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MCQs

Total Questions : 46 | Page 5 of 5 pages
Question 41. . When an entity instance may be a member of multiple subtypes or it does not have to be a member of a subtype, it is which of the following?
  1.    Disjoint with total specialization
  2.    Disjoint with partial specialization
  3.    Overlap with total specialization
  4.    Overlap with partial specialization
 Discuss Question
Answer: Option C. -> Overlap with total specialization
Question 42. . A subtype discriminator is which of the following?
  1.    An attribute of the supertype whose values determine the subtype
  2.    An attribute of the subtype whose values determine the supertype
  3.    An attribute of the supertype whose values determine the supertype
  4.    An attribute of the subtype whose values determine the subtype
 Discuss Question
Answer: Option A. -> An attribute of the supertype whose values determine the subtype
Question 43. . Use of a supertype/subtype relationship is necessary when which of the following exists?
  1.    An instance of a subtype participates in a relationship that is unique to that subtype.
  2.    An instance of a subtype participates in a relationship that is the same as the other subtypes.
  3.    Attributes apply to all of the instances of an entity type.
  4.    No attributes apply to any of the instances of an entity type.
 Discuss Question
Answer: Option A. -> An instance of a subtype participates in a relationship that is unique to that subtype.
Question 44. . A subtype entity name should be which of the following?
  1.    A singular noun
  2.    Specific to the organization
  3.    Concise
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 45. . Which of the following is not one of the three ways to classify an action assertion?
  1.    Condition
  2.    Integrity Control
  3.    Authorization
  4.    Enabler
 Discuss Question
Answer: Option D. -> Enabler
Question 46. . Which of the following is not one of the three ways to classify an action assertion?
  1.    Condition
  2.    Integrity Control
  3.    Authorization
  4.    Enabler
 Discuss Question
Answer: Option D. -> Enabler

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