Which of the Following Is True About Identifiers of Entities

question 77

Multiple Choice

Which of the following is true about identifiers of entities?

• A) Identifiers must be unique.
• B) Identifiers are not normally used in a naming role.
• C) The value of an identifier may identify a set of entity instances.
• D) Identifiers may not be more than two attributes.
• E) An identifier in the E-R model is equivalent to a key in the relational model.

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Definitions:

Aided Recall

Occurs when consumers recognize a name (e.g., of a brand) that has been presented to them.

Brand

A name, term, design, symbol, or any other feature that identifies one seller's good or service as distinct from those of other sellers.

Marketing Researcher

A professional who studies market conditions, trends, and consumer behaviors to improve marketing strategies and product development.

Top-of-Mind Awareness

The first brand or product that comes to a consumer's mind when thinking about a particular industry or category.