OBJECT ORIENTED DATA MODELING QUIZ

An object is an instance of a class.

A class includes encapsulates only data.

An object includes encapsulates only data.

A class is an instance of an object.

Partial specialization rule

Total specialization rule

Overlapping rule

Disjoint rule

A class that has direct instances, but whose descendants may not have direct instances.

A class that has direct instances, but whose descendants may have direct instances.

A class that has no direct instances, but whose descendants may not have direct instances

A class that has no direct instances, but whose descendants may have direct instances.

Expresses a part-of relationship and is a weaker form of an association relationship.

Expresses a part-of relationship and is a stronger form of an association relationship.

Expresses an is-a relationship and is a stronger form of an association relationship.

Expresses an is-a relationship and is a weaker form of an association relationship.

Total specialization rule

Partial specialization rule

Disjoint rule

Overlapping rule

True

False

Deletes and existing instance of a class

Updates an existing instance of a class

All of these

Creates a new instance of a class

False

True

True

False

False

True