ER MODEL AND BUSINESS RULES QUIZ

Subtypes at the higher lever in the hierarchy inherit attributes only from their immediate subtype.

Attributes are assigned at the highest logical level.

Attributes are assigned at the lowest logical level.

Subtypes at the lower lever in the hierarchy inherit attributes only from their immediate supertype.

False

True

False

True

A singular noun

All of these

Specific to the organization

Concise

False

True

An attribute of the subtype whose values determine the supertype

An attribute of the supertype whose values determine the subtype

An attribute of the subtype whose values determine the subtype

An attribute of the supertype whose values determine the supertype

False

True

Overlap with total specialization

Disjoint with total specialization

Disjoint with partial specialization

Overlap with partial specialization

False

True

When a subtype entity inherits values of the supertype attribute

When a supertype entity inherits values of the subtype attribute

When a supertype entity inherits values of another supertype attribute

When a subtype entity inherits values of another subtype attribute