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AWS Certified DevOps Engineer - Professional DOP-C02 — Question 85

Topic 1 · Question 85 of 431

Topic 1 · Question 85

An application runs on Amazon EC2 instances behind an Application Load Balancer (ALB). A DevOps engineer is using AWS CodeDeploy to release a new version. The deployment fails during the AllowTraffic lifecycle event, but a cause for the failure is not indicated in the deployment logs. What would cause this?