Answer: Decouple components

The correct answer is **Decouple components** because microservices architecture is fundamentally based on the principle of decoupling components. **Explanation:** - **Decouple components** means designing systems where individual components operate independently and communicate through well-defined interfaces - This aligns perfectly with microservices architecture where each service is: - Independently deployable - Loosely coupled - Focused on a single business capability - Communicates via APIs - The other options are also AWS Cloud design principles but don't specifically support microservices: - **Think parallel**: Focuses on parallel processing and distributed computing - **Implement elasticity**: Focuses on scaling resources up and down based on demand - **Stop guessing capacity**: Focuses on right-sizing resources and avoiding over-provisioning Microservices architecture inherently requires decoupled components to achieve the benefits of independent development, deployment, and scaling.

Author: Ritesh Yadav