An application runs on Amazon EC2 instances behind an Application Load Balancer (ALB).

Amazon Web Services DOP-C02 Question Answer

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 AlIowTraffic lifecycle event, but a cause for the failure is not indicated in the deployment logs.

What would cause this?

The appspec. yml file contains an invalid script that runs in the AllowTraffic lifecycle hook.

The user who initiated the deployment does not have the necessary permissions to interact with the ALB.

The health checks specified for the ALB target group are misconfigured.

The CodeDeploy agent was not installed in the EC2 instances that are pad of the ALB target group.

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Amazon Web Services DOP-C02 Summary

Vendor: Amazon Web Services
Product: DOP-C02
Update on: Aug 1, 2025
Questions: 322

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An application runs on Amazon EC2 instances behind an Application Load Balancer (ALB).

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Amazon Web Services DOP-C02 Summary

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