AWS CERTIFIED DEVOPS ENGINEER – PROFESSIONAL (DOP-C02) COMPLETE
PRACTICE EXAM QUESTIONS AND ANSWERS | VERIFIED SOLUTIONS | UPDATED
2026/2027 CERTIFICATION PREP STUDY GUIDE
Examiner/Administrator: Amazon Web Services
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
AWS CERTIFIED DEVOPS ENGINEER – PROFESSIONAL (DOP-C02)
2026/2027 EDITION
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
COMPLETE PRACTICE EXAM
130+ MULTIPLE-CHOICE QUESTIONS
PASSING SCORE: 75%
TESTING TIME: 180 MINUTES
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
TABLE OF CONTENTS
1. SDLC AUTOMATION
2. CONFIGURATION MANAGEMENT & INFRASTRUCTURE AS CODE
3. RESILIENT CLOUD SOLUTIONS
4. MONITORING AND LOGGING
5. INCIDENT AND EVENT RESPONSE
6. HIGH AVAILABILITY & DISASTER RECOVERY
7. SECURITY, GOVERNANCE & COMPLIANCE
8. CI/CD PIPELINES
9. OPERATIONS AUTOMATION
10. COST OPTIMIZATION & PERFORMANCE MANAGEMENT
AMAZON WEB SERVICES CERTIFICATION PROGRAM || ALIGNED WITH CURRENT AWS
DOP-C02 EXAM BLUEPRINTS || PROFESSIONAL CERTIFICATION PREPARATION GUIDE
|| VERIFIED PRACTICE QUESTIONS AND SOLUTIONS || COMPREHENSIVE DEVOPS
ENGINEERING REVIEW || CLOUD OPERATIONS & AUTOMATION FOCUS || PREPARED
,FOR PROFESSIONAL CERTIFICATION CANDIDATES || PROFESSIONAL EXAMINATION
USE
SDLC AUTOMATION (QUESTIONS 1–8)
Q1. A company deploys application updates multiple times per day using AWS
CodePipeline. The DevOps team wants every deployment to automatically execute
unit tests, security scans, and integration tests before reaching production. Which
approach best satisfies this requirement?
A. Use AWS Systems Manager Run Command after deployment
B. Configure AWS CodeBuild stages within CodePipeline to execute testing phases
before production approval
C. Run tests manually from an EC2 instance
D. Trigger tests from CloudWatch Logs after deployment
Correct Answer: 🔴 B. Configure AWS CodeBuild stages within CodePipeline to
execute testing phases before production approval
Explanation: 🔹 CodeBuild integrates natively with CodePipeline and supports
automated testing throughout the CI/CD workflow. Unit, integration, and security
testing can be enforced before production deployment. Option A occurs too late in
the lifecycle. Option C is manual and error-prone. Option D does not provide
reliable deployment gating mechanisms.
Q2. A development team wants application builds to be reproducible across all
environments. Which AWS service provides a managed build environment with
version-controlled build specifications?
A. AWS CodeBuild
B. AWS CodeCommit
C. AWS Config
D. AWS Lambda
Correct Answer: 🔴 A. AWS CodeBuild
,Explanation: 🔹 CodeBuild provides isolated, managed build environments defined
through buildspec files stored in source control. This promotes consistency and
repeatability. CodeCommit stores source code only. AWS Config tracks
configurations. Lambda executes code but is not a build service.
Q3. A DevOps engineer wants to implement blue/green deployments for an ECS
application with minimal downtime. Which AWS service combination is most
appropriate?
A. CodeDeploy and ECS
B. CloudTrail and ECS
C. S3 and ECS
D. AWS Config and ECS
Correct Answer: 🔴 A. CodeDeploy and ECS
Explanation: 🔹 AWS CodeDeploy supports blue/green deployments for ECS
workloads, enabling traffic shifting and rollback capabilities. CloudTrail provides
auditing. S3 provides storage. AWS Config focuses on compliance monitoring rather
than deployment orchestration.
Q4. A company experiences deployment failures due to inconsistent environment
variables across stages. Which approach provides the most maintainable solution?
A. Store variables in developer workstations
B. Hardcode variables in source code
C. Store configuration values in AWS Systems Manager Parameter Store
D. Email configuration files before deployment
Correct Answer: 🔴 C. Store configuration values in AWS Systems Manager
Parameter Store
Explanation: 🔹 Parameter Store centralizes configuration management and
supports encryption, versioning, and controlled access. Hardcoding values creates
, maintenance challenges. Workstation storage and email distribution are insecure
and unreliable.
Q5. Which deployment strategy reduces risk by gradually shifting traffic to a new
application version while monitoring performance metrics?
A. Big-bang deployment
B. Canary deployment
C. Manual deployment
D. Rebuild deployment
Correct Answer: 🔴 B. Canary deployment
Explanation: 🔹 Canary deployments expose only a subset of users to new releases
initially. Performance can be validated before full rollout. Big-bang deployments
increase risk exposure. Manual and rebuild deployments do not inherently provide
progressive traffic shifting.
Q6. A company wants automated rollback if application error rates exceed
predefined thresholds after deployment. Which solution is best?
A. CloudWatch alarms integrated with CodeDeploy rollback policies
B. Lambda function executed weekly
C. Manual review process
D. AWS Config rule evaluation
Correct Answer: 🔴 A. CloudWatch alarms integrated with CodeDeploy rollback
policies
Explanation: 🔹 CloudWatch alarms can automatically trigger CodeDeploy rollback
actions when metrics indicate degradation. This reduces downtime and operational
response time. Manual reviews are slower, and Config rules do not manage
deployment rollbacks.
