Disagreement ranking

DVA-C02 — most debated topics

Community-voted ranking of 169 topics, sorted by disagreement level. A higher dispute score means more test-takers disagree on the answer.

Full ranking

169 topics · highest disagreement first

  1. How to Log Every Lambda Invocation to an SQS Queue?

    S-grade Dispute: 56% 7 comments

  2. How to Test Updated Lambda Functions with a Subset of Users Using API Gateway?

    S-grade Dispute: 50% 19 comments

  3. How to automate S3 object tagging after delayed third-party content audit?

    S-grade Dispute: 45% 15 comments

  4. How to securely hide an API key when calling a third-party HTTP API from a browser SPA?

    S-grade Dispute: 43% 7 comments

  5. How to automatically rotate encryption keys for API keys in serverless apps with no development effort?

    S-grade Dispute: 43% 6 comments

  6. How to Prevent CloudFormation from Resetting SSM Parameter Store Values on Stack Update?

    S-grade Dispute: 42% 12 comments

  7. How to configure AWS X-Ray sampling rules for serverless applications?

    S-grade Dispute: 42% 5 comments

  8. How Does IAM Explicit Deny Affect EC2 Instance S3 Access?

    S-grade Dispute: 40% 5 comments

  9. How to deploy AWS Lambda with large dependencies?

    A-grade Dispute: 40% 3 comments

  10. Which Two Commands Deploy an Existing AWS SAM Template?

    A-grade Dispute: 40% 3 comments

  11. How to Notify Before an Imported ACM Certificate Expires?

    A-grade Dispute: 40% 3 comments

  12. How to Encrypt a Large PDF File Using AWS KMS GenerateDataKey?

    S-grade Dispute: 39% 11 comments

  13. How to configure RDS for MySQL access without long-term credentials?

    S-grade Dispute: 36% 8 comments

  14. How to enable cross-account EC2 access to a Kinesis data stream?

    S-grade Dispute: 35% 8 comments

  15. How to notify the QA team on new AWS CloudFormation deployments in a specific environment?

    S-grade Dispute: 33% 6 comments

  16. How to Create an Automated CI/CD Pipeline with AWS Copilot and CodeCommit?

    S-grade Dispute: 33% 8 comments

  17. How to configure credential caching for WebSocket APIs?

    A-grade Dispute: 33% 4 comments

  18. How to Update Lambda Code in CloudFormation When the S3 Zip Changes?

    A-grade Dispute: 33% 3 comments

  19. How to perform a canary release for an AWS Lambda function behind API Gateway?

    S-grade Dispute: 31% 7 comments

  20. How to rotate RDS credentials with zero downtime using AWS Secrets Manager?

    S-grade Dispute: 31% 10 comments

  21. How to find slow Lambda executions across all functions?

    S-grade Dispute: 30% 8 comments

  22. How to Notify the Security Team 90 Days Before an Imported ACM Certificate Expires?

    S-grade Dispute: 29% 4 comments

  23. How to Resolve Duplicate SQS Message Processing in Lambda Cost-Effectively?

    S-grade Dispute: 27% 7 comments

  24. How to Enable Directory Index Access in CloudFront with Private S3 Origin?

    S-grade Dispute: 27% 9 comments

  25. How to use a 15 GB ML library across multiple AWS Lambda functions?

    S-grade Dispute: 25% 9 comments

  26. How to encrypt Lambda environment variables using AWS KMS?

    S-grade Dispute: 25% 6 comments

  27. How to transfer expired DynamoDB items to S3 with least operational overhead?

    S-grade Dispute: 25% 7 comments

  28. How to Dynamically Deploy ECS Application Parameters Without Downtime Using AWS AppConfig?

    S-grade Dispute: 25% 5 comments

  29. How to scale a Kinesis data stream for peak traffic most cost-effectively?

