Database - Oriented Data Modeling

Database - Oriented Data Modeling
1. The fact that the same operation may apply to two or more classes is called what?
  • Inheritance
  • Polymorphism
  • Encapsulation
  • Multiple classification
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2.  The object-oriented development life cycle is which of the following?
  • Analysis, design, and implementation steps in the given order and using multiple iterations.
  • Analysis, design, and implementation steps in the given order and going through the steps no more than one time.
  • Analysis, design, and implementation steps in any order and using multiple iterations.
  • Analysis, design, and implementation steps in any order and going through the steps no more than one time.
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3. Multiplicity is the same as what concept for an ERD?
  • Relationship
  • Attribute
  • Entity
  • Cardinality
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4. Composition is a stronger form of which of the following?
  • Aggregation
  • Encapsulation
  • Inheritance
  • All of the above.
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5. An abstract class is which of the following?
  • A class that has direct instances, but whose descendants may have direct instances
  • A class that has no direct instances, but whose descendants may have direct instances.
  • A class that has direct instances, but whose descendants may not have direct instances.
  • A class that has no direct instances, but whose descendants may not have direct instances
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6. The term Complete for a UML has the same meaning as which of the following for an EER diagram?
  • Overlapping rule
  • Disjoint rule
  • Total specialization rule
  • Partial specialization rule
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7. A UML diagram includes which of the following?
  • Class name
  • List of attributes
  • List of operations
  • All of the above.
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8.
  • An object can have which of the following multiplicities?
  • Zero
  • One
  • More than one
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9. Which of the following statement is true concerning objects and/or classes?
  • An object is an instance of a class.
  • A class is an instance of an object.
  • An object includes encapsulates only data.
  • A class includes encapsulates only data.
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10. The benefits of object-oriented modeling are which of the following?
  • The ability to tackle more challenging problems
  • Reusability of analysis, design, and programming results
  • Improved communication between users, analysts, etc.
  • All of the above.
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