The Relational Model and Normalization – General Questions

16. A relation in this form is free of all modification anomalies.

A. First normal form
B. Second normal form
C. Third normal form
D. Domain/key normal form

Correct Answer:  D. Domain/key normal form

17. If attributes A and B determine attribute C, then it is also true that:

A.  A → C.
B. B → C.
C. (A,B) is a composite determinant.
D. C is a determinant.

Correct Answer:  C. (A,B) is a composite determinant.

18. A tuple is a(n):

A. column of a table.
B. two dimensional table.
C. row of a table.
D. key of a table.

Correct Answer:  C. row of a table.

19. If attribute A determines both attributes B and C, then it is also true that:

A. A → B.
B. B → A.
C. C → A.
D. (B,C) → A.

Correct Answer:  A. A → B.

20. One solution to the multivalued dependency constraint problem is to:

A. split the relation into two relations, each with a single theme.
B. change the theme.
C. create a new theme.
D. add a composite key.

Correct Answer:  A. split the relation into two relations, each with a single theme.

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