Online 1Z0-006 Practice Test

Question 1

Which keyword is used to filter data in a SELECT statement?

Options :

A : HAVING

B :

ORDER BY

C :

GROUP BY

D :

WHERE

Answer: D

Question 2

Which keyword is used to filter results based on a specific condition in a SELECT statement?

Options :

A :

ORDER BY

B :

HAVING

C :

GROUP BY

D :

WHERE

Answer: D

Question 3

Which of the following is NOT typically included in a physical data model?

Options :

A :

Data type specifications for attributes

B :

Tables and columns

C :

Entity-relationship diagrams

D :

Primary and foreign key constraints

Answer: C

Question 4

Why is it important to normalize entity relationships in a physical data model?

Options :

A :

To improve data query performance

B :

To eliminate data redundancy

C :

To define primary and foreign key constraints

D :

To enforce data type specifications

Answer: B

Question 5

What is the purpose of a transaction in a database?

Options :

A :

To execute queries and retrieve data from a database

B :

To define the structure and organization of a database

C :

To ensure the atomicity, consistency, isolation, and durability of database operations

D :

To enforce data integrity and security in a database

Answer: C

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