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: Mar 27, 2025

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Question 1

Which keyword is used to filter results based on a specific condition in a SELECT statement?

A : ORDER BY

B : HAVING

C : GROUP BY

D : WHERE

Answer: D

Question 2

What is a primary key in a database?

A : A unique identifier for a specific record in a table

B : A way to encrypt sensitive data in a database

C : A data type used to store numerical values

D : A secondary index used for optimizing query performance

Answer: A

Question 3

Which of the following is a valid cardinality notation for a one-to-many relationship in a physical data model?

A : (1, N)

B : (0, 1)

C : (1, 1)

D : (N, M)

Answer: A

Question 4

What is the difference between a logical model and a physical model in database design?

A : A logical model is created by developers, while a physical model is created by database administrators.

B : A logical model focuses on performance optimization, while a physical model focuses on data integrity.

C : A logical model represents the database structure in terms of entities and relationships, while a physical model represents the actual implementation of the database.

D : A logical model is used for small-scale databases, while a physical model is used for large-scale databases.

Answer: C

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

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Total 352 Questions | Updated On: Mar 27, 2025

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