    A-grade Dispute: 25% 3 comments

  30. How to optimize Lambda RDS connection performance?

    A-grade Dispute: 25% 3 comments

  31. How to notify failed DynamoDB sales above a price threshold with least effort?

    S-grade Dispute: 23% 7 comments

  32. How to Roll Back an AWS Lambda Function with Minimal User Impact?

    S-grade Dispute: 20% 10 comments

  33. Which Elastic Beanstalk deployment policy minimizes impact and maximizes availability?

    A-grade Dispute: 20% 3 comments

  34. Which S3 encryption type prevents third-party access to uploaded documents?

    A-grade Dispute: 20% 4 comments

  35. How to query DynamoDB with same partition key and different sort key?

    S-grade Dispute: 18% 5 comments

  36. How to find the source of increased response time in a Lambda function integrated with API Gateway?

    S-grade Dispute: 17% 6 comments

  37. How to Efficiently Filter DynamoDB Records by Non-Key Attribute?

    A-grade Dispute: 17% 3 comments

  38. Which AWS KMS Key Type Supports Immediate Deletion?

    A-grade Dispute: 17% 4 comments

  39. How to Configure a Staging Environment for AWS Lambda Using Weighted Aliases?

    A-grade Dispute: 17% 3 comments

  40. How to enable cross-account DynamoDB access from EC2?

    S-grade Dispute: 15% 5 comments

  41. How to restrict direct S3 access to CloudFront only?

    S-grade Dispute: 14% 7 comments

  42. How to resolve AccessDeniedException when Lambda pushes events to EventBridge?

    S-grade Dispute: 14% 6 comments

  43. How to measure custom Lambda throughput excluding initialization in CloudWatch?

    S-grade Dispute: 14% 7 comments

  44. How to schedule a daily Lambda invocation cost-effectively?

    S-grade Dispute: 14% 6 comments

  45. How to Test AWS Lambda Locally with S3 Events Using SAM CLI?

    S-grade Dispute: 14% 5 comments

  46. How to Securely Store Encrypted Credentials for AWS Lambda?

    S-grade Dispute: 14% 7 comments

  47. How to securely allow authenticated users to download S3 objects from an EC2-hosted application?

    S-grade Dispute: 13% 7 comments

  48. How to limit Lambda concurrency from an SQS queue?

    S-grade Dispute: 12% 8 comments

  49. Which Partition Key Optimizes DynamoDB Performance for a Pet Store Rewards App?

    A-grade Dispute: 12% 4 comments

  50. What is the most cost-effective way to store video files for SQS-based processing?

    A-grade Dispute: 12% 4 comments

  51. How to prevent S3 event notifications from invoking the wrong Lambda function?

    S-grade Dispute: 11% 6 comments

  52. How to optimize CodeBuild performance with caching?

    A-grade Dispute: 10% 4 comments

  53. How to reference a plaintext SSM Parameter Store value in CloudFormation?

    S-grade Dispute: 9% 7 comments

  54. How to reference API Gateway endpoint in Step Functions via CloudFormation?

    S-grade Dispute: 8% 8 comments

  55. How to Isolate SAM Deployments to Avoid Impacting Pre-Production?

    S-grade Dispute: 8% 6 comments

  56. How to Mock Third-Party API Integrations in AWS API Gateway?

    S-grade Dispute: 8% 7 comments

  57. Which DynamoDB attribute should be used as a partition key for well-distributed records?

    S-grade Dispute: 7% 7 comments

  58. How to Avoid Third-Party Rate-Limiting Errors in AWS Lambda?

    A-grade Dispute: 7% 4 comments

  59. How to Prevent AWS Lambda Timeouts on SQS Event Sources?

    S-grade Dispute: 6% 5 comments

  60. How to Deploy ACM SSL Certificates to ALBs Across Multiple AWS Regions?

    S-grade Dispute: 6% 7 comments

