Question 1

What is the role of normalization during the mapping of the physical model?

Options :

A :

To determine the primary key of each table

B :

To improve query performance

C :

To eliminate redundancy in the database

D :

To ensure data integrity and consistency

Answer: C

Question 2

What is the purpose of mapping the physical model in database design?

Options :

A :

To define the relationships between tables

B :

To define the data types for each column

C :

To optimize database performance

D :

To ensure data integrity

Answer: C

Question 3

What is the purpose of the COMMIT statement in SQL?

Options :

A :

To delete data from a table

B :

To make permanent changes to the database

C :

To insert data into a table

D :

To update data in a table

Answer: B

Question 4

What is a database?

Options :

A :

A program that manages data

B :

A network of interconnected computers

C :

A collection of related data

D :

A physical storage device for data

Answer: C

Question 5

What is the purpose of denormalization in a physical model?

Options :

A :

To establish primary and foreign key relationships

B :

To enforce data integrity

C :

To improve data retrieval performance

D :

To eliminate all redundancy in the database

Answer: C

Free 1Z0-006 Mock Exam – Practice Online Confidently

Buying Options: