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  • Question
  • Which of the following is a technique for hiding the internal implementation details of an object?


  • Options
  • A. Encapsulation
  • B. Polymorphism
  • C. Inheritance
  • D. All of the above.

  • Correct Answer
  • Encapsulation 


  • Object-Oriented Data Modeling problems


    Search Results


    • 1. The fact that the same operation may apply to two or more classes is called what?

    • Options
    • A. Inheritance
    • B. Polymorphism
    • C. Encapsulation
    • D. Multiple classification
    • Discuss
    • 2. The object-oriented development life cycle is which of the following?

    • Options
    • A. Analysis, design, and implementation steps in the given order and using multiple iterations.
    • B. Analysis, design, and implementation steps in the given order and going through the steps no more than one time.
    • C. Analysis, design, and implementation steps in any order and using multiple iterations.
    • D. Analysis, design, and implementation steps in any order and going through the steps no more than one time.
    • Discuss
    • 3. The term Incomplete for a UML has the same meaning as which of the following for an EER diagram?

    • Options
    • A. Overlapping rule
    • B. Disjoint rule
    • C. Total specialization rule
    • D. Partial specialization rule
    • Discuss
    • 4. Multiplicity is the same as what concept for an ERD?

    • Options
    • A. Relationship
    • B. Attribute
    • C. Entity
    • D. Cardinality
    • Discuss
    • 5. The term Complete for a UML has the same meaning as which of the following for an EER diagram?

    • Options
    • A. Overlapping rule
    • B. Disjoint rule
    • C. Total specialization rule
    • D. Partial specialization rule
    • Discuss
    • 6. Aggregation is which of the following?

    • Options
    • A. Expresses a part-of relationship and is a stronger form of an association relationship.
    • B. Expresses a part-of relationship and is a weaker form of an association relationship.
    • C. Expresses an is-a relationship and is a stronger form of an association relationship.
    • D. Expresses an is-a relationship and is a weaker form of an association relationship.
    • Discuss
    • 7. Which of the following applies to a class rather than an object?

    • Options
    • A. Query
    • B. Update
    • C. Scope
    • D. Constructor
    • Discuss
    • 8. A UML diagram includes which of the following?

    • Options
    • A. Class name
    • B. List of attributes
    • C. List of operations
    • D. All of the above.
    • Discuss
    • 9. Which of the following statement is true concerning objects and/or classes?

    • Options
    • A. An object is an instance of a class.
    • B. A class is an instance of an object.
    • C. An object includes encapsulates only data.
    • D. A class includes encapsulates only data.
    • Discuss
    • 10. The benefits of object-oriented modeling are which of the following?

    • Options
    • A. The ability to tackle more challenging problems
    • B. Reusability of analysis, design, and programming results
    • C. Improved communication between users, analysts, etc.
    • D. All of the above.
    • Discuss


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