| Exam Name | DOP-C02 Practice Exam – AWS Certified DevOps Engineer Professional (2026 Updated) |
|---|---|
| Exam Provider | Amazon Web Services (AWS) |
| Certification Type | Professional-Level Certification (DevOps, Automation, CI/CD, Observability & Security on AWS) |
| Total Practice Questions | 150 Advanced MCQs (Scenario-Based + CI/CD + Monitoring + Security + Resilience) |
| Exam Domains Covered | • SDLC Automation (CodePipeline, CodeBuild, CodeDeploy) • Configuration Management & IaC (CloudFormation, Systems Manager) • Monitoring & Logging (CloudWatch, X-Ray, Logs Insights) • Incident & Event Response (EventBridge, Lambda, automation) • High Availability, Fault Tolerance & Disaster Recovery • Security & Compliance (IAM, KMS, Secrets Manager, GuardDuty, Config) • Deployment Strategies (Blue/Green, Canary, Rolling) |
| Questions in Real Exam | • Total: ~75 Questions • Complex, scenario-heavy (multi-service integration) • Focus on automation, troubleshooting, and real-world DevOps decisions |
| Exam Duration | • Total Time: 180 Minutes • Long, complex scenarios requiring deep analysis • Requires strong hands-on AWS DevOps experience |
| Passing Score | • Scaled Score: 750 / 1000 • High difficulty with emphasis on advanced architecture decisions • Requires deep understanding of AWS services and integration patterns |
| Question Format | • Multiple Choice & Multiple Response • Complex Scenario-Based DevOps Cases • CI/CD Pipeline Design & Optimization • Monitoring, Logging & Incident Response • Security & Compliance Automation Questions |
| Difficulty Level | Advanced to Expert (Professional-Level + Real-World DevOps Scenarios) |
| Key Knowledge Areas | • CI/CD pipelines (CodePipeline, CodeBuild, CodeDeploy) • Infrastructure as Code (CloudFormation, drift detection) • Observability (CloudWatch metrics, logs, X-Ray tracing) • Deployment strategies (blue/green, canary, rolling updates) • Event-driven automation (EventBridge, Lambda remediation) • Security (IAM roles, KMS encryption, Secrets Manager) • Multi-region architectures and disaster recovery |
| Common Exam Traps | • Choosing manual processes instead of automation • Ignoring rollback strategies in deployments • Misconfiguring IAM roles and cross-account access • Overlooking monitoring, logging, or alerting requirements • Confusing deployment strategies (blue/green vs canary) • Not considering multi-region or failover architecture • Ignoring compliance and security automation requirements |
| Skills Developed | • Designing and managing CI/CD pipelines at scale • Automating infrastructure and deployments • Implementing advanced monitoring and observability • Handling incident response and automated remediation • Securing cloud environments with best practices • Building resilient, fault-tolerant architectures |
| Study Strategy | • Focus on real-world DevOps scenarios and decision-making • Practice CI/CD pipelines and deployment strategies • Learn CloudWatch, X-Ray, and logging tools deeply • Understand IAM roles, cross-account access, and security • Study failure scenarios and rollback mechanisms • Take full-length mock exams under time pressure • Review explanations to identify hidden exam traps |
| Best For | • DevOps engineers and cloud engineers • Site Reliability Engineers (SREs) • Professionals managing CI/CD pipelines on AWS • Engineers working on automation, monitoring, and security |
| Career Benefits | • Validates advanced DevOps and automation expertise • Opens roles in DevOps, SRE, and cloud architecture • Enhances skills in CI/CD, observability, and security • Increases earning potential in senior cloud roles • Recognized as one of the most advanced AWS certifications |
| Updated | 2026 Latest Version – Based on AWS DOP-C02 Exam Guide & Real Exam Patterns |
1.
A company wants zero-downtime deployments for a web app. What is BEST?
A. In-place deployment
B. Blue/green deployment
C. Manual deployment
D. EC2 reboot
Answer: B
Rationale: Blue/green deployments allow traffic shifting between environments, enabling seamless updates with no downtime and easy rollback if issues occur.
2.
A pipeline needs automated build, test, and deploy stages. What is BEST?
A. CodePipeline
B. EC2
C. S3
D. RDS
Answer: A
Rationale: CodePipeline orchestrates CI/CD workflows, integrating build (CodeBuild), test, and deploy stages for automation.
3.
A company wants infrastructure as code. What is BEST?
A. Manual setup
B. CloudFormation
C. EC2
D. S3
Answer: B
Rationale: CloudFormation enables declarative infrastructure management, version control, and repeatable deployments.
4.
A developer needs automated builds. What is BEST?
