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: Sep 17, 2026

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Question 1

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 2

Which SQL statement is used to create a new table?

A : UPDATE

B : INSERT INTO

C : DELETE FROM

D : CREATE TABLE

Answer: D

Question 3

Which Entity Relationship Diagram (ERD) attribute will become the primary key of a table?

A : composite key

B : parent/child relationship

C : foreign key

D : not null constraint

E : unique identifier

F : check constraint

Answer: E

Question 4

Which Entity Relationship Diagram (ERD) attribute will become the primary key of a table?

A : composite key

B : parent/child relationship

C : foreign key

D : not null constraint

E : unique identifier

F : check constraint

Answer: E

Question 5

What is the purpose of denormalization in a physical database model?

A : To simplify the database structure and reduce maintenance efforts

B : To eliminate redundancy and ensure data consistency

C : To optimize query performance and improve data retrieval speed

D : To define referential integrity constraints and enforce data integrity

Answer: C

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Total 412 Questions | Updated On: Sep 17, 2026

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