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Object Oriented Data Modeling MCQ Questions and answers | Database | Technical Aptitude

Object Oriented Data Modeling (Database) mcq questions and answers with easy and logical explanations for various competitive examination, interview and entrance test. Database Mcq question are important for technical exam and interview. Page-2 section-1

11
The benefits of object-oriented modeling are which of the following?
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Answer: Option D
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12
The term Incomplete for a UML has the same meaning as which of the following for an EER diagram?
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Answer: Option D
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13
A constructor operation does which of the following?
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Answer: Option A
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14
Which of the following is a technique for hiding the internal implementation details of an object?
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Answer: Option A
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15
Aggregation is which of the following?
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Answer: Option A
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16
A method defines the form or protocol of the operation, but not its implementation.
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Answer: Option B
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17
A class is a concept, abstraction, or thing that makes sense in an application context.
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Answer: Option A
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18
In UML, a class is represented by a rectangle with three compartments separated by vertical lines.
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Answer: Option B
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19
A solid diamond represents a stronger form of aggregation, known as composition.
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Answer: Option A
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20
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.
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Answer: Option A
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