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Question 146Asked in CIL MT Systems, 26 Mar 2017 (12:30 PM)

Which of the following statements about "total specialization" constraint is TRUE?

  1. AEvery entity in the subclass must be a member of the superclass.
  2. BEvery entity in the superclass must be a member of at least one subclass in the specialization.
  3. CAt least one entity in the superclass must be a member of at least one subclass in the specialization.
  4. DEvery entity in the superclass must be a member of all subclasses in the specialization.
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Correct answer: (B) Every entity in the superclass must be a member of at least one subclass in the specialization.

From CIL MT Systems PYQ, 26 Mar 2017 (12:30 PM)

This is question 146 of CIL MT Systems PYQ, 26 Mar 2017 (12:30 PM). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.