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Object Oriented Data Modeling

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

True
False

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Object Oriented Data Modeling
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.

False
True

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Object Oriented Data Modeling
Multiplicity is the same as what concept for an ERD?

Relationship
Attribute
Cardinality
Entity

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Object Oriented Data Modeling
A constructor operation does which of the following?

Deletes and existing instance of a class
Updates an existing instance of a class
Creates a new instance of a class
All of these

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Object Oriented Data Modeling
An aggregation is a stronger form of association relationship and is represented with a solid diamond at the aggregate end.

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
Encapsulation
Inheritance
All of these

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