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MCQs

Total Questions : 65 | Page 3 of 7 pages
Question 21. In a relation, the order of the rows matters.
  1.    True
  2.    False
 Discuss Question
Answer: Option B. -> False
Question 22. A relation is a two-dimensional table.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 23. In a relation, the rows are sometimes called "records".
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 24. Any table that meets the definition of a relation is said to be in first normal form.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 25. A candidate key is a determinant that determines all the other columns is a relation.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 26. A relation is in 5NF when multivalued dependencies are isolated in their own relation.
  1.    True
  2.    False
 Discuss Question
Answer: Option B. -> False
Question 27. The only reason for the existence of relations is to store instances of functional dependencies.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 28. The functional dependency R → S means that the value of S can be determined when we are given a value of R.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 29. In a relation, the columns are sometimes called "attributes".
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 30. In a relation, the order of the columns does not matter.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True

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