A. CodeBuild
B. EC2
C. S3
D. RDS
Answer: A
Rationale: CodeBuild compiles code, runs tests, and produces artifacts in a fully managed environment.
5.
A company needs deployment automation. What is BEST?
A. CodeDeploy
B. EC2
C. S3
D. RDS
Answer: A
Rationale: CodeDeploy automates deployments with support for rollback and different deployment strategies.
6.
A company wants monitoring and alerting. What is BEST?
A. CloudTrail
B. CloudWatch
C. Config
D. Lambda
Answer: B
Rationale: CloudWatch provides metrics, logs, and alarms for monitoring system health.
7.
A company wants to trace distributed requests. What is BEST?
A. CloudTrail
B. X-Ray
C. Config
D. S3
Answer: B
Rationale: X-Ray provides tracing across distributed systems.
8.
A company wants log aggregation. What is BEST?
A. CloudWatch Logs
B. CloudTrail
C. Config
D. Lambda
Answer: A
Rationale: CloudWatch Logs centralizes logs.
9.
A company wants automated rollback on failure. What is BEST?
A. Manual
B. CodeDeploy rollback
C. EC2
D. S3
Answer: B
Rationale: CodeDeploy supports automatic rollback when failures occur.
10.
A company needs secure secret storage. What is BEST?
A. S3
B. Secrets Manager
C. CloudWatch
D. Lambda
Answer: B
Rationale: Secrets Manager securely stores and rotates secrets.
11.
A company wants event-driven automation. What is BEST?
A. EventBridge
B. EC2
C. RDS
D. S3
Answer: A
Rationale: EventBridge triggers workflows based on events.
12.
A company wants scalable container deployment. What is BEST?
A. ECS
B. EC2
C. S3
D. RDS
Answer: A
Rationale: ECS manages containerized workloads.
13.
A company wants serverless containers. What is BEST?
A. ECS
B. Fargate
C. EC2
D. Lambda
Answer: B
Rationale: Fargate removes server management.
14.
A company wants to enforce least privilege. What is BEST?
A. Full access
B. IAM policies
C. S3
D. EC2
Answer: B
Rationale: IAM policies enforce least privilege.
15.
A company needs secure API authentication. What is BEST?
A. IAM
B. Cognito
C. S3
D. EC2
Answer: B
Rationale: Cognito provides authentication and token management.
16.
A company wants high availability. What is BEST?
A. Single AZ
B. Multi-AZ deployment
C. EC2
D. S3
Answer: B
Rationale: Multi-AZ ensures redundancy.
17.
A company wants auto scaling. What is BEST?
A. Manual scaling
B. Auto Scaling
C. EC2
D. S3
Answer: B
Rationale: Auto Scaling adjusts capacity automatically.
18.
A company wants cost optimization. What is BEST?
A. Use EC2 only
B. Use serverless
C. Use RDS
D. Use S3
Answer: B
Rationale: Serverless reduces operational costs.
19.
A company needs centralized configuration. What is BEST?
A. Hardcode
B. Systems Manager Parameter Store
C. S3
D. EC2
Answer: B
Rationale: Parameter Store securely manages configs.
20.
A company wants CI/CD pipeline. What is BEST?
A. CodePipeline
B. EC2
C. S3
D. RDS
Answer: A
Rationale: CodePipeline automates CI/CD.
21.
A company wants metrics dashboards. What is BEST?
A. CloudWatch dashboards
B. CloudTrail
C. Config
D. Lambda
Answer: A
Rationale: Dashboards visualize metrics.
22.
A company needs audit logging. What is BEST?
A. CloudTrail
B. CloudWatch
C. Config
D. Lambda
Answer: A
Rationale: CloudTrail logs API calls.
23.
A company wants compliance tracking. What is BEST?
A. CloudTrail
B. AWS Config
C. CloudWatch
D. Lambda
Answer: B
Rationale: Config tracks resource compliance.
24.
A company wants infrastructure versioning. What is BEST?
A. Manual
B. CloudFormation
C. EC2
D. S3
Answer: B
Rationale: CloudFormation templates enable versioning.
25.
A company wants deployment approvals. What is BEST?
A. Manual
B. CodePipeline approval action
C. EC2
D. S3
Answer: B
Rationale: CodePipeline supports approval gates.
26.
A company wants blue/green deployments. What is BEST?
A. Manual
B. CodeDeploy
C. EC2
D. S3
Answer: B
Rationale: CodeDeploy supports blue/green.
27.
A company wants canary deployments. What is BEST?
A. Manual
B. Lambda alias traffic shifting
C. EC2
D. S3
Answer: B
Rationale: Lambda aliases enable canary releases.
28.
A company wants monitoring alerts. What is BEST?
