Online 1Z0-006 Practice Test

Question 1

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 2

What purpose does mapping fulfill in a physical model?

Options :

A :

To specify the primary keys for each table

B :

To optimize the database for efficient querying

C :

To define the table structures and attributes

D :

To establish the relationships between tables

Answer: D

Question 3

What is a primary key?

Options :

A :

An attribute that can have multiple values

B :

A reserved word in SQL

C :

A unique identifier for a data entity

D :

A foreign key in a related table

Answer: C

Question 4

Which SQL keyword is used to delete data from a table?

Options :

A :

REMOVE

B :

DROP

C :

DELETE

D :

ERASE

Answer: C

Question 5

What is the primary step in creating a physical model?

Options :

A :

Normalizing the database tables

B :

Establishing primary and foreign key relationships

C :

Identifying entities and their relationships

D :

Defining the data types for each attribute

Answer: D

EXPERTY DESIGNED 1Z0-006 PRACTICE TEST