  61. How to Configure API Gateway Stage-Specific Third-Party Endpoints?

    A-grade Dispute: 0% 4 comments

  62. How to deploy incremental changes in AWS serverless applications?

    A-grade Dispute: 0% 5 comments

  63. How to Mock API Gateway Endpoints for Frontend Development?

    A-grade Dispute: 0% 4 comments

  64. Why does an EKS application not connect to new backend resources after migration?

    A-grade Dispute: 0% 3 comments

  65. How to securely grant EC2 instances least-privilege access to multiple S3 buckets?

    A-grade Dispute: 0% 3 comments

  66. How to securely store and auto-rotate RDS credentials on EC2?

    A-grade Dispute: 0% 5 comments

  67. How to manage Amazon RDS database users consistently across multiple AWS accounts?

    A-grade Dispute: 0% 3 comments

  68. How to Mock API Gateway Responses Without a Backend?

    A-grade Dispute: 0% 3 comments

  69. How to prevent out-of-order updates with Amazon SQS FIFO queues?

    A-grade Dispute: 0% 4 comments

  70. How to encrypt EBS volumes for EC2 without impacting performance?

    A-grade Dispute: 0% 3 comments

  71. How to Implement Weighted Traffic Routing for AWS Lambda Versions?

    A-grade Dispute: 0% 4 comments

  72. How to enable frontend development while backend API is not ready using API Gateway?

    A-grade Dispute: 0% 5 comments

  73. How to Deploy Containerized Applications on AWS with Least Operational Effort?

    A-grade Dispute: 0% 7 comments

  74. How to automate DynamoDB item expiration and archival with minimal code?

    A-grade Dispute: 0% 5 comments

  75. How to implement user sign-in for a serverless application with minimal operational overhead?

    A-grade Dispute: 0% 5 comments

  76. How to speed up AWS Lambda deployment for large dependencies?

    A-grade Dispute: 0% 6 comments

  77. Which HTTP Error Should API Gateway Return for Invalid Login Credentials?

    A-grade Dispute: 0% 4 comments

  78. Which STS API Supports MFA for Cross-Account S3 Access?

    A-grade Dispute: 0% 6 comments

  79. How to Securely Grant EC2 Access to S3?

    A-grade Dispute: 0% 3 comments

  80. How to Retry a Lambda Task Once in Step Functions and Stop on Other Errors?

    A-grade Dispute: 0% 4 comments

  81. How to Pass a CloudFormation Log Group Name to an AWS Lambda Function?

    A-grade Dispute: 0% 6 comments

  82. How to Create a DynamoDB Table with an AWS-Owned Encryption Key?

    A-grade Dispute: 0% 6 comments

  83. How to Implement Cross-Region Distributed Tracing with AWS X-Ray?

    A-grade Dispute: 0% 4 comments

  84. How to Prioritize SQS Queues for Lambda with Max Concurrency?

    A-grade Dispute: 0% 6 comments

  85. How to Encrypt and Automatically Rotate Sensitive AWS Credentials per Environment?

    A-grade Dispute: 0% 6 comments

  86. Why Are Duplicate Email Messages Sent During High Traffic with SQS, Lambda, and SES?

    A-grade Dispute: 0% 4 comments

  87. Which S3 Storage Class Meets Minute Retrieval and 7-Year Retention Cost-Effectively?

    A-grade Dispute: 0% 5 comments

  88. How to Cache Dynamic RDS Data for Low-Latency Reads?

    A-grade Dispute: 0% 10 comments

  89. How to Trace Multi-Service Lambda Performance Without Code Changes?

    A-grade Dispute: 0% 5 comments

  90. Migrating Kubernetes Workloads and NFS Storage to AWS

    A-grade Dispute: 0% 5 comments

  91. How to Route Asynchronous Lambda Invocation Errors?

    A-grade Dispute: 0% 5 comments

  92. Which AWS Service Manages Feature Flags with Safe Deployment?

