Online 1Z0-006 Practice Test

Question 1

What is the role of database indexes in mapping a physical model?

Options :

A :

To optimize database access and retrieval

B :

To define relationships between tables

C :

To ensure data integrity

D :

To determine the data types for each column

Answer: A

Question 2

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 3

What is a primary key in a relational database?

Options :

A :

A constraint that ensures data integrity

B :

A unique identifier for each record in a table

C :

A field that can have multiple values

D :

A foreign key that points to another table

Answer: B

Question 4

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 5

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

EXPERTY DESIGNED 1Z0-006 PRACTICE TEST