During a blue/green CodeDeploy cutover, target 5xx rates from the load balancer are not rising, but application log errors are. Which signal should drive automated rollback?
Multiple choice — select one answer
Answer choices
Architectural breakdown & explanation
Application errors may appear only in logs; metric filters surface them to CodeDeploy alarms.
Correct answer(s): d. Deployment group linked to a log-derived error metric alarm
Exam domain: Domain 4: Monitoring, Logging, and Incident Response (18% weight on the official guide).
Official documentation & study links
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