A. CloudWatch alarms
B. CloudTrail
C. Config
D. Lambda
Answer: A
Rationale: Alarms notify issues.
29.
A company wants log analysis. What is BEST?
A. CloudWatch Logs Insights
B. CloudTrail
C. Config
D. Lambda
Answer: A
Rationale: Logs Insights enables querying logs.
30.
A company wants resilient architecture. What is BEST?
A. Single instance
B. Multi-AZ + Auto Scaling
C. EC2
D. S3
Answer: B
Rationale: Multi-AZ with Auto Scaling ensures resilience, fault tolerance, and automatic recovery from failures.
31.
A deployment fails in production and must automatically revert. What is BEST?
A. Manual rollback
B. CodeDeploy automatic rollback
C. EC2 reboot
D. S3 restore
Answer: B
Rationale: CodeDeploy supports automatic rollback when deployment alarms or failures are detected. This ensures minimal downtime and reduces manual intervention during production incidents.
32.
A pipeline needs approval before production deployment. What is BEST?
A. Manual email
B. CodePipeline approval action
C. EC2
D. S3
Answer: B
Rationale: CodePipeline supports manual approval stages, allowing human validation before deploying to production, improving governance and reducing risk.
33.
A company wants to deploy infrastructure changes safely. What is BEST?
A. Direct update
B. CloudFormation change sets
C. EC2
D. S3
Answer: B
Rationale: Change sets allow previewing modifications before execution, reducing risk and ensuring visibility into infrastructure changes.
34.
A system needs real-time anomaly detection in metrics. What is BEST?
A. CloudTrail
B. CloudWatch anomaly detection
C. Config
D. Lambda
Answer: B
Rationale: CloudWatch anomaly detection automatically identifies unusual patterns in metrics, enabling proactive monitoring and alerting.
35.
A company wants centralized logging across services. What is BEST?
A. CloudTrail
B. CloudWatch Logs
C. Config
D. Lambda
Answer: B
Rationale: CloudWatch Logs aggregates logs from multiple services, enabling centralized monitoring and troubleshooting.
36.
A company needs distributed tracing for microservices. What is BEST?
A. CloudTrail
B. X-Ray
C. Config
D. S3
Answer: B
Rationale: X-Ray traces requests across services, identifying bottlenecks and failures in distributed systems.
37.
A company wants to automate scaling based on metrics. What is BEST?
A. Manual scaling
B. Auto Scaling with CloudWatch alarms
C. EC2
D. S3
Answer: B
Rationale: Auto Scaling integrates with CloudWatch alarms to adjust capacity dynamically based on demand.
38.
A company wants immutable infrastructure. What is BEST?
A. Patch existing servers
B. Replace instances with new ones
C. EC2
D. S3
Answer: B
Rationale: Immutable infrastructure ensures consistency by replacing instances instead of modifying them, reducing configuration drift.
39.
A company needs secure secret rotation. What is BEST?
A. Hardcode
B. Secrets Manager rotation
C. S3
D. EC2
Answer: B
Rationale: Secrets Manager supports automatic rotation, improving security and compliance.
40.
A company wants to enforce compliance rules. What is BEST?
A. CloudTrail
B. AWS Config rules
C. CloudWatch
D. Lambda
Answer: B
Rationale: AWS Config rules evaluate resources against compliance requirements.
41.
A company wants canary deployments. What is BEST?
A. Manual
B. CodeDeploy or Lambda traffic shifting
C. EC2
D. S3
Answer: B
Rationale: Canary deployments gradually shift traffic, reducing risk during releases.
42.
A company needs audit logs of API calls. What is BEST?
A. CloudTrail
B. CloudWatch
C. Config
D. Lambda
Answer: A
Rationale: CloudTrail logs API activity for auditing and compliance.
43.
A company wants to reduce deployment risk. What is BEST?
A. Big-bang deployment
B. Blue/green deployment
C. EC2
D. S3
Answer: B
Rationale: Blue/green deployment allows quick rollback and minimizes downtime.
44.
A company wants automated build testing. What is BEST?
A. CodeBuild
B. EC2
C. S3
D. RDS
Answer: A
Rationale: CodeBuild runs automated tests during builds.
45.
A company needs pipeline orchestration. What is BEST?
A. CodePipeline
B. EC2
C. S3
D. RDS
Answer: A
Rationale: CodePipeline orchestrates CI/CD workflows.
46.
A company wants event-driven automation. What is BEST?
A. EventBridge
B. EC2
C. RDS
D. S3
Answer: A
Rationale: EventBridge triggers workflows based on events.
47.
A company wants secure access control. What is BEST?
