Logical Database Design - Database MCQ Questions and answers- Technical Aptitude

A. no primary key attribute may be null.

B. no primary key can be composite.

C. no primary key may be unique.

D. no primary key may be equal to a value in a foreign key.

A. One relation is created.

B. Two relations are created.

C. Three relations are created.

D. Four relations are created.

A. First normal form

B. Second normal form

C. Third normal form

D. Fourth normal form

A. Any attribute

B. The same thing as a primary key

C. An attribute that serves as the primary key of another relation

D. An attribute that serves no purpose

A. A functional dependency between two or more key attributes.

B. A functional dependency between two or more nonkey attributes.

C. A relation that is in first normal form.

D. A relation that is in second normal form.

A. One relation is created.

B. Two relations are created.

C. Three relations are created.

D. Four relations are created.

A. First normal form

B. Second normal form

C. Third normal form

D. Fourth normal form

A. Any attribute

B. An attribute that uniquely identifies each row

C. An attribute that uniquely identifies each column

D. A derived attribute

A. data in the form of tables.

B. data redundancy.

C. operations using non-SQL languages.

D. unorganized data.

A. One relation is created.

B. Two relations are created.

C. Three relations are created.

D. Four relations are created.