Which of the Following Is Not True About Subtype Entities

question 52

Multiple Choice

Which of the following is not true about subtype entities?

• A)Subtypes may be exclusive.
• B)The supertype and subtypes will have the same identifier.
• C)Subtypes are used to avoid a situation in which some attributes are required to be null.
• D)Subtypes have attributes that are required by the supertype.
• E)Subtypes can produce a closer-fitting data model.

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Definitions:

Other-race Effect

The tendency to more easily recognize faces of the race that one is most familiar with, also known as the cross-race effect.

Situational Attributions

The process of assigning the cause of behavior to some situation or event outside a person's control rather than to some internal characteristic.

Social Influence

The effect that the words, actions, or mere presence of other people have on our thoughts, feelings, attitudes, or behavior.

Scots-Irish Herders

Descendants of Scottish and Irish immigrants in the United States, particularly those who engaged in herding and pastoral activities.