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Object Oriented Data Modeling

Object Oriented Data Modeling
The reasons for overriding include extension, restriction, and optimization.

False
True

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Object Oriented Data Modeling
Each association has two or more roles.

False
True

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Object Oriented Data Modeling
Which of the following statement is true concerning objects and/or classes?

A class is an instance of an object.
An object includes encapsulates only data.
An object is an instance of a class.
A class includes encapsulates only data.

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Object Oriented Data Modeling
In an object diagram, an object is represented as a rectangle with two compartments.

True
False

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Object Oriented Data Modeling
A solid diamond represents a stronger form of aggregation, known as composition.

False
True

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Object Oriented Data Modeling
Which of the following is a technique for hiding the internal implementation details of an object?

Polymorphism
All of these
Encapsulation
Inheritance

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