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Question 454 - SAP-C02 discussion

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A solutions architect is creating an AWS CloudFormation template from an existing manually created non-production AWS environment The CloudFormation template can be destroyed and recreated as needed The environment contains an Amazon EC2 instance The EC2 instance has an instance profile that the EC2 instance uses to assume a role in a parent account

The solutions architect recreates the role in a CloudFormation template and uses the same role name When the CloudFormation template is launched in the child account, the EC2 instance can no longer assume the role in the parent account because of insufficient permissions

What should the solutions architect do to resolve this issue?

A.
In the parent account edit the trust policy for the role that the EC2 instance needs to assume Ensure that the target role ARN in the existing statement that allows the sts AssumeRole action is correct Save the trust policy
Answers
A.
In the parent account edit the trust policy for the role that the EC2 instance needs to assume Ensure that the target role ARN in the existing statement that allows the sts AssumeRole action is correct Save the trust policy
B.
In the parent account edit the trust policy for the role that the EC2 instance needs to assume Add a statement that allows the sts AssumeRole action for the root principal of the child account Save the trust policy
Answers
B.
In the parent account edit the trust policy for the role that the EC2 instance needs to assume Add a statement that allows the sts AssumeRole action for the root principal of the child account Save the trust policy
C.
Update the CloudFormation stack again Specify only the CAPABILITY_NAMED_IAM capability
Answers
C.
Update the CloudFormation stack again Specify only the CAPABILITY_NAMED_IAM capability
D.
Update the CloudFormation stack again Specify the CAPABIUTYJAM capability and the CAPABILITY_NAMEDJAM capability
Answers
D.
Update the CloudFormation stack again Specify the CAPABIUTYJAM capability and the CAPABILITY_NAMEDJAM capability
Suggested answer: A

Explanation:

Edit the Trust Policy:

Go to the IAM console in the parent account and locate the role that the EC2 instance needs to assume.

Edit the trust policy of the role to ensure that it correctly allows the sts action for the role ARN in the child account.

Update the Role ARN:

Verify that the target role ARN specified in the trust policy matches the role ARN created by the CloudFormation stack in the child account.

If necessary, update the ARN to reflect the correct role in the child account.

Save and Test:

Save the updated trust policy and ensure there are no syntax errors.

Test the setup by attempting to assume the role from the EC2 instance in the child account. Verify that the instance can successfully assume the role and perform the required actions.

This ensures that the EC2 instance in the child account can assume the role in the parent account, resolving the permission issue.

Reference

AWS IAM Documentation on Trust Policies51.

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asked 16/09/2024
Mashudu Abraham
34 questions
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