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Exam AWS Certified DevOps Engineer - Professional DOP-C02 All Questions

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Exam AWS Certified DevOps Engineer - Professional DOP-C02 topic 1 question 183 discussion

Exam question from Amazon's AWS Certified DevOps Engineer - Professional DOP-C02
Question #: 183
Topic #: 1
[All AWS Certified DevOps Engineer - Professional DOP-C02 Questions]

A DevOps engineer is setting up a container-based architecture. The engineer has decided to use AWS CloudFormation to automatically provision an Amazon ECS cluster and an Amazon EC2 Auto Scaling group to launch the EC2 container instances. After successfully creating the CloudFormation stack, the engineer noticed that, even though the ECS cluster and the EC2 instances were created successfully and the stack finished the creation, the EC2 instances were associating with a different cluster.

How should the DevOps engineer update the CloudFormation template to resolve this issue?

  • A. Reference the EC2 instances in the AWS::ECS::Cluster resource and reference the ECS cluster in the AWS::ECS::Service resource.
  • B. Reference the ECS cluster in the AWS::AutoScaling::LaunchConfiguration resource of the UserData property.
  • C. Reference the ECS cluster in the AWS::EC2::Instance resource of the UserData property.
  • D. Reference the ECS cluster in the AWS::CloudFormation::CustomResource resource to trigger an AWS Lambda function that registers the EC2 instances with the appropriate ECS cluster.
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Suggested Answer: B 🗳️
by PrasannaBalaji at Dec. 29, 2023, 3:26 p.m.
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Aquaman
5 months, 1 week ago
Selected Answer: B
B is correct according to this block "UserData": { "Fn::Base64": { "Fn::Sub": "#!/bin/bash -xe\n echo ECS_CLUSTER=${ECSCluster} >> /etc/ecs/ecs.config\n yum install -y aws-cfn-bootstrap\n /opt/aws/bin/cfn-init -v --stack ${AWS::StackId} --resource ContainerInstances --configsets full_install --region ${AWS::Region} &\n" } }, in https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ecs-cluster.html
upvoted 1 times
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jamesf
9 months ago
Selected Answer: B
Link the Auto Scaling Group with ECS Cluster
upvoted 1 times
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seetpt
12 months ago
Selected Answer: B
B for me
upvoted 1 times
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dkp
1 year ago
Selected Answer: B
answer B
upvoted 2 times
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thanhnv142
1 year, 2 months ago
B is correct: <even though the ECS cluster and the EC2 instances were created successfully and the stack finished the creation, the EC2 instances were associating with a different cluster> means we need to link the auto scaling group to the ECS cluster A: incorrect. AWS::ECS::Cluster creates an ECS cluster. AWS::ECS::Service creates its services. However, it does not link the EC2 auto scaling group to the ECS cluster C: incorrect. AWS::EC2::Instance creates an EC2 instance D: incorrect. AWS::CloudFormation::CustomResource creates CustomResource
upvoted 3 times
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a54b16f
1 year, 3 months ago
Selected Answer: B
B, here is a sample code https://github.com/thinegan/cloudformation-project2/blob/master/infrastructure/ecs-autoscaling-appserver.yaml
upvoted 3 times
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ozansenturk
1 year, 3 months ago
Selected Answer: B
https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-autoscaling-launchconfiguration.html#aws-resource-autoscaling-launchconfiguration--examples
upvoted 3 times
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PrasannaBalaji
1 year, 4 months ago
Selected Answer: B
B is correct
upvoted 2 times
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