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Object-Oriented Data Modeling problems


  • 1. 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
  • 2. Multiplicity is the same as what concept for an ERD?

  • Options
  • A. Relationship
  • B. Attribute
  • C. Entity
  • D. Cardinality
  • 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. 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
  • 5. 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
  • 6. 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.
  • Discuss
  • 7. 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
  • 8. Which of the following applies to a class rather than an object?

  • Options
  • A. Query
  • B. Update
  • C. Scope
  • D. Constructor
  • Discuss
  • 9. 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
  • 10. 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

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