Question 180
During an AWS global infrastructure design review, the decisive constraint is: A failed CloudFormation deployment must notify operations and trigger controlled recovery steps. Which technical choice resolves the stated issue?
Explanation
Correct Answer
Match CloudFormation stack state-change events with EventBridge and invoke a runbook. Event-driven remediation responds to deployment failure states without continuous polling.
Incorrect Answers
Configure ECS service health-based replacement and load balancer health checks would address a different requirement: An ECS service's health check repeatedly fails and operators currently restart tasks manually. ECS services replace unhealthy tasks to restore desired capacity.
For the separate situation A regional failover requires two operators to approve any data-writer promotion, Orchestrate the failover with Step Functions approval steps and audited transitions could be useful. Human approval gates prevent automated promotion from violating recovery governance.
Define CloudWatch alarms on application errors and saturation signals with escalations solves the related scenario A cloud application must alert on elevated end-user error rate before its database exhausts connections; leading health and capacity signals trigger response before failure is total.