AWS Certified Developer Associate DVA-C02 Practice Question

Creating a new stage in Amazon API Gateway isolates a snapshot of the API configuration under its own invoke URL and optional stage variables. The team can deploy the updated build to that stage and exercise it independently of the production stage, ensuring no customer traffic is impacted. Simply redeploying to the production stage or adding test routes inside it would expose the live environment to unproven changes. Duplicating the entire API in another account is possible but unnecessarily complex and harder to keep in sync for routine feature testing.