Exam 13: Object-Oriented Data Modeling
Exam 1: The Database Environment and Development Process173 Questions
Exam 2: Modeling Data in the Organization121 Questions
Exam 3: The Enhanced E-R Model and Business Rules74 Questions
Exam 4: Logical Database Design and the Relational Model120 Questions
Exam 5: Physical Database Design and Performance105 Questions
Exam 6: Introduction to SQL119 Questions
Exam 7: Advanced SQL111 Questions
Exam 8: Database Application Development100 Questions
Exam 9: Data Warehousing117 Questions
Exam 10: Data Quality and Integration102 Questions
Exam 11: Data and Database Administration116 Questions
Exam 12: Distributed Databases109 Questions
Exam 13: Object-Oriented Data Modeling91 Questions
Exam 14: Using Relational Databases to Provide Object Persistence113 Questions
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A(n)________ operation does not alter the state of an object.
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(Short Answer)
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query
An instance of a subclass is not always an instance of its superclass.
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(True/False)
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False
A class diagram shows the dynamic structure of an object-oriented model.
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(True/False)
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False
A class that can have direct instances is called an abstract class.
(True/False)
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A ternary relationship can easily be replaced by three binary relationships.
(True/False)
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A part object that belongs to only one whole object and lives and dies with the whole object is called ________.
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________ is the technique of hiding the internal implementation details of an object from its external view.
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An object class is a set of objects that share a common structure and behavior.
(True/False)
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Overriding for optimization implements a new operation with improved code by exploiting the restrictions imposed by the superclass.
(True/False)
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A(n)________ shows the static structure of an object-oriented model.
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Aggregation is a(n)________ relationship between a component object and an aggregate object.
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Which of the following is a function or service provided by all instances of a class?
(Multiple Choice)
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A part object which belongs to only one whole object,and which lives and dies with the whole object is called a(n):
(Multiple Choice)
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A(n)________ operation has side effects since it alters the state of an object.
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When an object is an instance of more than one class,it is called:
(Multiple Choice)
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In overriding for restriction,the protocol of the new operation in the subclass is restricted.
(True/False)
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A(n)________ is an attribute of a class that specifies a value common to an entire class.
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