Practice 1Z0-006 Exam Online

Question 1

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 2

What is the purpose of a transaction in a database?

A :

To execute queries and retrieve data from a database

B :

To define the structure and organization of a database

C :

To ensure the atomicity, consistency, isolation, and durability of database operations

D :

To enforce data integrity and security in a database

Answer: C

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

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

Question 5

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

Name:	Oracle Database Foundations
Exam Code:	1Z0-006
Certification:	Oracle Database Certified Foundations Associate
Vendor:	Oracle
Total Questions:	352
Last Updated:	Apr 24, 2024

Oracle 1Z0-006