_ Which type of entity represents a logical generalization whose actua – McqOptions

MCQOPTIONS

1.	_ Which type of entity represents a logical generalization whose actual occurrence is represented by a second, associated entity?$?
A.	Supertype entity
B.	Subtype entity
C.	Archetype entity
D.	Instance entity
Answer» D. Instance entity

Discussion

No Comment Found

Related MCQs

A recursive relationship is a relationship between an archetype and an instance of that archetype.%!
A maximum cardinality is the maximum number of entity instances that can participate in a relationship instance.%!
A subtype entity is a special case of another entity called a supertype entity.%!
An attribute describes the entity's characteristics.%!
An identifier determines the type of relationship that an entity has.%!
In a 1:N relationship, the parent is the entity on the one side of the relationship and the child is the entity on the N side of the relationship.%!
When designing a database, first identify the entities, then determine the attributes, and finally establish the relationships.%!
A minimum cardinality is the minimum number of entity instances that may participate in a relationship instance.%!
An identifier typically uses more than one attribute.%!
1:1, 1:N and N:M relationships are also known as HAS-A relationships.%!