QUESTION 37

A data model consists of

a. schema

b. set of operations

c. set of constraints

d. All of a., b., and c.

QUESTION 38

The reason why a database table is in the first normal form (1NF), but not in the second form (2NF) is because:

a. There is a non-prime attribute that is partially dependent on the key of the table.

b. There is a nested table or a complex object structure embedded in the table.

c. There is an many-to-many relationship embedded in the table.

d. All of a., b., and c.

QUESTION 39

If there are only two attributes in a database table, then

a. the database table is in the first normal form,

b. The database table is in the second normal form,

c. the database table is in the third normal form,

d. the database table is in the Boyce-Codd normal form,

e. all of a., b., c. and d.