CPN CPE III Practice Questions - CPN Computer Professional Examination Level III Exam - CPN CPE III Practice Questions - CPN Computer Professional Examination Level III Exam

Question 1

In software design, what is the primary difference between the Factory Method and the Abstract Factory design patterns?

Factory Method uses inheritance to let subclasses decide which class to instantiate, while Abstract Factory uses object composition to produce families of related objects. Factory Method produces families of related objects, while Abstract Factory is restricted to creating a single product type. Factory Method relies on runtime configuration using reflection, while Abstract Factory is bound at compile time. Factory Method is a structural design pattern, whereas Abstract Factory is classified as a creational pattern.

Correct Answer:

Factory Method uses inheritance to let subclasses decide which class to instantiate, while Abstract Factory uses object composition to produce families of related objects.

Question 2

Which structural design pattern is best suited to dynamic adding of responsibilities to an individual object without affecting other objects of the same class?

Adapter Decorator Facade Proxy

Correct Answer:

Decorator

Question 3

Under the SOLID principles of object-oriented design, which principle states that software entities should be open for extension but closed for modification?

Single Responsibility Principle (SRP) Open/Closed Principle (OCP) Liskov Substitution Principle (LSP) Dependency Inversion Principle (DIP)

Correct Answer:

Open/Closed Principle (OCP)

Question 4

In a microservices architecture, which pattern is designed to prevent a cascading failure across services by stopping operations that are highly likely to fail?

API Gateway Saga Pattern Circuit Breaker Database-per-service

Correct Answer:

Circuit Breaker

Question 5

What is the primary objective of requirements validation in software engineering?

To ensure that the requirements specify the correct system that meets the user's actual needs. To verify that the code implements the requirements specification correctly. To estimate the development schedule and resource requirements. To write concrete test cases for system integration testing.

Correct Answer:

To ensure that the requirements specify the correct system that meets the user's actual needs.

Question 1

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Prepare with the CPN CPE III Practice Questions - CPN Computer Professional Examination Level III Exam practice quiz. This question bank includes 100 questions covering design, algorithm, software, primary, and represents. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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CPN CPE III Practice Questions - CPN Computer Professional Examination Level III Exam

This practice set contains 100 questions from the matching question bank and focuses on design, algorithm, software, primary, and represents. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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CPN CPE III Practice Questions - CPN Computer Professional Examination Level III Exam

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