A developer is using AWS CodeDeploy to launch an application onto Amazon EC2 instances. The application deployment fails during testing. The developer notices an IAM_ROLE_PERMISSIONS error code in Ama

Question

Options

• AEnsure that the deployment group is using the correct role name for the CodeDeploy service role.
• BAttach the AWSCodeDeployRoleECS policy to the CodeDeploy service role.
• CAttach the AWSCodeDeployRole policy to the CodeDeploy service role.
• DEnsure the CodeDeploy agent is installed and running on all instances in the deployment group.

• A
  2% (1)
• B
  7% (3)
• C
  87% (39)
• D
  4% (2)

Explanation

Attaching the AWSCodeDeployRole policy to the CodeDeploy service role directly resolves IAM_ROLE_PERMISSIONS errors, because this managed policy grants CodeDeploy the exact EC2 permissions it needs (describing instances, reading tags, calling Auto Scaling, etc.) to execute deployments successfully.

• A is wrong because the error is about missing permissions, not an incorrect role name - the role exists but lacks the right policies attached to it.
• B is wrong because AWSCodeDeployRoleECS is for ECS (container) deployments; the scenario explicitly uses EC2 instances, which require the AWSCodeDeployRole policy instead.
• D is wrong because a missing or stopped CodeDeploy agent produces a different error (typically HEALTH_CONSTRAINTS or agent-specific failures), not IAM_ROLE_PERMISSIONS.

Memory tip: The error code is your clue - IAM_ROLE_PERMISSIONS always points to a policy attachment problem, not a configuration or agent problem. Match the policy to the compute type: AWSCodeDeployRole for EC2, AWSCodeDeployRoleECS for ECS.

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