A. Full access
B. IAM least privilege
C. S3
D. EC2
Answer: B
Rationale: Least privilege reduces risk and enforces security.
48.
A company wants monitoring dashboards. What is BEST?
A. CloudWatch dashboards
B. CloudTrail
C. Config
D. Lambda
Answer: A
Rationale: Dashboards visualize metrics.
49.
A company wants to debug logs quickly. What is BEST?
A. CloudWatch Logs Insights
B. CloudTrail
C. Config
D. Lambda
Answer: A
Rationale: Logs Insights enables fast log queries.
50.
A company wants automated rollback based on alarms. What is BEST?
A. Manual
B. CodeDeploy + CloudWatch alarms
C. EC2
D. S3
Answer: B
Rationale: Integration allows rollback when alarms trigger.
51.
A company wants container orchestration. What is BEST?
A. ECS
B. EC2
C. S3
D. RDS
Answer: A
Rationale: ECS manages containers.
52.
A company wants serverless containers. What is BEST?
A. ECS
B. Fargate
C. EC2
D. Lambda
Answer: B
Rationale: Fargate removes server management.
53.
A company needs scalable architecture. What is BEST?
A. Single instance
B. Auto Scaling
C. EC2
D. S3
Answer: B
Rationale: Auto Scaling handles demand.
54.
A company wants encryption at rest. What is BEST?
A. IAM
B. KMS
C. CloudWatch
D. Lambda
Answer: B
Rationale: KMS manages encryption keys.
55.
A company wants CI/CD pipeline. What is BEST?
A. CodePipeline
B. EC2
C. S3
D. RDS
Answer: A
Rationale: CodePipeline automates CI/CD.
56.
A company needs infrastructure versioning. What is BEST?
A. Manual
B. CloudFormation
C. EC2
D. S3
Answer: B
Rationale: CloudFormation supports versioning.
57.
A company wants log aggregation. What is BEST?
A. CloudWatch Logs
B. CloudTrail
C. Config
D. Lambda
Answer: A
Rationale: Logs centralize monitoring.
58.
A company wants real-time alerts. What is BEST?
A. CloudWatch alarms
B. CloudTrail
C. Config
D. Lambda
Answer: A
Rationale: Alarms notify issues.
59.
A company wants audit compliance. What is BEST?
A. CloudTrail
B. CloudWatch
C. Config
D. Lambda
Answer: A
Rationale: CloudTrail logs API activity.
60.
A company wants resilient systems. What is BEST?
A. Single AZ
B. Multi-AZ + Auto Scaling
C. EC2
D. S3
Answer: B
Rationale: Multi-AZ ensures redundancy and fault tolerance, while Auto Scaling maintains availability under load.
61.
A CodePipeline deployment fails intermittently due to environment inconsistencies. What is BEST?
A. Retry manually
B. Use immutable infrastructure
C. Use EC2
D. Use S3
Answer: B
Rationale: Immutable infrastructure ensures consistent environments by replacing instances instead of modifying them. This eliminates configuration drift and reduces deployment failures caused by inconsistent states.
62.
A company needs cross-account CI/CD deployments. What is BEST?
A. Hardcoded credentials
B. IAM roles with cross-account trust
C. S3
D. EC2
Answer: B
Rationale: Cross-account IAM roles allow secure delegation of permissions between accounts, enabling pipelines to deploy resources without exposing credentials.
63.
A company wants to minimize deployment risk in production. What is BEST?
A. Big-bang deployment
B. Canary deployment
C. EC2
D. S3
Answer: B
Rationale: Canary deployments release changes gradually to a subset of users, reducing impact and allowing quick rollback if issues arise.
64.
A company wants automated rollback when latency spikes. What is BEST?
A. Manual rollback
B. CloudWatch alarms + CodeDeploy
C. EC2
D. S3
Answer: B
Rationale: Integrating CloudWatch alarms with CodeDeploy enables automatic rollback when performance metrics exceed thresholds.
65.
A system experiences unpredictable traffic spikes. What is BEST?
A. Manual scaling
B. Auto Scaling with predictive scaling
C. EC2
D. S3
Answer: B
Rationale: Predictive scaling uses historical patterns to proactively scale resources, improving performance during spikes.
66.
A company wants centralized log analytics across accounts. What is BEST?
A. CloudTrail
B. CloudWatch Logs cross-account subscription
C. Config
D. Lambda
Answer: B
Rationale: Cross-account subscriptions centralize logs for analysis and monitoring across environments.
67.
A company wants proactive monitoring of anomalies. What is BEST?
A. CloudTrail
B. CloudWatch anomaly detection
C. Config
D. Lambda
Answer: B
Rationale: Anomaly detection automatically identifies unusual patterns in metrics.
