Quiz 2026 Perfect DOP-C02: Reliable AWS Certified DevOps Engineer - Professional Exam Questions

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Amazon DOP-C02 Exam Syllabus Topics:

Section	Weight	Objectives
Security, Governance, and Compliance	17%	- Enforce governance and compliance 1. Use AWS Config and AWS Organizations 2. Manage access and permissions at scale 3. Implement compliance rules and audits - Implement security controls 1. Encrypt data at rest and in transit 2. Secure secrets and credentials 3. Manage IAM for pipelines and environments - Automate security and compliance 1. Integrate security into CI/CD pipelines 2. Detect and remediate violations automatically 3. Use AWS Security Hub and AWS Shield
Incident and Event Response	14%	- Manage incidents and outages 1. Document and learn from events 2. Troubleshoot complex issues 3. Coordinate response and recovery - Improve operational processes 1. Optimize response time and efficiency 2. Implement feedback loops 3. Update runbooks and playbooks - Automate event management 1. Integrate with ticketing and workflow systems 2. Classify and prioritize events 3. Automate common operational tasks
SDLC Automation	22%	- Automate software release processes 1. Manage artifacts and dependencies 2. Implement deployment strategies 3. Automate rollback procedures - Implement CI/CD pipelines 1. Integrate version control systems 2. Use AWS CodePipeline, CodeBuild, CodeDeploy 3. Automate build, test, and deployment stages - Automate testing and validation 1. Security and compliance testing 2. Automate quality gates 3. Unit, integration, and performance testing
Monitoring and Logging	15%	- Automate incident response 1. Set up event-driven actions with Amazon EventBridge 2. Automate remediation and scaling 3. Implement alerting and notification workflows - Implement monitoring solutions 1. Use Amazon CloudWatch for metrics and alarms 2. Create dashboards and insights 3. Monitor infrastructure, applications, and costs - Implement logging and analysis 1. Centralize logs with CloudWatch Logs 2. Analyze logs for troubleshooting and security 3. Use AWS X-Ray for tracing
Resilient Cloud Solutions	15%	- Ensure reliability and scalability 1. Manage capacity and elasticity 2. Optimize performance and cost 3. Design for fault tolerance - 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 - Implement disaster recovery 1. Pilot light, warm standby, and active-active 2. Backup and restore strategies 3. Test and validate recovery plans
Configuration Management and Infrastructure as Code	17%	- Implement infrastructure as code 1. Enforce configuration standards 2. Manage templates and stacks 3. Use AWS CloudFormation, Terraform, or AWS CDK - Automate configuration management 1. Detect and remediate configuration drift 2. Maintain consistent configurations 3. Use AWS Systems Manager, Ansible, or Puppet - Manage infrastructure deployments 1. Implement version control for configurations 2. Provision and update resources automatically 3. Manage multi-account and multi-region environments

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Quiz Amazon - DOP-C02 - High Pass-Rate Reliable AWS Certified DevOps Engineer - Professional Exam Questions

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Amazon AWS Certified DevOps Engineer - Professional Sample Questions (Q147-Q152):

NEW QUESTION # 147
A DevOps engineer must implement a solution that immediately terminates Amazon EC2 instances in Auto Scaling groups when cryptocurrency mining activity is detected.
Which solution will meet these requirements with the LEAST development effort?

A. Configure Amazon Route 53 to send query logs directly to Amazon CloudWatch Logs. Create an AWS Lambda function that runs every 5 minutes and checks the query logs for domains related to cryptocurrency activity. If the domains are found, terminate the identified EC2 instances.
B. Enable AWS Security Hub. Monitor EC2 findings. Create an Amazon EventBridge rule with Security Hub as the event source. Create an AWS Lambda function that is triggered by the EventBridge rule. Configure the Lambda function to parse the event and terminate the identified EC2 instances.
C. Enable Amazon GuardDuty. Monitor EC2 findings. Create an Amazon EventBridge rule with GuardDuty as the event source. Create an AWS Lambda function that is triggered by the EventBridge rule. Configure the Lambda function to parse the event and terminate the identified EC2 instances.
D. Configure VPC Flow Logs to send flow logs to an Amazon S3 bucket. Create an AWS Lambda function that runs every 5 minutes and invokes an Amazon Athena query to find IP addresses associated with cryptocurrency activity. If the IP addresses are found, terminate the identified EC2 instances.

Answer: C

NEW QUESTION # 148
A company sells products through an ecommerce web application The company wants a dashboard that shows a pie chart of product transaction details. The company wants to integrate the dashboard With the company's existing Amazon CloudWatch dashboards Which solution Will meet these requirements With the MOST operational efficiency?

