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Amazon DOP-C02 Exam Syllabus Topics:

Section	Weight	Objectives
Monitoring and Logging	12%	- Design and implement alerting and incident management 1. Design runbook automation 2. Implement automated incident response 3. Create alarm notification strategies - Design and implement monitoring and observability strategies 1. Implement distributed tracing (AWS X-Ray) 2. Design custom metrics and alarms (Amazon CloudWatch) 3. Implement log aggregation and analysis
Incident and Event Response	18%	- Design and implement chaos engineering practices 1. Design resilience testing strategies 2. Analyze system behavior under failure conditions 3. Implement fault injection experiments (AWS Fault Injection Simulator) - Design and implement event and incident management 1. Implement automated response playbooks 2. Design event aggregation and correlation 3. Implement automated incident detection
High Availability and Disaster Recovery	16%	- Design and implement disaster recovery strategies 1. Implement backup and restore mechanisms 2. Implement multi-region active-active architectures 3. Design RTO and RPO based DR solutions 4. Implement pilot light and warm standby architectures - Implement data backup and restore strategies 1. Implement validation testing for backups 2. Design point-in-time recovery solutions 3. Implement cross-region replication - Design and implement high availability and scalability 1. Design multi-AZ and multi-region architectures 2. Implement auto scaling strategies 3. Implement load balancing and traffic management
Configuration Management and Infrastructure as Code	22%	- Implement compliance and configuration monitoring 1. Implement AWS CloudTrail for auditing 2. Design remediation automation 3. Use AWS Config for compliance monitoring - Design and implement data management strategies 1. Design backup and recovery solutions 2. Implement database migration strategies 3. Implement data lifecycle management - Design and implement configuration management 1. Implement parameter management (AWS Parameter Store, Secrets Manager) 2. Implement AWS Systems Manager for configuration management 3. Design patch management strategies - Design and implement infrastructure as code 1. Develop IaC templates (AWS CloudFormation, Terraform) 2. Implement modular and reusable infrastructure components 3. Design for scalability and repeatability
Policies and Standards Automation	10%	- Design and implement governance strategies 1. Implement approval workflows and automation 2. Implement tagging policies and resource grouping 3. Design cost optimization through policies - Design and implement preventive and detective controls 1. Implement AWS Organizations and SCPs 2. Implement drift detection and remediation 3. Design and implement security baselines
SDLC Automation	22%	- Design and implement source code management strategies 1. Determine branching strategies 2. Implement repository configurations and hooks 3. Design code review and approval processes - Design build and test environments 1. Implement build environments (isolated, reproducible) 2. Design test automation frameworks 3. Integrate security scanning and compliance checks - Design and implement CI/CD pipelines 1. Implement deployment strategies (blue-green, canary, rolling) 2. Determine appropriate CI/CD pipeline architecture 3. Develop CI/CD pipelines considering testing and security requirements 4. Design failure handling strategies

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Amazon AWS Certified DevOps Engineer - Professional Sample Questions (Q335-Q340):

NEW QUESTION # 335
A DevOps engineer maintains a web application that is deployed on an Amazon Elastic Container Service (Amazon ECS) service behind an Application Load Balancer (ALB).
Recent updates to the service caused downtime for the application because of issues with the application code. The DevOps engineer needs to design a solution to test updates on a small amount of traffic first before deploying to the rest of the service.
Which solution will meet these requirements?

A. Update the ECS service to use AWS CodeDeploy as the deployment controller. Create a second target group for the ALB. Create a CodeDeploy application and deployment group for the application. Use CodeDeploy to deploy updates by using the CodeDeployDefault.ECSCanary10Percent15Minutes deployment configuration.
B. Create a new AWS CodeBuild project that uses AWS Lambda compute and that includes an IAM role that has permissions to update the ECS task definition. Update the project buildspec file to call the Amazon ECS RegisterTaskDefinition API for deployments. Configure the ECS service to use the rolling update deployment type.
C. Create a new pipeline in AWS CodePipeline. Connect the pipeline to an AWS CodeConnections compatible Git repository. Configure the pipeline with an ECRBuildAndPublish action and an Amazon ECS standard deployment action. Configure the ECS service to use the rolling update deployment type.
D. Create a new AWS CodeBuild project. Connect the project to an AWS CodeConnections compatible Git repository. Create a buildspec.yml file in the Git repository that contains commands to call the Amazon ECS UpdateService API. Set a slow start duration of 2 minutes on the ALB target group.

Answer: A

Explanation:
The key requirement is to shift a small percentage of traffic to a new version first to validate changes before rolling out to the entire ECS service, thereby reducing downtime and deployment risk. For ECS services behind an Application Load Balancer, the AWS-recommended and most reliable approach is to use AWS CodeDeploy with blue/green or canary deployments.
Option B directly addresses this requirement. By configuring the ECS service to use CodeDeploy as the deployment controller, CodeDeploy can manage traffic shifting between two ALB target groups: one for the current (stable) version and one for the new version. The CodeDeployDefault.ECSCanary10Percent15Minutes deployment configuration initially routes 10% of production traffic to the new task set, monitors the deployment for issues, and then shifts the remaining traffic after the defined interval. This enables early detection of application errors while limiting user impact.
Option A and C rely on rolling updates, which replace tasks incrementally but do not provide precise traffic control or automated rollback based on health checks. Option D's slow start setting only affects how quickly targets receive traffic after registration and does not implement true canary testing.
Therefore, using AWS CodeDeploy with ECS canary deployments is the most robust, AWS-supported solution to test changes safely before full rollout.

NEW QUESTION # 336
A company uses an organization in AWS Organizations to manage multiple AWS accounts in multiple OUs.
The company is planning to implement a comprehensive account management solution and wants to ensure consistent baseline configurations.
A DevOps engineer is developing a solution to automatically deploy AWS CloudFormation templates to new AWS accounts. The specific CloudFormation template that the solution deploys must vary based on which organizational unit (OU) each new account is placed in.
Which solution will meet these requirements with the LEAST operational overhead?

A. Enable AWS Control Tower. Build a pipeline in AWS CodePipeline to deploy the CloudFormation deployment from a centralized account. Create a GitHub repository to store the entire configuration package, including the CloudFormation templates and a manifest file that maps each CloudFormation template to its corresponding OU. After the code is updated in GitHub, initiate the pipeline and deploy the CloudFormation templates to the new AWS accounts.
B. Store the CloudFormation templates in an Amazon S3 bucket by using a separate prefix for each AWS account. Create an AWS Lambda function that deploys a specific CloudFormation template to each new AWS account based on the prefix path that indicates where each template is located in the S3 bucket.
C. Store CloudFormation templates in an Amazon S3 bucket. Create an AWS Lambda function that deploys a specific CloudFormation template to the new AWS accounts based on the OU each new account is in. Create an Amazon EventBridge rule that matches " eventName " : " CreateAccountResult
" and " state " : " SUCCEEDED. " Set the Lambda function as the target of the EventBridge rule.
D. Enable AWS Control Tower. Use Customizations for AWS Control Tower (CfCT) to deploy each CloudFormation template from a centralized account. Create a GitHub repository to store the entire configuration package, including the CloudFormation templates and a manifest file that maps each CloudFormation template to its corresponding OU.

Answer: D

Explanation:
The requirement is to automatically apply different baseline CloudFormation templates based on OU placement when new AWS accounts are created, while keeping operational overhead as low as possible.
Because the company is already using AWS Organizations and is planning a comprehensive account management strategy, the most AWS-native and efficient solution is AWS Control Tower with Customizations for AWS Control Tower (CfCT) .
CfCT is specifically designed to extend Control Tower's baseline by allowing administrators to deploy OU- scoped CloudFormation templates automatically. The solution uses a manifest file to map CloudFormation templates to specific OUs, ensuring that each new account receives the correct baseline configuration immediately after provisioning. Templates and configuration are stored in a version-controlled Git repository, providing auditability, change tracking, and rollback capabilities.
Option B adds unnecessary operational complexity by introducing a custom CodePipeline that must be manually triggered and maintained. This duplicates functionality that CfCT already provides natively. Options C and D rely on custom Lambda logic and EventBridge rules, which increase maintenance burden, reduce transparency, and lack built-in OU-aware governance features.
AWS documentation explicitly recommends Customizations for AWS Control Tower for OU-based, scalable, and automated baseline deployments. Therefore, Option A delivers the required functionality with the least operational overhead and aligns with AWS best practices for multi-account governance.

NEW QUESTION # 337
A company is implementing AWS CodePipeline to automate its testing process The company wants to be notified when the execution state fails and used the following custom event pattern in Amazon EventBridge:

Which type of events will match this event pattern?

