An action assertion is a statement that expresses some aspect of the static structure of the organization. False True TRUE ANSWER : ? YOUR ANSWER : ?
A subtype discriminator of the supertype is an attribute whose values determine the target subtype(s). True False TRUE ANSWER : ? YOUR ANSWER : ?
A supertype/subtype hierarchy is which of the following? Each supertype has only one attribute. Each supertype has only one subtype. Each subtype has only one attribute. Each subtype has only one supertype. TRUE ANSWER : ? YOUR ANSWER : ?
An entity cluster is a set of one or more entity types and associated relationships. True False TRUE ANSWER : ? YOUR ANSWER : ?
Overlapping and disjoint subtypes have different approaches on how the subtype discriminator is applied. False True TRUE ANSWER : ? YOUR ANSWER : ?
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? Overlap with partial specialization Disjoint with partial specialization Overlap with total specialization Disjoint with total specialization TRUE ANSWER : ? YOUR ANSWER : ?
A rectangle represents which of the following in an EER? Entity Optional One Relationship Attribute TRUE ANSWER : ? YOUR ANSWER : ?
It is appropriate to use a supertype/subtype relationship when there are attributes that apply to some of the instances of an entity type. False True TRUE ANSWER : ? YOUR ANSWER : ?
An oval represents which of the following in an EER? Attribute Optional One Entity Relationship TRUE ANSWER : ? YOUR ANSWER : ?