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Amazon DOP-C02 Exam Syllabus Topics:

SectionWeightObjectives
SDLC Automation22%- Implement CI/CD pipelines
  • 1. Use AWS CodePipeline, CodeBuild, CodeDeploy
  • 2. Automate build, test, and deployment stages
  • 3. Integrate version control systems
- Automate testing and validation
  • 1. Security and compliance testing
  • 2. Automate quality gates
  • 3. Unit, integration, and performance testing
- Automate software release processes
  • 1. Automate rollback procedures
  • 2. Manage artifacts and dependencies
  • 3. Implement deployment strategies
Security, Governance, and Compliance17%- Implement security controls
  • 1. Manage IAM for pipelines and environments
  • 2. Encrypt data at rest and in transit
  • 3. Secure secrets and credentials
- Enforce governance and compliance
  • 1. Implement compliance rules and audits
  • 2. Manage access and permissions at scale
  • 3. Use AWS Config and AWS Organizations
- Automate security and compliance
  • 1. Detect and remediate violations automatically
  • 2. Use AWS Security Hub and AWS Shield
  • 3. Integrate security into CI/CD pipelines
Resilient Cloud Solutions15%- Implement disaster recovery
  • 1. Backup and restore strategies
  • 2. Test and validate recovery plans
  • 3. Pilot light, warm standby, and active-active
- Ensure reliability and scalability
  • 1. Manage capacity and elasticity
  • 2. Design for fault tolerance
  • 3. Optimize performance and cost
- Design high availability architectures
  • 1. Use Route 53 for routing and failover
  • 2. Implement auto scaling and load balancing
  • 3. Multi-AZ and multi-region deployments
Monitoring and Logging15%- Automate incident response
  • 1. Automate remediation and scaling
  • 2. Implement alerting and notification workflows
  • 3. Set up event-driven actions with Amazon EventBridge
- Implement monitoring solutions
  • 1. Create dashboards and insights
  • 2. Use Amazon CloudWatch for metrics and alarms
  • 3. Monitor infrastructure, applications, and costs
- Implement logging and analysis
  • 1. Centralize logs with CloudWatch Logs
  • 2. Use AWS X-Ray for tracing
  • 3. Analyze logs for troubleshooting and security
Configuration Management and Infrastructure as Code17%- Manage infrastructure deployments
  • 1. Provision and update resources automatically
  • 2. Implement version control for configurations
  • 3. Manage multi-account and multi-region environments
- Automate configuration management
  • 1. Use AWS Systems Manager, Ansible, or Puppet
  • 2. Maintain consistent configurations
  • 3. Detect and remediate configuration drift
- Implement infrastructure as code
  • 1. Use AWS CloudFormation, Terraform, or AWS CDK
  • 2. Manage templates and stacks
  • 3. Enforce configuration standards
Incident and Event Response14%- Automate event management
  • 1. Integrate with ticketing and workflow systems
  • 2. Automate common operational tasks
  • 3. Classify and prioritize events
- Improve operational processes
  • 1. Update runbooks and playbooks
  • 2. Optimize response time and efficiency
  • 3. Implement feedback loops
- Manage incidents and outages
  • 1. Coordinate response and recovery
  • 2. Troubleshoot complex issues
  • 3. Document and learn from events

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Amazon AWS Certified DevOps Engineer - Professional Sample Questions (Q436-Q441):

NEW QUESTION # 436
A company is launching an application. The application must use only approved AWS services. The account that runs the application was created less than 1 year ago and is assigned to an AWS Organizations OU.
The company needs to create a new Organizations account structure. The account structure must have an appropriate SCP that supports the use of only services that are currently active in the AWS account.
The company will use AWS Identity and Access Management (IAM) Access Analyzer in the solution.
Which solution will meet these requirements?

Answer: D

Explanation:
To meet the requirements of creating a new Organizations account structure with an appropriate SCP that supports the use of only services that are currently active in the AWS account, the company should use the following solution:
Create an SCP that allows the services that IAM Access Analyzer identifies. IAM Access Analyzer is a service that helps identify potential resource-access risks by analyzing resource-based policies in the AWS environment. IAM Access Analyzer can also generate IAM policies based on access activity in the AWS CloudTrail logs. By using IAM Access Analyzer, the company can create an SCP that grants only the permissions that are required for the application to run, and denies all other services. This way, the company can enforce the use of only approved AWS services and reduce the risk of unauthorized access12 Create an OU for the account. Move the account into the new OU. An OU is a container for accounts within an organization that enables you to group accounts that have similar business or security requirements. By creating an OU for the account, the company can apply policies and manage settings for the account as a group. The company should move the account into the new OU to make it subject to the policies attached to the OU3 Attach the new SCP to the new OU. Detach the default FullAWSAccess SCP from the new OU. An SCP is a type of policy that specifies the maximum permissions for an organization or organizational unit (OU). By attaching the new SCP to the new OU, the company can restrict the services that are available to all accounts in that OU, including the account that runs the application. The company should also detach the default FullAWSAccess SCP from the new OU, because this policy allows all actions on all AWS services and might override or conflict with the new SCP45 The other options are not correct because they do not meet the requirements or follow best practices. Creating an SCP that denies the services that IAM Access Analyzer identifies is not a good option because it might not cover all possible services that are not approved or required for the application. A deny policy is also more difficult to maintain and update than an allow policy. Creating an SCP that allows the services that IAM Access Analyzer identifies and attaching it to the organization's root is not a good option because it might affect other accounts and OUs in the organization that have different service requirements or approvals. Creating an SCP that allows the services that IAM Access Analyzer identifies and attaching it to the management account is not a valid option because SCPs cannot be attached directly to accounts, only to OUs or roots.
References:
1: Using AWS Identity and Access Management Access Analyzer - AWS Identity and Access Management
2: Generate a policy based on access activity - AWS Identity and Access Management
3: Organizing your accounts into OUs - AWS Organizations
4: Service control policies - AWS Organizations
5: How SCPs work - AWS Organizations


NEW QUESTION # 437
The company's DevOps engineer discovered that the errors were caused by RDS connection limits being reached. The DevOps engineer also discovered that more than 90% of the API requests are GET requests that read from the DB cluster.
How should the DevOps engineer solve this problem with the LEAST development effort?