    A-grade Dispute: 0% 4 comments

  93. How to Implement Manual Approval in AWS CodePipeline?

    A-grade Dispute: 0% 4 comments

  94. How to Automatically Retry Timeout Errors in AWS Step Functions?

    A-grade Dispute: 0% 6 comments

  95. Deploying Serverless Apps Across Multiple Environments with Minimal Effort?

    A-grade Dispute: 0% 4 comments

  96. Handling Failed Lambda Invocations with Minimal Overhead?

    A-grade Dispute: 0% 4 comments

  97. How to Immediately Alert on Non-CloudFormation IAM Role Creation?

    A-grade Dispute: 0% 5 comments

  98. How to Deploy AWS SAM Templates Using CloudFormation?

    A-grade Dispute: 0% 8 comments

  99. How to Capture Failed AWS Lambda Async Events?

    A-grade Dispute: 0% 5 comments

  100. How to Throttle Third-Party API Calls in Serverless Architecture?

    A-grade Dispute: 0% 4 comments

  101. How to Securely Store and Rotate Database Credentials on AWS?

    A-grade Dispute: 0% 6 comments

  102. How does DynamoDB TTL prevent throttling during data cleanup?

    A-grade Dispute: 0% 5 comments

  103. How to Run Hourly Batch Containers on ECS with Least Management?

    A-grade Dispute: 0% 6 comments

  104. How to Automatically Remove Old DynamoDB User Responses with Least Effort?

    A-grade Dispute: 0% 6 comments

  105. How to Reference an S3 Deployment Package for Lambda in CloudFormation?

    A-grade Dispute: 0% 4 comments

  106. How to Ensure All Services Appear in AWS X-Ray Service Map?

    A-grade Dispute: 0% 4 comments

  107. How to securely store and pass API keys to a containerized application on AWS?

    A-grade Dispute: 0% 5 comments

  108. How to Improve DynamoDB Query Performance for Non-Key Attributes?

    A-grade Dispute: 0% 6 comments

  109. Least Effort Way to Rotate AWS Secrets for EC2 Startup?

    A-grade Dispute: 0% 6 comments

  110. How to Expose Lambda PROD and DEV Aliases Through API Gateway Stages?

    A-grade Dispute: 0% 4 comments

  111. How should you store S3 objects to support high request rates?

    A-grade Dispute: 0% 3 comments

  112. How to get email notifications when ERROR appears in CloudWatch Logs?

    A-grade Dispute: 0% 4 comments

  113. How to Encrypt SQS Queue Data at Rest?

    A-grade Dispute: 0% 4 comments

  114. How to Start CodePipeline Build When a New Dependency JAR Is Available?

    A-grade Dispute: 0% 5 comments

  115. How to store failed Lambda asynchronous invocations with least overhead?

    A-grade Dispute: 0% 4 comments

  116. How to Preview Changes Before Updating a CloudFormation Stack

    A-grade Dispute: 0% 3 comments

  117. Which AWS Services Support Atomic Multi-Item Transactions?

    A-grade Dispute: 0% 3 comments

  118. Why Does AWS CLI Return Access Denied After SSO Configuration?

    A-grade Dispute: 0% 3 comments

  119. How to securely store an external API key in AWS Lambda with full KMS control?

    A-grade Dispute: 0% 5 comments

  120. How to Capture Client Public IP Addresses Behind an ALB?

    A-grade Dispute: 0% 3 comments

  121. What Is the Most Secure Way to Get Temporary Cross-Account Access in AWS?

    A-grade Dispute: 0% 3 comments

  122. How to Securely Grant EC2 Application Access to S3?

    A-grade Dispute: 0% 3 comments

  123. How to Secure Public Website with OIDC Authentication Without Code Changes?

    A-grade Dispute: 0% 6 comments

  124. How to Implement Selective Feature Activation in AWS Web Applications?

    A-grade Dispute: 0% 3 comments

  125. How to Reference Cross-Stack Resources in AWS CloudFormation?

