A company uses AWS CodeDeploy to deploy a new version of a web application to an Auto Scaling group. After the deployment, the company wants to automatically validate that the application is functioning correctly before allowing traffic to be fully shifted. They already have CloudWatch Synthetics canaries configured for the application. What is the BEST way to integrate this validation into the deployment process?

Manually run the canary after the deployment and check the results in the CloudWatch console.

Use a CodeDeploy lifecycle hook to run a script that invokes the canary and fails the deployment if the canary fails.

Use AWS CloudFormation to create a custom resource that runs the canary and returns a success signal.

Configure the CloudWatch Synthetics canary to run automatically after the deployment completes and alert on failure.

An ECS service is failing to place tasks. Where should a DevOps engineer look to find the reason for the task placement failure?

The ECS cluster's CloudWatch metrics

The container logs of the running tasks

AWSCertified DevOps Engineer - Professional

Domain 5Objective 3

Task Statement 5.3: Troubleshoot System and Application Failures. DOP-C02 Practice Questions (Page 2)

Part of the Content Domain 5: Incident and Event Response domain, which accounts for 14% of the DOP-C02 exam. AWS does not publish an official question count, but from its 180-minute exam (~70–120 total, ~10–17 in this domain), expect 3–6 from this objective — we provide 25 practice questions to prepare you well beyond it. (estimate)

25questions here

5free pages

8concepts

14%of the exam

8 Concepts in This Objective

AWS metrics and logging services
AWS service health services
Root cause analysis
Analyzing failed deployments with CI/CD and IaC
CloudWatch synthetic monitoring for deployments
Analyzing incidents with auto scaling
Analyzing incidents with Amazon ECS
Analyzing incidents with Amazon EKS

Questions 6–10

6foundation · easy
Which AWS service is used to collect and store application logs, such as those generated by an application running on an EC2 instance, for later querying and troubleshooting?
Select an answer first
7foundation · easy
Which AWS Systems Manager capability allows operational work items, such as issues detected by AWS Health or CloudWatch alarms, to be created, tracked, and resolved?
Select an answer first
8application · medium
A company uses AWS CodeDeploy to deploy a new version of a web application to an Auto Scaling group. After the deployment, the company wants to automatically validate that the application is functioning correctly before allowing traffic to be fully shifted. They already have CloudWatch Synthetics canaries configured for the application. What is the BEST way to integrate this validation into the deployment process?
Select an answer first
9foundation · easy
An ECS service is failing to place tasks. Where should a DevOps engineer look to find the reason for the task placement failure?
Select an answer first
10foundation · easy
A DevOps engineer needs to collect and analyze traces from a distributed application to identify performance bottlenecks across multiple microservices. Which AWS service is specifically designed for this purpose?
Select an answer first

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Task Statement 5.3: Troubleshoot System and Application Failures. DOP-C02 Practice Questions (Page 2)

Questions 6–10

Which AWS service is used to collect and store application logs, such as those generated by an application running on an EC2 instance, for later querying and troubleshooting?

Which AWS Systems Manager capability allows operational work items, such as issues detected by AWS Health or CloudWatch alarms, to be created, tracked, and resolved?

An ECS service is failing to place tasks. Where should a DevOps engineer look to find the reason for the task placement failure?

A DevOps engineer needs to collect and analyze traces from a distributed application to identify performance bottlenecks across multiple microservices. Which AWS service is specifically designed for this purpose?

Keep studying — Content Domain 5: Incident and Event Response