Oriented Data Modeling Questions and Answers

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Q11
The term Incomplete for a UML has the same meaning as which of the following for an EER diagram?
  • A Overlapping rule
  • B Disjoint rule
  • C Total specialization rule
  • D Partial specialization rule
Answer: Option D
Q12
A constructor operation does which of the following?
  • A Creates a new instance of a class
  • B Updates an existing instance of a class
  • C Deletes and existing instance of a class
  • D All of the above.
Answer: Option A
Q13
Which of the following is a technique for hiding the internal implementation details of an object?
  • A Encapsulation
  • B Polymorphism
  • C Inheritance
  • D All of the above.
Answer: Option A
Q14
 Aggregation is which of the following?
  • 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.
Answer: Option A

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