DVA-C02 Deployment Practice Question

⚠ Common exam trap

The trap is that candidates often assume immutable deployments cause the least downtime. Immutable deployments provide zero downtime by launching a new set of instances and swapping the CNAME atomically, but they require creating a full new environment and use more resources. Rolling with additional batch also provides zero downtime by adding extra capacity before removing old instances, ensuring full capacity is maintained throughout the deployment. The key distinction is that rolling with additional batch avoids downtime without requiring a full new environment, while all-at-once and rolling deployments can temporarily reduce capacity or cause interruption.