68.
A company needs secure parameter storage. What is BEST?
A. Hardcode
B. Parameter Store (SecureString)
C. S3
D. EC2
Answer: B
Rationale: Parameter Store securely stores configuration data with encryption.
69.
A company wants automated compliance enforcement. What is BEST?
A. CloudTrail
B. AWS Config rules + remediation
C. CloudWatch
D. Lambda
Answer: B
Rationale: Config rules evaluate compliance, and remediation actions enforce corrections automatically.
70.
A company wants distributed tracing across services. What is BEST?
A. CloudTrail
B. X-Ray
C. Config
D. S3
Answer: B
Rationale: X-Ray traces requests across distributed systems.
71.
A company wants to reduce build times. What is BEST?
A. Increase EC2
B. Use CodeBuild caching
C. S3
D. RDS
Answer: B
Rationale: Caching dependencies in CodeBuild reduces build time and improves efficiency.
72.
A company wants pipeline security. What is BEST?
A. Hardcode credentials
B. IAM roles for pipeline stages
C. S3
D. EC2
Answer: B
Rationale: IAM roles ensure secure access without exposing credentials.
73.
A company needs rollback for Lambda deployments. What is BEST?
A. Manual
B. Lambda versions and aliases
C. EC2
D. S3
Answer: B
Rationale: Versions and aliases enable traffic shifting and rollback.
74.
A company wants to prevent configuration drift. What is BEST?
A. Manual checks
B. Immutable infrastructure + CloudFormation
C. EC2
D. S3
Answer: B
Rationale: Immutable infrastructure ensures consistency.
75.
A company wants to test production safely. What is BEST?
A. Deploy fully
B. Canary deployment
C. EC2
D. S3
Answer: B
Rationale: Canary deployments reduce risk.
76.
A company needs audit logs. What is BEST?
A. CloudTrail
B. CloudWatch
C. Config
D. Lambda
Answer: A
Rationale: CloudTrail logs API calls.
77.
A company wants centralized dashboards. What is BEST?
A. CloudWatch dashboards
B. CloudTrail
C. Config
D. Lambda
Answer: A
Rationale: Dashboards visualize metrics.
78.
A company wants log search. What is BEST?
A. CloudWatch Logs Insights
B. CloudTrail
C. Config
D. Lambda
Answer: A
Rationale: Logs Insights queries logs.
79.
A company needs event-driven automation. What is BEST?
A. EventBridge
B. EC2
C. RDS
D. S3
Answer: A
Rationale: EventBridge triggers workflows.
80.
A company wants secure secret rotation. What is BEST?
A. Hardcode
B. Secrets Manager
C. S3
D. EC2
Answer: B
Rationale: Secrets Manager rotates credentials.
81.
A company wants CI/CD pipeline. What is BEST?
A. CodePipeline
B. EC2
C. S3
D. RDS
Answer: A
Rationale: CodePipeline automates workflows.
82.
A company needs automated builds. What is BEST?
A. CodeBuild
B. EC2
C. S3
D. RDS
Answer: A
Rationale: CodeBuild compiles code.
83.
A company wants deployment automation. What is BEST?
A. CodeDeploy
B. EC2
C. S3
D. RDS
Answer: A
Rationale: CodeDeploy automates deployments.
84.
A company wants container orchestration. What is BEST?
A. ECS
B. EC2
C. S3
D. RDS
Answer: A
Rationale: ECS manages containers.
85.
A company wants serverless containers. What is BEST?
A. ECS
B. Fargate
C. EC2
D. Lambda
Answer: B
Rationale: Fargate removes server management.
86.
A company wants auto scaling. What is BEST?
A. Manual
B. Auto Scaling
C. EC2
D. S3
Answer: B
Rationale: Auto Scaling adjusts capacity.
87.
A company wants encryption. What is BEST?
A. IAM
B. KMS
C. CloudWatch
D. Lambda
Answer: B
Rationale: KMS manages encryption.
88.
A company wants monitoring alerts. What is BEST?
A. CloudWatch alarms
B. CloudTrail
C. Config
D. Lambda
Answer: A
Rationale: Alarms notify issues.
89.
A company wants infrastructure as code. What is BEST?
A. Manual
B. CloudFormation
C. EC2
D. S3
Answer: B
Rationale: CloudFormation enables IaC.
90.
A company wants resilient systems. What is BEST?
A. Single instance
B. Multi-AZ + Auto Scaling
C. EC2
D. S3
Answer: B
Rationale: Multi-AZ ensures redundancy and fault tolerance.
91.
A multi-region deployment must fail over automatically when latency increases. What is BEST?
