Free Oracle 1Z0-006 Exam Questions

Become Oracle Certified with updated 1Z0-006 exam questions and correct answers

Page: 1 / 71

Total 352 Questions | Updated On: Nov 25, 2025

Add To Cart

Question 1

What is the purpose of denormalization in the physical model?

A : To define relationships between tables

B : To optimize database performance

C : To reduce data redundancy and inconsistency

D : To enforce data integrity constraints

Answer: B

Question 2

What is a database?

A : A programming language used to manipulate data

B : A set of tables used for data storage

C : A collection of data organized in a structured manner

D : A collection of files stored on a computer

Answer: C

Question 3

What is the purpose of a transaction in a database?

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

Question 4

When mapping the physical model, why is it important to consider data types?

A : Data types determine the available storage space for each attribute

B : Data types affect the efficiency of data retrieval operations

C : Data types determine the order of execution for database operations

D : Data types determine the relationships between tables

Answer: A

Question 5

What is the purpose of the COMMIT statement in SQL?

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

Page: 1 / 71

Total 352 Questions | Updated On: Nov 25, 2025

Add To Cart