Amazon
DOP-C02 · Question #100
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
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Submitted by anna_se· Mar 6, 2026SDLC Automation
Question
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?
Options
- AThe appspec.yml file contains an invalid script that runs in the AllowTraffic lifecycle hook.
- BThe user who initiated the deployment does not have the necessary permissions to interact with the
- CThe health checks specified for the ALB target group are misconfigured.
- DThe CodeDeploy agent was not installed in the EC2 instances that are part of the ALB target group.
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Topics
#CodeDeploy#ALB health checks#deployment failures#AllowTraffic hook