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 lowest logical level.

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

Attributes are assigned at the highest logical level.

True

False

Disjoint with partial specialization

Overlap with partial specialization

Overlap with total specialization

Disjoint with total specialization

All of these

It may include restrictions.

It should not be convertible to computer code.

It should be complex.

When a supertype entity inherits values of the subtype attribute

When a subtype entity inherits values of the supertype attribute

When a supertype entity inherits values of another supertype attribute

When a subtype entity inherits values of another subtype attribute

True

False

True

False

Each supertype has only one subtype.

Each subtype has only one supertype.

Each subtype has only one attribute.

Each supertype has only one attribute.

Condition

Authorization

Integrity Control

Enabler

True

False