Answer: D

Explanation:
The root cause of the problem is that the RDS PostgreSQL instance is exceeding its database connection limit due to high volumes of concurrent GET requests. The most efficient and lowest-effort remediation is to reduce the number of connections that reach the database and serve as many reads as possible from a cache layer. Option B accomplishes both goals with minimal changes to the existing architecture.
First, RDS Proxy manages database connections efficiently by pooling and reusing them. This reduces connection churn and prevents the Lambda function from opening excessive concurrent connections during traffic spikes. RDS Proxy is natively integrated with RDS and requires only minor configuration changes without altering application logic.
Second, enabling API Gateway caching allows caching GET responses directly at the API layer. Because over
90% of requests are GET operations, enabling caching drastically reduces traffic hitting both Lambda and RDS, significantly improving performance and lowering connection pressure.
Option C also improves read scaling, but adding ElastiCache introduces additional infrastructure and requires modifying application code to query Redis before querying the database. This is more complex than enabling API Gateway caching. Options A and D require full database migration, which is far more labor-intensive.
Option B is the simplest, most effective, and most aligned with AWS best practices for reducing RDS connection saturation.


NEW QUESTION # 438
A company has a data ingestion application that runs across multiple AWS accounts. The accounts are in an organization in AWS Organizations. The company needs to monitor the application and consolidate access to the application. Currently the company is running the application on Amazon EC2 instances from several Auto Scaling groups. The EC2 instances have no access to the internet because the data is sensitive Engineers have deployed the necessary VPC endpoints. The EC2 instances run a custom AMI that is built specifically tor the application.
To maintain and troubleshoot the application, system administrators need the ability to log in to the EC2 instances. This access must be automated and controlled centrally. The company's security team must receive a notification whenever the instances are accessed.
Which solution will meet these requirements?

Answer: C

Explanation:
Even if AmazonSSMManagedlnstanceCore is a managed policy and not an IAM role I will go with C because this policy is to be attached to an IAM role for EC2 to access System Manager.


NEW QUESTION # 439
A company is hosting a static website from an Amazon S3 bucket. The website is available to customers at example.com. The company uses an Amazon Route 53 weighted routing policy with a TTL of 1 day. The company has decided to replace the existing static website with a dynamic web application. The dynamic web application uses an Application Load Balancer (ALB) in front of a fleet of Amazon EC2 instances.
On the day of production launch to customers, the company creates an additional Route 53 weighted DNS record entry that points to the ALB with a weight of 255 and a TTL of 1 hour. Two days later, a DevOps engineer notices that the previous static website is displayed sometimes when customers navigate to example.com.
How can the DevOps engineer ensure that the company serves only dynamic content for example.com?

Answer: C


NEW QUESTION # 440
A DevOps engineer has created an AWS CloudFormation template that deploys an application on Amazon EC2 instances The EC2 instances run Amazon Linux The application is deployed to the EC2 instances by using shell scripts that contain user data. The EC2 instances have an 1AM instance profile that has an 1AM role with the AmazonSSMManagedlnstanceCore managed policy attached The DevOps engineer has modified the user data in the CloudFormation template to install a new version of the application. The engineer has also applied the stack update. However, the application was not updated on the running EC2 instances. The engineer needs to ensure that the changes to the application are installed on the running EC2 instances.
Which combination of steps will meet these requirements? (Select TWO.)

Answer: B,C

Explanation:
Refactor User Data to Use cfn-init and cfn-hup:
* cfn-inithelps to bootstrap the instance, installing packages and starting services.
* cfn-hupis a daemon that can monitor metadata changes and re-apply configurations when necessary.
Example user data script withcfn-init:
#!/bin/bash
yum update -y
yum install -y aws-cfn-bootstrap
/opt/aws/bin/cfn-init -v --stack ${AWS::StackName} --resource WebServer --region ${AWS::Region}
/opt/aws/bin/cfn-hup
Use Systems Manager State Manager:
* State Manager can automatically apply an AWS Systems Manager document to instances at regular intervals, ensuring configurations are kept up-to-date.
Steps:
* Create an SSM document that installs and configures your application.
* Use State Manager to associate this document with your EC2 instances.
Example SSM document:
{
"schemaVersion": "2.2",
"description": "Install My Application",
"mainSteps": [
{
"action": "aws:runShellScript",
"name": "installApplication",
"inputs": {
"runCommand": [
"yum install -y my-application"
]
}
}
]
}
Create State Manager association:
aws ssm create-association --name "InstallMyApplication" --instance-id <instance-id> --document-version
"\$LATEST"
References:
* Using cfn-init and cfn-hup
* AWS Systems Manager State Manager


NEW QUESTION # 441
......

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