A. Update the ecommerce application to emit a JSON object to an Amazon S3 bucket for each processed transaction. Use Amazon Athena to query the S3 bucket and to visualize the results In a Pie chart format. Export the results from Athena Attach the results to the desired CloudWatch dashboard
B. Update the ecommerce application to emit a JSON object to a CloudWatch log group for each processed transaction_ Create an AWS Lambda function to aggregate and write the results to Amazon DynamoDB. Create a Lambda subscription filter for the log file. Attach the results to the desired CloudWatch dashboard.
C. Update the ecommerce application to use AWS X-Ray for instrumentation. Create a new X-Ray subsegment Add an annotation for each processed transaction. Use X-Ray traces to query the data and to visualize the results in a pie chart format Attach the results to the desired CloudWatch dashboard
D. Update the ecommerce application to emit a JSON object to a CloudWatch log group for each processed transaction. Use CloudWatch Logs Insights to query the log group and to visualize the results in a pie chart format Attach the results to the desired CloudWatch dashboard.

Answer: D

Explanation:
Explanation
The correct answer is A.
A comprehensive and detailed explanation is:
Option A is correct because it meets the requirements with the most operational efficiency. Updating the ecommerce application to emit a JSON object to a CloudWatch log group for each processed transaction is a simple and cost-effective way to collect the data needed for the dashboard. Using CloudWatch Logs Insights to query the log group and to visualize the results in a pie chart format is also a convenient and integrated solution that leverages the existing CloudWatch dashboards. Attaching the results to the desired CloudWatch dashboard is straightforward and does not require any additional steps or services.
Option B is incorrect because it introduces unnecessary complexity and cost. Updating the ecommerce application to emit a JSON object to an Amazon S3 bucket for each processed transaction is a valid way to store the data, but it requires creating and managing an S3 bucket and its permissions. Using Amazon Athena to query the S3 bucket and to visualize the results in a pie chart format is also a valid way to analyze the data, but it incurs charges based on the amount of data scanned by each query. Exporting the results from Athena and attaching them to the desired CloudWatch dashboard is also an extra step that adds more overhead and latency.
Option C is incorrect because it uses AWS X-Ray for an inappropriate purpose. Updating the ecommerce application to use AWS X-Ray for instrumentation is a good practice for monitoring and tracing distributed applications, but it is not designed for aggregating product transaction details.
Creating a new X-Ray subsegment and adding an annotation for each processed transaction is possible, but it would clutter the X-Ray service map and make it harder to debug performance issues. Using X-Ray traces to query the data and to visualize the results in a pie chart format is also possible, but it would require custom code and logic that are not supported by X-Ray natively. Attaching the results to the desired CloudWatch dashboard is also not supported by X-Ray directly, and would require additional steps or services.
Option D is incorrect because it introduces unnecessary complexity and cost. Updating the ecommerce application to emit a JSON object to a CloudWatch log group for each processed transaction is a simple and cost-effective way to collect the data needed for the dashboard, as in option A. However, creating an AWS Lambda function to aggregate and write the results to Amazon DynamoDB is redundant, as CloudWatch Logs Insights can already perform aggregation queries on log data. Creating a Lambda subscription filter for the log file is also redundant, as CloudWatch Logs Insights can already access log data directly. Attaching the results to the desired CloudWatch dashboard would also require additional steps or services, as DynamoDB does not support native integration with CloudWatch dashboards.
References:
CloudWatch Logs Insights
Amazon Athena
AWS X-Ray
AWS Lambda
Amazon DynamoDB

NEW QUESTION # 149
A development team uses AWS CodeCommit for version control for applications. The development team uses AWS CodePipeline, AWS CodeBuild. and AWS CodeDeploy for CI/CD infrastructure. In CodeCommit, the development team recently merged pull requests that did not pass long-running tests in the code base. The development team needed to perform rollbacks to branches in the codebase, resulting in lost time and wasted effort.
A DevOps engineer must automate testing of pull requests in CodeCommit to ensure that reviewers more easily see the results of automated tests as part of the pull request review.
What should the DevOps engineer do to meet this requirement?

A. Create an Amazon EventBridge rule that reacts to the pullRequestStatusChanged event. Create an AWS Lambda function that invokes a CodePipeline pipeline with a CodeBuild action that runs the tests for the application. Program the Lambda function to post the CodeBuild test results as a comment on the pull request when the test results are complete.
B. Create an Amazon EventBridge rule that reacts to pullRequestCreated and pullRequestSourceBranchUpdated events. Create an AWS Lambda function that invokes a CodePipeline pipeline with a CodeBuild action that runs the tests for the application. Program the Lambda function to post the CodeBuild badge as a comment on the pull request so that developers will see the badge in their code review.
C. Create an Amazon EventBridge rule that reacts to the pullRequestCreated event. Create an AWS Lambda function that invokes a CodePipeline pipeline with a CodeBuild action that runs the tests for the application. Program the Lambda function to post the CodeBuild test results as a comment on the pull request when the test results are complete.
D. Create an Amazon EventBridge rule that reacts to the pullRequestStatusChanged event. Create an AWS Lambda function that invokes a CodePipeline pipeline with a CodeBuild action that runs the tests for the application. Program the Lambda function to post the CodeBuild badge as a comment on the pull request so that developers will see the badge in their code review.

