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 13, 2026

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Question 1

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

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 2

Examine this diagram:What type of relationship is pictured?

A : one and only one

B : one or more

C : zero or more

D : zero or one

Answer: A

Question 3

In your database, the EMPLOYEE table has a unique EMPLOYEE ID column, which is assigned by the system and generated sequentially.What do you call this type of unique identifier?

A : barred primary key

B : artificial identifier

C : candidate unique identifier

D : a natural identifier

E : foreign key identifier

Answer: B

Question 4

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 5

Which two tasks can be performed by using Oracle SQL statements?

A : starting up a database instance

B : changing the password for an existing database user

C : executing operating system (OS) commands in a session

D : querying data from tables across databases

E : connecting to a database instance

Answer: B,D

Page: 1 / 83

Total 412 Questions | Updated On: Jul 13, 2026

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