensity of the wave.

Shorter

Having lesser length, height, or duration than something else or than is typical.