Exam AWS Certified Cloud Practitioner CLF-C02 topic 1 question 25 discussion

The Correct answer is D. Dependencies such as queuing systems, streaming systems, workflows, and load balancers are loosely coupled. Loose coupling helps isolate behavior of a component from other components that depend on it, increasing resiliency and agility. https://docs.aws.amazon.com/wellarchitected/latest/framework/rel_prevent_interaction_failure_loosely_coupled_system.html

breaking a monolithic application into microservices is an example of implementing loose coupling between application components, allowing better scalability and easier maintenance.

Implementing Loosely coupled components - Option D

D. Implement loosely coupled dependencies.

The Correct answer is D. Dependencies such as queuing systems, streaming systems, workflows, and load balancers are loosely coupled. Loose coupling helps isolate behavior of a component from other components that depend on it, increasing resiliency and agility. https://docs.aws.amazon.com/wellarchitected/latest/framework/rel_prevent_interaction_failure_loosely_coupled_system.html

The Correct answer is D. Integrate functional testing as part of AWS deployment (A): While this is a good practice for ensuring application quality, it's not the specific focus of dividing the application into microservices. Use automation to deploy changes (B): This is also a good practice, but it's applicable to various scenarios and not directly tied to microservices architecture. Deploy the application to multiple locations (C): While microservices can be deployed across multiple locations, this isn't the defining characteristic of decomposing a monolithic application into microservices. Implement loosely coupled dependencies (D): This is a core principle of microservices architecture. By breaking down the monolithic application into smaller, independent services with well-defined APIs, the company is aiming to reduce dependencies between services, making them easier to develop, deploy, and scale independently. This aligns perfectly with the goal of improving scalability and maintainability, which are key challenges with the current monolithic application.

D. Implement loosely coupled dependencies: The best practice of implementing loosely coupled dependencies aligns with the company's plan to migrate the monolithic on-premises application to AWS and divide it into microservices. Microservices architecture emphasizes the use of loosely coupled, independently deployable components that can be developed and maintained separately. Implementing loosely coupled dependencies, promotes the decoupling of services, allowing for greater agility, scalability, and ease of maintenance in a microservices architecture. The other options are not as directly related to the described scenario: Option A is related to testing practices. Option B focuses on automation in deployment. Option C refers to deploying the application to multiple locations, which may be a part of a broader strategy but is not specifically addressing the benefits of microservices architecture.

D: Loose Coupling is main advantage of moving from monolithic to microservices

D is correct answer

D looks correct

Answer D is Correct.