ER Model and Business Rules Inheritance is which of the following? 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 the supertype attribute When a subtype entity inherits values of another subtype 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 the supertype attribute When a subtype entity inherits values of another subtype attribute ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules 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 Disjoint with total specialization Overlap with total specialization Overlap with partial specialization Disjoint with partial specialization Disjoint with total specialization Overlap with total specialization ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules 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 False True ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules A supertype/subtype hierarchy has which of the following features? Attributes are assigned at the highest logical level. 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. 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. ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules Packaged data models are meant to be exactly right straight out of the box. True False True False ANSWER DOWNLOAD EXAMIANS APP
ER Model and Business Rules Total specialization is represented by double lines between the supertype and subtype on an EER. True False True False ANSWER DOWNLOAD EXAMIANS APP
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