Amazon Exam DOP-C02 Topic 4 Question 30 Discussion

Actual exam question for Amazon's DOP-C02 exam

Question #: 30
Topic #: 4

An IT team has built an AWS CloudFormation template so others in the company can quickly and reliably deploy and terminate an application. The template creates an Amazon EC2 instance with a user data script to install the application and an Amazon S3 bucket that the application uses to serve static webpages while it is running.

All resources should be removed when the CloudFormation stack is deleted. However, the team observes that CloudFormation reports an error during stack deletion, and the S3 bucket created by the stack is not deleted.

How can the team resolve the error in the MOST efficient manner to ensure that all resources are deleted without errors?

AAdd a DelelionPolicy attribute to the S3 bucket resource, with the value Delete forcing the bucket to be removed when the stack is deleted.

BAdd a custom resource with an AWS Lambda function with the DependsOn attribute specifying the S3 bucket, and an IAM role. Write the Lambda function to delete all objects from the bucket when RequestType is Delete.

CIdentify the resource that was not deleted. Manually empty the S3 bucket and then delete it.

DReplace the EC2 and S3 bucket resources with a single AWS OpsWorks Stacks resource. Define a custom recipe for the stack to create and delete the EC2 instance and the S3 bucket.

Show Suggested Answer

Suggested Answer: B, E

You need to understand how SCP inheritance works in AWS. The way it works for Deny policies is different that allow policies.

Allow polices are passing down to children ONLY if they don't have an allow policy.

Deny policies always pass down to children.

That's why there is always an SCP set to the Root to allow everything by default. If you limit this policy, the whole organization will be limited, not matter what other policies are saying for the other OUs. So it's not A. It's not D because it restricts the wrong OU.

by Charlene at Jul 17, 2024, 02:02 PM

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Darrel

19 days ago

Hold up, did someone say 'Delete forcing'? That's my kind of party trick! Just make sure the bucket's not hosting your company's crown jewels, eh?

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Tracie

20 days ago

OpsWorks Stacks? Isn't that a bit overkill for this simple use case? I'd stick with the CloudFormation template and the DeletionPolicy.

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Shaun

21 days ago

Manually cleaning up the bucket? That's so 2010. Let's embrace the power of CloudFormation and automate this cleanup process!

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Keshia

25 days ago

A custom Lambda function to delete the objects in the bucket is a good idea, but it adds unnecessary complexity. The DeletionPolicy seems like the way to go here.

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Ahmed

2 days ago

A) Add a DeletionPolicy attribute to the S3 bucket resource, with the value Delete forcing the bucket to be removed when the stack is deleted.

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Nidia

2 days ago

A) Add a DeletionPolicy attribute to the S3 bucket resource, with the value Delete forcing the bucket to be removed when the stack is deleted.

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2 months ago

I think option B is the best solution. Adding a custom resource with an AWS Lambda function to delete all objects from the S3 bucket when the stack is deleted seems efficient.

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