Database Management System - DBMS Solved Questions and Answers on Normalization

Questions

11 Third normal form is based on the concept of _________

A Closure Dependency

B Transitive Dependency

C Normal Dependency

D Functional Dependency

Answer: Option [B]

12 Third normal form is inadequate in situations where the relation :

A has multiple candidate keys

B has candidate keys that are composite

C has overlapped candidate keys

D none of the above

Answer: Option [D]

13 Which of the following statements is/are true ?

A A relation is in BCNF if it is not in 4NF

B BCNF is stricter than 3NF

C A relation is in BCNF if every determinant of the relation is a candidate key.

D All are true

Answer: Option [D]

14 Which normal form is considered as adequate for usual database design ?

A 2NF

B 3NF

C 4NF

D 5NF

Answer: Option [B]

15 Which of the following is true ?

A A relation in BCNf is always in 3NF.

B A relation in 3NF is always in BCNF.

C BCNF and 3NF are same.

D A relation in BCNF is not in 3NF

Answer: Option [A]

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