Object Oriented Data Modeling MCQs with Explanations

Polymorphism is the correct answer to “The fact that the same operation may apply to two or more classes is called what”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

Analysis, design, and implementation steps in the given order and using multiple iterations. is the correct answer to “The object-oriented development life cycle is which of the following”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

Cardinality is the correct answer to “Multiplicity is the same as what concept for an ERD”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

Aggregation is the correct answer to “Composition is a stronger form of which of the following”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

A class that has no direct instances, but whose descendants may have direct instances. is the correct answer to “An abstract class is which of the following”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

Total specialization rule is the correct answer to “The term Complete for a UML has the same meaning as which of the following for an EER diagram”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

All of the above is the correct answer to “A UML diagram includes which of the following”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

All of the above is the correct answer to “An object can have which of the following multiplicities”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

An object is an instance of a class. is the correct answer to “Which of the following statement is true concerning objects and/or classes”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

Scope is the correct answer to “Which of the following applies to a class rather than an object”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

All of the above is the correct answer to “The benefits of object-oriented modeling are which of the following”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

Partial specialization rule is the correct answer to “The term Incomplete for a UML has the same meaning as which of the following for an EER diagram”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

Creates a new instance of a class is the correct answer to “A constructor operation does which of the following”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

Encapsulation is the correct answer to “Which of the following is a technique for hiding the internal implementation details of an object”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

Expresses a part-of relationship and is a stronger form of an association relationship. is the correct answer to “Aggregation is which of the following”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

False is the correct answer to “A method defines the form or protocol of the operation, but not its implementation.”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

True is the correct answer to “A class is a concept, abstraction, or thing that makes sense in an application context.”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

False is the correct answer to “In UML, a class is represented by a rectangle with three compartments separated by vertical lines.”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

True is the correct answer to “A solid diamond represents a stronger form of aggregation, known as composition.”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

True is the correct answer to “When a business rule involves three or more graphical symbols, you can show the constraint as a note and attach the note to each of the symbols by a dashed line.”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

True is the correct answer to “A derived element is typically shown by placing either a slash (/) or a stereotype of <> before the name of the element.”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

True is the correct answer to “Composition does not allow an object to be part of more than one aggregate object.”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

True is the correct answer to “In an object diagram, an object is represented as a rectangle with two compartments.”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

False is the correct answer to “An operation that alters the state of an object is known as a constructor operation.”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

True is the correct answer to “Each association has two or more roles.”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

False is the correct answer to “An aggregation is a stronger form of association relationship and is represented with a solid diamond at the aggregate end.”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

True is the correct answer to “The UML notation is useful for graphically depicting an object-oriented analysis or design model.”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

True is the correct answer to “Multiple inheritance allows a class to inherit features from more than one superclass.”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

True is the correct answer to “The reasons for overriding include extension, restriction, and optimization.”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.

True is the correct answer to “An object's state is determined by its attribute values and links to other objects.”. This question is standard in competitive examination syllabi for Object Oriented Data Modeling.