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MCQs

Total Questions : 46 | Page 5 of 5 pages
Question 41. . The benefits of object-oriented modeling are which of the following?
  1.    The ability to tackle more challenging problems
  2.    Reusability of analysis, design, and programming results
  3.    Improved communication between users, analysts, etc.
  4.    All of the above.
 Discuss Question
Answer: Option D. -> All of the above.
Question 42. . The term Incomplete for a UML has the same meaning as which of the following for an EER diagram?
  1.    Overlapping rule
  2.    Disjoint rule
  3.    Total specialization rule
  4.    Partial specialization rule
 Discuss Question
Answer: Option D. -> Partial specialization rule
Question 43. . Which of the following is a technique for hiding the internal implementation details of an object?
  1.    Encapsulation
  2.    Polymorphism
  3.    Inheritance
  4.    All of the above.
 Discuss Question
Answer: Option A. -> Encapsulation
Question 44. . A constructor operation does which of the following?
  1.    Creates a new instance of a class
  2.    Updates an existing instance of a class
  3.    Deletes and existing instance of a class
  4.    All of the above.
 Discuss Question
Answer: Option A. -> Creates a new instance of a class
Question 45. . Aggregation is which of the following?
  1.    Expresses a part-of relationship and is a stronger form of an association relationship.
  2.    Expresses a part-of relationship and is a weaker form of an association relationship.
  3.    Expresses an is-a relationship and is a stronger form of an association relationship.
  4.    Expresses an is-a relationship and is a weaker form of an association relationship.
 Discuss Question
Answer: Option A. -> Expresses a part-of relationship and is a stronger form of an association relationship.
Question 46. . Aggregation is which of the following?
  1.    Expresses a part-of relationship and is a stronger form of an association relationship.
  2.    Expresses a part-of relationship and is a weaker form of an association relationship.
  3.    Expresses an is-a relationship and is a stronger form of an association relationship.
  4.    Expresses an is-a relationship and is a weaker form of an association relationship.
 Discuss Question
Answer: Option A. -> Expresses a part-of relationship and is a stronger form of an association relationship.

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