The next 311 mobile API release must roll back automatically when health degrades. Which mechanism best meets that requirement?
Select an answer to reveal the explanation.
Short Explanation
Do not wait for Twitter to be the health check. Tie the deploy to CloudWatch alarms so a sick release rolls itself back while citizens still get 311 answers.
Full Explanation
Automated rollback driven by CloudWatch (or equivalent) health alarms implements rollback mechanisms tied to objective signals—appropriate for citizen-facing 311 APIs. Social-media-only detection, pushing through total failure, and disabling metrics remove proactive recovery.