A. Manual switch
B. Route 53 latency-based routing with health checks
C. EC2
D. S3
Answer: B
Rationale: Route 53 latency-based routing directs traffic to the lowest-latency endpoint and, with health checks, automatically fails over to healthy regions, ensuring high availability and optimal performance.
92.
A pipeline must deploy to multiple regions simultaneously. What is BEST?
A. Manual deployment
B. CodePipeline with cross-region actions
C. EC2
D. S3
Answer: B
Rationale: CodePipeline supports cross-region deployments, enabling automated, consistent releases across regions for global applications.
93.
A system needs automated remediation when CPU usage exceeds threshold. What is BEST?
A. Manual action
B. CloudWatch alarm + Lambda remediation
C. EC2
D. S3
Answer: B
Rationale: CloudWatch alarms can trigger Lambda functions to perform remediation actions automatically, reducing downtime and improving resilience.
94.
A company wants to test system resilience under failure conditions. What is BEST?
A. Ignore
B. Chaos engineering (Fault Injection Simulator)
C. EC2
D. S3
Answer: B
Rationale: AWS Fault Injection Simulator enables controlled failure testing, helping identify weaknesses and improve resilience.
95.
A company wants centralized security monitoring. What is BEST?
A. CloudTrail only
B. Security Hub
C. Config
D. Lambda
Answer: B
Rationale: Security Hub aggregates findings across AWS services, providing centralized visibility and compliance monitoring.
96.
A company needs real-time threat detection. What is BEST?
A. CloudTrail
B. GuardDuty
C. Config
D. Lambda
Answer: B
Rationale: GuardDuty uses machine learning to detect threats and anomalies in AWS environments.
97.
A company wants automated compliance auditing. What is BEST?
A. CloudTrail
B. AWS Config + rules
C. CloudWatch
D. Lambda
Answer: B
Rationale: Config evaluates resources against compliance rules and provides audit reports.
98.
A company wants centralized logging across accounts. What is BEST?
A. CloudTrail
B. CloudWatch Logs + cross-account
C. Config
D. Lambda
Answer: B
Rationale: Cross-account logging centralizes monitoring and simplifies analysis.
99.
A company wants deployment rollback based on error rate. What is BEST?
A. Manual
B. CloudWatch alarms + CodeDeploy
C. EC2
D. S3
Answer: B
Rationale: CodeDeploy integrates with CloudWatch to trigger rollback automatically when error thresholds are exceeded.
100.
A company needs secure key management. What is BEST?
A. IAM
B. KMS
C. CloudWatch
D. Lambda
Answer: B
Rationale: KMS manages encryption keys securely with auditing and rotation.
101.
A company wants event-driven remediation. What is BEST?
A. EventBridge + Lambda
B. EC2
C. RDS
D. S3
Answer: A
Rationale: EventBridge triggers Lambda functions in response to events, enabling automated remediation.
102.
A company wants infrastructure drift detection. What is BEST?
A. Manual
B. CloudFormation drift detection
C. EC2
D. S3
Answer: B
Rationale: Drift detection identifies changes outside templates, ensuring infrastructure consistency.
103.
A company wants high availability for containers. What is BEST?
A. Single instance
B. ECS with multiple AZs
C. EC2
D. S3
Answer: B
Rationale: Deploying containers across AZs ensures fault tolerance and availability.
104.
A company wants automated scaling for containers. What is BEST?
A. Manual
B. ECS service auto scaling
C. EC2
D. S3
Answer: B
Rationale: ECS auto scaling adjusts container count based on demand.
105.
A company wants secure API access. What is BEST?
A. IAM
B. Cognito + API Gateway
C. S3
D. EC2
Answer: B
Rationale: Cognito provides authentication integrated with API Gateway.
106.
A company wants log analytics. What is BEST?
A. CloudTrail
B. CloudWatch Logs Insights
C. Config
D. Lambda
Answer: B
Rationale: Logs Insights enables powerful log queries.
107.
A company wants build automation. What is BEST?
A. CodeBuild
B. EC2
C. S3
D. RDS
Answer: A
Rationale: CodeBuild compiles and tests code automatically.
108.
A company wants CI/CD automation. What is BEST?
A. CodePipeline
B. EC2
C. S3
D. RDS
Answer: A
Rationale: CodePipeline automates workflows.
109.
A company wants deployment automation. What is BEST?
A. CodeDeploy
B. EC2
C. S3
D. RDS
Answer: A
Rationale: CodeDeploy automates deployments.
110.
A company wants monitoring dashboards. What is BEST?
A. CloudWatch dashboards
B. CloudTrail
C. Config
D. Lambda
Answer: A
Rationale: Dashboards visualize metrics.
111.
A company wants centralized secrets. What is BEST?
