Free Practice Oracle 1Z0-006 Exam Questions 2025

Stay ahead with 100% Free Oracle Database Foundations 1Z0-006 Dumps Practice Questions

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Total 352 Questions | Updated On: Dec 18, 2023

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Question 1

What is a primary key?

A : An attribute that can have multiple values

B : A reserved word in SQL

C : A unique identifier for a data entity

D : A foreign key in a related table

Answer: C

Question 2

What is a foreign key in a relational database?

A : A primary key from another table

B : A key used to establish relationships between tables

C : A key that can have duplicate values

D : A constraint that ensures data integrity

Answer: B

Question 3

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 4

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

Question 5

What is the purpose of creating constraints in the physical model?

A : To define relationships between tables

B : To optimize database performance

C : To enforce data integrity constraints

D : To specify data types for columns

Answer: C

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Total 352 Questions | Updated On: Dec 18, 2023

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