Free Oracle 1Z0-006 Exam Questions

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

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Total 412 Questions | Updated On: Jul 25, 2026

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Question 1

Examine the structure of the EMPLOYEE table:Which constraint will ensure that the salary inserted or updated for any employee is always between $35000 and $80000?

A : CHECK constraint

B : foreign key constraint

C : NOT NULL constraint

D : primary key constraint

Answer: A

Question 2

The salary of a new employee must be below the average salary of existing employees in a department.What does this business rule represent?

A : a constraint applied to a process

B : an exception applied to an entity

C : an exception applied to a relationship

D : a referential integrity constraint applied to an attribute

Answer: A

Question 3

What is the primary step in creating a physical model?

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

Question 4

Examine the structure of the EMPLOYEE table:Which constraint will ensure that the salary inserted or updated for any employee is always between $35000 and $80000?

A : CHECK constraint

B : foreign key constraint

C : NOT NULL constraint

D : primary key constraint

Answer: A

Question 5

In a physical model, what is the purpose of denormalization?

A : To optimize the database for efficient querying

B : To reduce data redundancy and improve data integrity

C : To establish relationships between tables

D : To define the table structures and attributes

Answer: A

Page: 1 / 83

Total 412 Questions | Updated On: Jul 25, 2026

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