A. Hardcode
B. Secrets Manager
C. S3
D. EC2
Answer: B
Rationale: Secrets Manager securely stores secrets.
112.
A company wants anomaly detection. What is BEST?
A. CloudTrail
B. CloudWatch anomaly detection
C. Config
D. Lambda
Answer: B
Rationale: Detects unusual metric patterns.
113.
A company wants audit logging. What is BEST?
A. CloudTrail
B. CloudWatch
C. Config
D. Lambda
Answer: A
Rationale: Logs API calls.
114.
A company wants compliance tracking. What is BEST?
A. CloudTrail
B. AWS Config
C. CloudWatch
D. Lambda
Answer: B
Rationale: Tracks compliance.
115.
A company wants event-driven architecture. What is BEST?
A. EventBridge
B. EC2
C. RDS
D. S3
Answer: A
Rationale: EventBridge routes events.
116.
A company wants scalable containers. What is BEST?
A. ECS
B. EC2
C. S3
D. RDS
Answer: A
Rationale: ECS manages containers.
117.
A company wants serverless containers. What is BEST?
A. ECS
B. Fargate
C. EC2
D. Lambda
Answer: B
Rationale: Fargate removes servers.
118.
A company wants auto scaling. What is BEST?
A. Manual
B. Auto Scaling
C. EC2
D. S3
Answer: B
Rationale: Adjusts capacity dynamically.
119.
A company wants encryption. What is BEST?
A. IAM
B. KMS
C. CloudWatch
D. Lambda
Answer: B
Rationale: KMS manages keys.
120.
A company wants resilient architecture. What is BEST?
A. Single AZ
B. Multi-AZ + Auto Scaling
C. EC2
D. S3
Answer: B
Rationale: Multi-AZ ensures redundancy and fault tolerance.
121.
A multi-account environment requires centralized CI/CD while maintaining isolation. What is BEST?
A. Single account pipeline
B. Central pipeline with cross-account IAM roles
C. EC2
D. S3
Answer: B
Rationale: Cross-account IAM roles allow a central pipeline to deploy into multiple accounts securely without sharing credentials, maintaining isolation and governance.
122.
A deployment must automatically rollback if error rate exceeds threshold. What is BEST?
A. Manual rollback
B. CodeDeploy + CloudWatch alarms
C. EC2
D. S3
Answer: B
Rationale: CloudWatch alarms integrated with CodeDeploy trigger automatic rollback when metrics breach thresholds, ensuring minimal user impact.
123.
A company wants zero-downtime database migrations. What is BEST?
A. Stop DB
B. Blue/green deployment with DB replication
C. EC2
D. S3
Answer: B
Rationale: Blue/green with replication allows seamless switchover without downtime while maintaining data consistency.
124.
A company wants automated drift correction. What is BEST?
A. Manual fixes
B. AWS Config + remediation
C. EC2
D. S3
Answer: B
Rationale: Config rules detect drift, and automated remediation ensures systems return to compliant states without manual intervention.
125.
A company wants multi-region failover with minimal downtime. What is BEST?
A. Manual
B. Route 53 failover routing
C. EC2
D. S3
Answer: B
Rationale: Route 53 failover routing directs traffic to healthy regions automatically, reducing downtime and improving availability.
126.
A company wants secure pipeline secrets. What is BEST?
A. Hardcode
B. Secrets Manager + IAM roles
C. S3
D. EC2
Answer: B
Rationale: Secrets Manager securely stores secrets, and IAM roles ensure secure access without exposing credentials.
127.
A company wants automated incident response. What is BEST?
A. Manual
B. EventBridge + Lambda
C. EC2
D. S3
Answer: B
Rationale: EventBridge can trigger Lambda functions in response to events, enabling automated incident remediation.
128.
A company wants proactive scaling. What is BEST?
A. Manual
B. Predictive Auto Scaling
C. EC2
D. S3
Answer: B
Rationale: Predictive scaling uses historical data to scale resources ahead of demand.
129.
A company needs distributed tracing for performance issues. What is BEST?
A. CloudTrail
B. X-Ray
C. Config
D. S3
Answer: B
Rationale: X-Ray provides deep insights into request paths and latency bottlenecks across services.
130.
A company wants secure API authentication. What is BEST?
A. IAM
B. Cognito
C. S3
D. EC2
Answer: B
Rationale: Cognito provides authentication, token management, and integration with API Gateway.
131.
A company wants deployment validation before traffic shift. What is BEST?
A. Manual
B. CodeDeploy lifecycle hooks
C. EC2
D. S3
Answer: B
Rationale: Lifecycle hooks allow validation tests before shifting traffic, ensuring deployment quality.
132.