A. Approval actions across all the pipelines
B. All rejected or failed approval actions across all the pipelines
C. All the events across all pipelines
D. Failed deploy and build actions across all the pipelines

Answer: B

Explanation:
Action-level states in events
Action state Description
STARTED The action is currently running.
SUCCEEDED The action was completed successfully.
FAILED For Approval actions, the FAILED state means the action was either rejected by the reviewer or failed due to an incorrect action configuration.
CANCELED The action was canceled because the pipeline structure was updated.

NEW QUESTION # 338
A DevOps engineer is working on a project that is hosted on Amazon Linux and has failed a security review.
The DevOps manager has been asked to review the company buildspec. yaml die for an AWS CodeBuild project and provide recommendations. The buildspec. yaml file is configured as follows:

What changes should be recommended to comply with AWS security best practices? (Select THREE.)

A. Update the CodeBuild project role with the necessary permissions and then remove the AWS credentials from the environment variable.
B. Add a post-build command to remove the temporary files from the container before termination to ensure they cannot be seen by other CodeBuild users.
C. Move the environment variables to the 'db.-deploy-bucket 'Amazon S3 bucket, add a prebuild stage to download then export the variables.
D. Store the db_password as a SecureString value in AWS Systems Manager Parameter Store and then remove the db_password from the environment variables.
E. Use AWS Systems Manager run command versus sec and ssh commands directly to the instance.

Answer: A,D,E

Explanation:
Explanation
B: Update the CodeBuild project role with the necessary permissions and then remove the AWS credentials from the environment variable. C. Store the DB_PASSWORD as a SecureString value in AWS Systems Manager Parameter Store and then remove the DB_PASSWORD from the environment variables. E. Use AWS Systems Manager run command versus scp and ssh commands directly to the instance.

NEW QUESTION # 339
A company uses AWS Systems Manager to manage a fleet of Amazon Linux EC2 instances that have SSM Agent installed. All EC2 instances are configured to use Instance Metadata Service Version 2 (IMDSv2) and are running in the same AWS account and AWS Region. Company policy requires developers to use only Amazon Linux.
The company wants to ensure that all new EC2 instances are automatically managed by Systems Manager after creation.
Which solution will meet these requirements with the MOST operational efficiency?

A. Configure Systems Manager Patch Manager. Create a patch baseline that automatically installs SSM Agent on all new EC2 instances. Create a patch group for all EC2 instances. Attach the patch baseline to the patch group. Create a maintenance window and maintenance window task to start installing SSM Agent daily.
B. Create an IAM role that has a trust policy that allows Systems Manager to assume the role. Attach the AmazonSSMManagedEC2InstanceDefaultPolicy policy to the role. Configure the default-ec2-instance- management-role SSM service setting to use the role.
C. Create an EC2 instance role that has a trust policy that allows Amazon EC2 to assume the role. Attach the AmazonSSMManagedInstanceCore policy to the role. Ensure that AWS Config is set up. Use the ec2-instance-profile-attached managed AWS Config rule to validate if an EC2 instance has the role attached. Configure the rule to run on EC2 configuration changes. Configure automatic remediation for the rule to run the AWS-SetupManagedRoleOnEc2Instance SSM document to attach the role to the EC2 instance.
D. Ensure that AWS Config is set up. Create an AWS Config rule that validates if an EC2 instance has SSM Agent installed. Configure the rule to run on EC2 configuration changes. Configure automatic remediation for the rule to run the AWS-InstallSSMAgent SSM document to install SSM Agent.

Answer: B

Explanation:
The most operationally efficient answer is to use Systems Manager Default Host Management Configuration.
This feature is designed specifically to make EC2 instances become Systems Manager managed instances automatically without manually attaching an IAM instance profile to every instance. AWS states that Default Host Management Configuration manages EC2 instances automatically as managed instances and uses a default IAM role for the account and Region. It also requires IMDSv2, which the scenario already satisfies.
Option A correctly creates the Systems Manager trusted role, attaches
AmazonSSMManagedEC2InstanceDefaultPolicy, and configures the SSM service setting. Options B and D add AWS Config remediation complexity, and C uses Patch Manager incorrectly because SSM Agent is already installed and the requirement is automatic Systems Manager management.

NEW QUESTION # 340
......

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