SAP-C02 Q287 · CI/CD

Question

A solutions architect must update an application environment within AWS Elastic Beanstalk using a blue/green deployment methodology. The solutions architect creates an environment that is identical to the existing application environment and deploys the application to the new environment. What should be done next to complete the update?

Accepted Answer

**Option B: Select the Swap Environment URLs option** is correct because this is the **native Elastic Beanstalk mechanism** specifically designed for blue/green deployments.

**Step-by-step reasoning:**

1. **The scenario**: The architect has already created a clone of the existing environment (blue) and deployed the new application version to it (green). Both environments are running simultaneously.

2. **What 'Swap Environment URLs' does**: This Elastic Beanstalk feature performs a **CNAME swap** between two environments. Each Elastic Beanstalk environment has a CNAME (e.g., `myapp-blue.us-east-1.elasticbeanstalk.com`). When you swap, the CNAMEs are exchanged atomically — the green environment gets the blue environment's URL and vice versa.

3. **Why this is the right next step**: It's a

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