Examveda
Examveda

When an entity instance may be a member of multiple subtypes or it does not have to be a member of a subtype, it is which of the following?

A. Disjoint with total specialization

B. Disjoint with partial specialization

C. Overlap with total specialization

D. Overlap with partial specialization

Answer: Option C

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Related Questions on ER Model and Business Rules

Inheritance is which of the following?

A. When a supertype entity inherits values of the subtype attribute

B. When a subtype entity inherits values of the supertype attribute

C. When a supertype entity inherits values of another supertype attribute

D. When a subtype entity inherits values of another subtype attribute

A subtype discriminator is which of the following?

A. An attribute of the supertype whose values determine the subtype

B. An attribute of the subtype whose values determine the supertype

C. An attribute of the supertype whose values determine the supertype

D. An attribute of the subtype whose values determine the subtype