Which of the Following Is True of Packaged Data Models

question 57

Multiple Choice

Which of the following is true of packaged data models?

• A) Relationships are connected to the highest-level entity type in an order that makes sense.
• B) All subtype/supertype relationships follow the total specialization and disjoint rules.
• C) No entities on the many sides of a relationship can be weak.
• D) All weak entities are considered strong.

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Definitions:

Reciprocity

A social principle that involves exchanging things with others for mutual benefit.

Attraction

A magnetic quality or force that draws individuals together, leading to friendship, love, or interest.

Kitty Genovese

A New York City woman whose 1964 murder prompted research into the bystander effect due to reports that witnesses failed to help her.

Brutal Assault

An extremely violent and aggressive attack on someone, typically resulting in severe physical harm.