Answer: B

Explanation:
https://aws.amazon.com/es/blogs/devops/complete-ci-cd-with-aws-codecommit-aws-codebuild-aws-codedeploy-and-aws-codepipeline/

NEW QUESTION # 150
A company uses an organization in AWS Organizations with all features enabled to manage a fleet of AWS accounts. The company expects to create many new accounts for an upcoming project.
The company wants to ensure that the new accounts will not have default VPCs and that users can develop only in specific AWS Regions. The company must monitor the new accounts for compliance with the Center for Internet Security (CIS) AWS Foundations Benchmark framework.
Which combination of solutions will meet these requirements with the LEAST operational effort? (Select TWO.)

A. Activate AWS Control Tower. Install Customizations for AWS Control Tower (CfCT). Develop a custom AWS CloudFormation template to delete default VPCs. Configure Region denies, and ensure that users can access only the specified Regions.
B. Activate AWS Security Hub at the organization level. Select the CIS AWS Foundations Benchmark framework, and apply the framework to the organization.
C. Activate AWS Control Tower. Configure AWS Control Tower to disable internet-accessible subnets.
Set the maximum number of private subnets to zero. Configure Region denies, and ensure that users can access only the specified Regions.
D. Activate the CIS AWS Foundations Benchmark framework on the Control Library panel in AWS Control Tower.
E. Write an SCP that denies access to all Regions except the specified Regions. Create an AWS Lambda function that assumes an IAM role by using the Organizations default service role in each member account to identify and delete default VPCs. Create an Amazon EventBridge rule that invokes the Lambda function when the company creates a new AWS account.

Answer: A,B

Explanation:
The company's requirements span preventive governance, account baseline configuration, and continuous compliance monitoring, all with minimal operational overhead. AWS-native, organization-level services are the most efficient way to meet these goals.
To ensure that new accounts do not retain default VPCs and that development is restricted to specific Regions, AWS Control Tower is the correct foundation. However, Control Tower alone does not remove default VPCs. By installing Customizations for AWS Control Tower (CfCT), the company can automatically deploy OU-scoped CloudFormation templates during account provisioning. A simple CloudFormation template can delete default VPCs in all Regions, while Control Tower-managed Region deny guardrails (SCPs) restrict access to only approved Regions. This approach is declarative, repeatable, and tightly integrated with account creation workflows, resulting in low operational overhead.
For CIS AWS Foundations Benchmark compliance monitoring, AWS Security Hub is the purpose-built service. Enabling Security Hub at the organization level and selecting the CIS benchmark automatically evaluates all member accounts against CIS controls and continuously reports findings. This provides centralized visibility and compliance reporting without custom rule development.
Option C introduces custom Lambda automation and EventBridge logic, increasing maintenance burden.
Option E is incorrect because Control Tower does not provide full CIS benchmark monitoring; it only offers related detective guardrails.
Therefore, Option B (Control Tower + CfCT) and Option D (Security Hub with CIS benchmark) together provide the most efficient, scalable, and AWS-recommended solution.

NEW QUESTION # 151
A media company has several thousand Amazon EC2 instances in an AWS account. The company is using Slack and a shared email inbox for team communications and important updates. A DevOps engineer needs to send all AWS-scheduled EC2 maintenance notifications to the Slack channel and the shared inbox. The solution must include the instances' Name and Owner tags.
Which solution will meet these requirements?

A. Create an AWS Lambda function that sends EC2 maintenance notifications to the Slack channel and the shared inbox Monitor EC2 health events by using Amazon CloudWatch metrics Configure a CloudWatch alarm that invokes the Lambda function when a maintenance notification is received.
B. Use Amazon EventBridge to monitor for AWS Health Events Configure the maintenance events to target an Amazon Simple Notification Service (Amazon SNS) topic Subscribe an AWS Lambda function to the SNS topic to send notifications to the Slack channel and the shared inbox.
C. Configure AWS Support integration with AWS CloudTrail Create a CloudTrail lookup event to invoke an AWS Lambda function to pass EC2 maintenance notifications to Amazon Simple Notification Service (Amazon SNS) Configure Amazon SNS to target the Slack channel and the shared inbox.
D. Integrate AWS Trusted Advisor with AWS Config Configure a custom AWS Config rule to invoke an AWS Lambda function to publish notifications to an Amazon Simple Notification Service (Amazon SNS) topic Subscribe a Slack channel endpoint and the shared inbox to the topic.

Answer: B

Explanation:
Explanation
https://docs.aws.amazon.com/health/latest/ug/cloudwatch-events-health.html

NEW QUESTION # 152
......

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