A company wants centralized monitoring across regions. What is BEST?
A. CloudTrail
B. CloudWatch cross-region dashboards
C. Config
D. Lambda
Answer: B
Rationale: Cross-region dashboards provide unified visibility into metrics across environments.
133.
A company wants audit logs for compliance. What is BEST?
A. CloudTrail
B. CloudWatch
C. Config
D. Lambda
Answer: A
Rationale: CloudTrail logs API activity for auditing and compliance.
134.
A company wants automated compliance checks. What is BEST?
A. CloudTrail
B. AWS Config
C. CloudWatch
D. Lambda
Answer: B
Rationale: Config continuously evaluates resource compliance.
135.
A company wants event-driven automation. What is BEST?
A. EventBridge
B. EC2
C. RDS
D. S3
Answer: A
Rationale: EventBridge routes events and triggers workflows.
136.
A company wants scalable container deployment. What is BEST?
A. ECS
B. EC2
C. S3
D. RDS
Answer: A
Rationale: ECS manages containerized workloads at scale.
137.
A company wants serverless containers. What is BEST?
A. ECS
B. Fargate
C. EC2
D. Lambda
Answer: B
Rationale: Fargate eliminates server management.
138.
A company wants encryption at rest. What is BEST?
A. IAM
B. KMS
C. CloudWatch
D. Lambda
Answer: B
Rationale: KMS manages encryption keys securely.
139.
A company wants monitoring alerts. What is BEST?
A. CloudWatch alarms
B. CloudTrail
C. Config
D. Lambda
Answer: A
Rationale: Alarms notify issues in real time.
140.
A company wants resilient architecture. What is BEST?
A. Single instance
B. Multi-AZ + Auto Scaling
C. EC2
D. S3
Answer: B
Rationale: Multi-AZ ensures redundancy, while Auto Scaling handles load and failures dynamically.
141.
A deployment pipeline must prevent unauthorized changes to production. What is BEST?
A. IAM full access
B. CodePipeline with manual approval + IAM restrictions
C. EC2
D. S3
Answer: B
Rationale: Combining IAM least-privilege policies with CodePipeline manual approval gates ensures only authorized changes reach production, reducing risk and enforcing governance controls.
142.
A company needs to detect configuration drift automatically. What is BEST?
A. Manual checks
B. CloudFormation drift detection + alerts
C. EC2
D. S3
Answer: B
Rationale: Drift detection identifies changes outside of templates, enabling teams to maintain consistent infrastructure and quickly detect unauthorized modifications.
143.
A system must recover automatically from instance failures. What is BEST?
A. Manual restart
B. Auto Scaling with health checks
C. EC2
D. S3
Answer: B
Rationale: Auto Scaling replaces unhealthy instances automatically based on health checks, ensuring continuous availability without manual intervention.
144.
A company wants to reduce latency globally. What is BEST?
A. Single region
B. CloudFront CDN
C. EC2
D. S3
Answer: B
Rationale: CloudFront distributes content globally through edge locations, reducing latency and improving user experience.
145.
A company needs centralized security alerts. What is BEST?
A. CloudTrail
B. Security Hub
C. Config
D. Lambda
Answer: B
Rationale: Security Hub aggregates findings from multiple AWS services, providing centralized visibility and actionable insights for security posture management.
146.
A company wants real-time threat detection. What is BEST?
A. CloudTrail
B. GuardDuty
C. Config
D. Lambda
Answer: B
Rationale: GuardDuty continuously monitors for malicious activity using ML-based threat detection, improving security visibility.
147.
A company needs automated remediation of non-compliant resources. What is BEST?
A. Manual fix
B. AWS Config + remediation actions
C. EC2
D. S3
Answer: B
Rationale: Config rules detect violations and trigger remediation actions automatically, ensuring compliance without manual intervention.
148.
A company wants cross-region disaster recovery with minimal RTO. What is BEST?
A. Backup only
B. Active-active multi-region
C. EC2
D. S3
Answer: B
Rationale: Active-active deployments ensure both regions serve traffic simultaneously, enabling near-zero recovery time in case of failure.
149.
A company wants to optimize pipeline execution time. What is BEST?
A. Sequential stages
B. Parallel actions in CodePipeline
C. EC2
D. S3
Answer: B
Rationale: Parallel execution reduces pipeline duration by running independent stages simultaneously, improving deployment speed.
150.
A company wants highly resilient applications. What is BEST?
A. Single AZ
B. Multi-AZ + Auto Scaling + health checks
C. EC2
D. S3
Answer: B
Rationale: Combining Multi-AZ deployment with Auto Scaling and health checks ensures redundancy, fault tolerance, and automatic recovery from failures.