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Which of the following is an AWS Cloud architecture design principle?
A. Implement single points of failure.
B. Implement loose coupling.
C. Implement monolithic design.
D. Implement vertical scaling.
Correct Answer: B
Explanation/Reference:
Loose coupling between services can also be done through asynchronous integration. It involves one component that generates events and another that consumes them. The two components do not integrate through direct point-to-point interaction, but usually through an intermediate durable storage layer. This approach decouples the two components and introduces additional resiliency. So, for example, if a process that is reading messages from the queue fails, messages can still be added to the queue to be processed when the system recovers.
Reference: https://www.botmetric.com/blog/aws-cloud-architecture-design-principles/
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Correct Answer: B
A