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MCQs

Total Questions : 30 | Page 2 of 3 pages
Question 11. A binary relationship cannot be which of the following?
  1.    One-to-One
  2.    Many-to-Many
  3.    Zero-to-Zero
  4.    One-to-Many
 Discuss Question
Answer: Option C. -> Zero-to-Zero
Question 12. A good business rule is which of the following?
  1.    Declarative
  2.    Imprecise
  3.    Redundant
  4.    Compound
 Discuss Question
Answer: Option A. -> Declarative
Question 13. When the minimum number of instances of an entity is one, you know which of the following?
  1.    Mandatory many
  2.    Mandatory one
  3.    Optional one
  4.    Cannot tell
 Discuss Question
Answer: Option D. -> Cannot tell
Question 14. A composite attribute is which of the following?
  1.    An attribute that can be broken into components
  2.    Multiple attributes
  3.    An attribute that cannot be broken into components
  4.    An identifier
 Discuss Question
Answer: Option A. -> An attribute that can be broken into components
Question 15. A ternary relationship involves how many entities?
  1.    3 or less
  2.    More than 3
  3.    3
  4.    3 or more
 Discuss Question
Answer: Option C. -> 3
Question 16. Relationships cannot have attributes.
  1.    True
  2.    False
 Discuss Question
Answer: Option B. -> False
Question 17. An attribute is a person, place, object, event in a user environment.
  1.    True
  2.    False
 Discuss Question
Answer: Option B. -> False
Question 18. Output reports should be included as part of an ERD.
  1.    True
  2.    False
 Discuss Question
Answer: Option B. -> False
Question 19. Cardinality specifies the number of instances of one entity that can be associated with each instance of another entity.
  1.    False
  2.    True
 Discuss Question
Answer: Option B. -> True
Question 20. Business rules and policies are universal.
  1.    True
  2.    False
 Discuss Question
Answer: Option B. -> False

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