Free Oracle 1Z0-006 Exam Questions

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

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Total 352 Questions | Updated On: Jun 25, 2025

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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 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 3

Which keyword is used to join two or more tables in a SQL statement?

A : JOIN

B : INNER JOIN

C : CROSS JOIN

D : UNION

Answer: A

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

Which of the following is NOT a consideration when determining the relationships between tables during mapping of the physical model?

A : Table naming conventions

B : Primary key constraints

C : Cardinality

D : Foreign key constraints

Answer: A

Page: 1 / 71

Total 352 Questions | Updated On: Jun 25, 2025

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