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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 140 discussion

Exam question from Amazon's AWS Certified DevOps Engineer - Professional DOP-C02
Question #: 140
Topic #: 1
[All AWS Certified DevOps Engineer - Professional DOP-C02 Questions]

A company has an application that runs on Amazon EC2 instances. The company uses an AWS CodePipeline pipeline to deploy the application into multiple AWS Regions. The pipeline is configured with a stage for each Region. Each stage contains an AWS CloudFormation action for each Region.

When the pipeline deploys the application to a Region, the company wants to confirm that the application is in a healthy state before the pipeline moves on to the next Region. Amazon Route 53 record sets are configured for the application in each Region. A DevOps engineer creates a Route 53 health check that is based on an Amazon CloudWatch alarm for each Region where the application is deployed.

What should the DevOps engineer do next to meet the requirements?

  • A. Create an AWS Step Functions workflow to check the state of the CloudWatch alarm. Configure the Step Functions workflow to exit with an error if the alarm is in the ALARM state. Create a new stage in the pipeline between each Region deployment stage. In each new stage, include an action to invoke the Step Functions workflow.
  • B. Configure an AWS CodeDeploy application to deploy a CloudFormation template with automatic rollback. Configure the CloudWatch alarm as the instance health check for the CodeDeploy application. Remove the CloudFormation actions from the pipeline. Create a CodeDeploy action in the pipeline stage for each Region.
  • C. Create a new pipeline stage for each Region where the application is deployed. Configure a CloudWatch alarm action for the new stage to check the state of the CloudWatch alarm and to exit with an error if the alarm is in the ALARM state
  • D. Configure the CloudWatch agent on the EC2 instances to report the application status to the Route 53 health check. Create a new pipeline stage for each Region where the application is deployed. Configure a CloudWatch alarm action to exit with an error if the CloudWatch alarm is in the ALARM state.
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Suggested Answer: A 🗳️
by TheAWSRhino at Nov. 26, 2023, 7:14 p.m.
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heff_bezos
7 months, 1 week ago
Selected Answer: A
There are no such things as cloudwatch alarm actions. The only things alarms can do is send notifications to an SNS topic. You can perform actions by using EventBridge (CloudWatch Log events) or Step Functions.
upvoted 2 times
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zijo
9 months, 4 weeks ago
Selected Answer: D
D seems to be simple solution for me The CloudWatch agent on EC2 instances can be configured to report the application status, and this information can then be used by Route 53 health checks. Create Route 53 health checks that are based on the CloudWatch alarms. When you create a health check in Route 53, you can specify that the health check should be based on the state of a CloudWatch alarm. Route 53 health checks can be configured to treat the CloudWatch alarm state as Healthy or Unhealthy.
upvoted 1 times
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govindrk
1 year, 2 months ago
D is correct - https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/monitoring-cloudwatch.html
upvoted 1 times
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thanhnv142
1 year, 2 months ago
A is correct: <confirm that the application is in a healthy state before the pipeline moves on to the next Region.> means we need a new stage B and C: no mention of creating a new stage D: irrelevant
upvoted 3 times
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a54b16f
1 year, 3 months ago
Selected Answer: A
Exact scenario for Step usage: different routing options based on choices
upvoted 4 times
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zolthar_z
1 year, 5 months ago
Selected Answer: A
A: https://dev.to/aws-builders/dynamic-build-orchestration-using-codepipeline-codebuild-and-step-functions-2kpa
upvoted 4 times
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zain1258
1 year, 5 months ago
Selected Answer: A
A is correct answer
upvoted 3 times
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TheAWSRhino
1 year, 5 months ago
Selected Answer: A
A - 'If the state machine execution reaches a terminal status of FAILED, TIMED_OUT, or ABORTED, the action execution fails.' https://docs.aws.amazon.com/codepipeline/latest/userguide/action-reference-StepFunctions.html Can't be D because you can't update a Route53 healhcheck via the Cloudwatch agent
upvoted 3 times
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