Object Oriented Data Modeling An abstract class is which of the following? A class that has no direct instances, but whose descendants may 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 direct instances, but whose descendants may not have direct instances. A class that has no direct instances, but whose descendants may 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 direct instances, but whose descendants may not have direct instances. ANSWER DOWNLOAD EXAMIANS APP
Object Oriented Data Modeling Each association has two or more roles. False True False True ANSWER DOWNLOAD EXAMIANS APP
Object Oriented Data Modeling The fact that the same operation may apply to two or more classes is called what? Encapsulation Polymorphism Multiple classification Inheritance Encapsulation Polymorphism Multiple classification Inheritance ANSWER DOWNLOAD EXAMIANS APP
Object Oriented Data Modeling A solid diamond represents a stronger form of aggregation, known as composition. False True False True ANSWER DOWNLOAD EXAMIANS APP
Object Oriented Data Modeling The reasons for overriding include extension, restriction, and optimization. True False True False ANSWER DOWNLOAD EXAMIANS APP
Object Oriented Data Modeling An object can have which of the following multiplicities? One All of these More than one Zero One All of these More than one Zero ANSWER DOWNLOAD EXAMIANS APP
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