ER MODEL AND BUSINESS RULES QUIZ

True

False

Entity

Relationship

Attribute

Optional One

False

True

When a supertype entity inherits values of the subtype attribute

When a subtype entity inherits values of another subtype attribute

When a supertype entity inherits values of another supertype attribute

When a subtype entity inherits values of the supertype attribute

False

True

True

False

Attributes apply to all of the instances of an entity type.

No attributes apply to any of the instances of an entity type.

An instance of a subtype participates in a relationship that is the same as the other subtypes.

An instance of a subtype participates in a relationship that is unique to that subtype.

An attribute of the supertype whose values determine the supertype

An attribute of the subtype whose values determine the subtype

An attribute of the supertype whose values determine the subtype

An attribute of the subtype whose values determine the supertype

Specific to the organization

Concise

All of these

A singular noun

True

False