PRACTICE EXAM QUESTIONS AND ANSWERS | VERIFIED SOLUTIONS | UPDATED
2026/2027 CERTIFICATION PREP STUDY GUIDE
Examiner/Administrator: Amazon Web Services
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
AWS CERTIFIED DEVOPS ENGINEER – PROFESSIONAL (DOP-C02)
2026/2027 EDITION
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
COMPLETE PRACTICE EXAM
130+ MULTIPLE-CHOICE QUESTIONS
PASSING SCORE: 75%
TESTING TIME: 180 MINUTES
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
TABLE OF CONTENTS
1. SDLC AUTOMATION
2. CONFIGURATION MANAGEMENT & INFRASTRUCTURE AS CODE
3. RESILIENT CLOUD SOLUTIONS
4. MONITORING AND LOGGING
5. INCIDENT AND EVENT RESPONSE
6. HIGH AVAILABILITY & DISASTER RECOVERY
7. SECURITY, GOVERNANCE & COMPLIANCE
8. CI/CD PIPELINES
9. OPERATIONS AUTOMATION
10. COST OPTIMIZATION & PERFORMANCE MANAGEMENT
AMAZON WEB SERVICES CERTIFICATION PROGRAM || ALIGNED WITH CURRENT AWS
DOP-C02 EXAM BLUEPRINTS || PROFESSIONAL CERTIFICATION PREPARATION GUIDE
|| VERIFIED PRACTICE QUESTIONS AND SOLUTIONS || COMPREHENSIVE DEVOPS
ENGINEERING REVIEW || CLOUD OPERATIONS & AUTOMATION FOCUS || PREPARED
,FOR PROFESSIONAL CERTIFICATION CANDIDATES || PROFESSIONAL EXAMINATION
USE
SDLC AUTOMATION (QUESTIONS 1–8)
Q1. A company deploys application updates multiple times per day using AWS
CodePipeline. The DevOps team wants every deployment to automatically execute
unit tests, security scans, and integration tests before reaching production. Which
approach best satisfies this requirement?
A. Use AWS Systems Manager Run Command after deployment
B. Configure AWS CodeBuild stages within CodePipeline to execute testing phases
before production approval
C. Run tests manually from an EC2 instance
D. Trigger tests from CloudWatch Logs after deployment
Correct Answer: 🔴 B. Configure AWS CodeBuild stages within CodePipeline to
execute testing phases before production approval
Explanation: 🔹 CodeBuild integrates natively with CodePipeline and supports
automated testing throughout the CI/CD workflow. Unit, integration, and security
testing can be enforced before production deployment. Option A occurs too late in
the lifecycle. Option C is manual and error-prone. Option D does not provide
reliable deployment gating mechanisms.
Q2. A development team wants application builds to be reproducible across all
environments. Which AWS service provides a managed build environment with
version-controlled build specifications?
A. AWS CodeBuild
B. AWS CodeCommit
C. AWS Config
D. AWS Lambda
Correct Answer: 🔴 A. AWS CodeBuild
,Explanation: 🔹 CodeBuild provides isolated, managed build environments defined
through buildspec files stored in source control. This promotes consistency and
repeatability. CodeCommit stores source code only. AWS Config tracks
configurations. Lambda executes code but is not a build service.
Q3. A DevOps engineer wants to implement blue/green deployments for an ECS
application with minimal downtime. Which AWS service combination is most
appropriate?
A. CodeDeploy and ECS
B. CloudTrail and ECS
C. S3 and ECS
D. AWS Config and ECS
Correct Answer: 🔴 A. CodeDeploy and ECS
Explanation: 🔹 AWS CodeDeploy supports blue/green deployments for ECS
workloads, enabling traffic shifting and rollback capabilities. CloudTrail provides
auditing. S3 provides storage. AWS Config focuses on compliance monitoring rather
than deployment orchestration.
Q4. A company experiences deployment failures due to inconsistent environment
variables across stages. Which approach provides the most maintainable solution?
A. Store variables in developer workstations
B. Hardcode variables in source code
C. Store configuration values in AWS Systems Manager Parameter Store
D. Email configuration files before deployment
Correct Answer: 🔴 C. Store configuration values in AWS Systems Manager
Parameter Store
Explanation: 🔹 Parameter Store centralizes configuration management and
supports encryption, versioning, and controlled access. Hardcoding values creates
, maintenance challenges. Workstation storage and email distribution are insecure
and unreliable.
Q5. Which deployment strategy reduces risk by gradually shifting traffic to a new
application version while monitoring performance metrics?
A. Big-bang deployment
B. Canary deployment
C. Manual deployment
D. Rebuild deployment
Correct Answer: 🔴 B. Canary deployment
Explanation: 🔹 Canary deployments expose only a subset of users to new releases
initially. Performance can be validated before full rollout. Big-bang deployments
increase risk exposure. Manual and rebuild deployments do not inherently provide
progressive traffic shifting.
Q6. A company wants automated rollback if application error rates exceed
predefined thresholds after deployment. Which solution is best?
A. CloudWatch alarms integrated with CodeDeploy rollback policies
B. Lambda function executed weekly
C. Manual review process
D. AWS Config rule evaluation
Correct Answer: 🔴 A. CloudWatch alarms integrated with CodeDeploy rollback
policies
Explanation: 🔹 CloudWatch alarms can automatically trigger CodeDeploy rollback
actions when metrics indicate degradation. This reduces downtime and operational
response time. Manual reviews are slower, and Config rules do not manage
deployment rollbacks.