    A-grade Dispute: 0% 5 comments

  126. How to Update EC2 IAM Role Permissions with Least Disruption?

    A-grade Dispute: 0% 3 comments

  127. How to Configure CloudFront for Encryption in Transit?

    A-grade Dispute: 0% 5 comments

  128. How to Encrypt an Existing CloudWatch Log Group with KMS?

    A-grade Dispute: 0% 4 comments

  129. How to Concurrently Invoke Independent Lambda Functions on an Event?

    A-grade Dispute: 0% 3 comments

  130. How to Support Alternative DynamoDB Access Patterns Efficiently?

    A-grade Dispute: 0% 3 comments

  131. How to filter SNS messages for Lambda with least effort?

    A-grade Dispute: 0% 5 comments

  132. How to ensure session persistence during EC2 failure?

    A-grade Dispute: 0% 3 comments

  133. How to enable AWS X-Ray tracing for EC2 microservices?

    A-grade Dispute: 0% 3 comments

  134. Optimizing Lambda performance using /tmp directory caching

    A-grade Dispute: 0% 4 comments

  135. How to fix API Gateway 403 errors for new API keys?

    A-grade Dispute: 0% 3 comments

  136. How to detect manual changes to CloudFormation stack resources?

    A-grade Dispute: 0% 3 comments

  137. How to resolve CloudFront serving outdated S3 content?

    A-grade Dispute: 0% 4 comments

  138. How to fix CloudFormation DELETE_FAILED for IAM Roles?

    A-grade Dispute: 0% 3 comments

  139. How to sort DynamoDB query results in descending order?

    A-grade Dispute: 0% 4 comments

  140. How to collect failed Lambda async events?

    A-grade Dispute: 0% 4 comments

  141. How to configure traffic shifting between Lambda versions?

    A-grade Dispute: 0% 3 comments

  142. How to search serverless logs with least operational overhead?

    A-grade Dispute: 0% 3 comments

  143. How to access AWS AppConfig data in Lambda with least effort?

    A-grade Dispute: 0% 4 comments

  144. How to provide Lambda access to shared data and libraries?

    A-grade Dispute: 0% 4 comments

  145. How to reprocess messages from an SQS dead-letter queue?

    A-grade Dispute: 0% 4 comments

  146. How to configure S3 read access in AWS SAM?

    A-grade Dispute: 0% 3 comments

  147. How to trigger AWS CodePipeline on source code changes?

    A-grade Dispute: 0% 4 comments

  148. How to Fix a 502 Bad Gateway Error from API Gateway and Lambda?

    A-grade Dispute: 0% 4 comments

  149. Which AWS Service Traces End-to-End Requests Across Microservices on EC2?

    A-grade Dispute: 0% 4 comments

  150. How Do You Get Notified When EC2 CPU Utilization Exceeds 80%?

    A-grade Dispute: 0% 3 comments

  151. Why Does API Gateway Return 403 When Lambda Sends a User ID to a Cognito Authorizer?

    A-grade Dispute: 0% 4 comments

  152. What Happens to an S3 Event When Lambda Times Out with Default Settings?

    A-grade Dispute: 0% 3 comments

  153. Which S3 Storage Classes Provide Instant Access Then 10-Minute Retrievals?

    A-grade Dispute: 0% 3 comments

  154. Why doesn't CloudFront show updated S3 files after a CodeBuild deployment?

    A-grade Dispute: 0% 3 comments

  155. How to Test CloudFormation Templates in Primary and DR Regions with CodePipeline?

    A-grade Dispute: 0% 3 comments

  156. How to Make a Lambda Production Alias Available Through API Gateway?

    A-grade Dispute: 0% 3 comments

  157. Which CI/CD solution provisions multi-account test infrastructure and runs integration tests?

    A-grade Dispute: 0% 3 comments

  158. How to configure a built-in JWT authorizer on an Amazon API Gateway HTTP API?

    A-grade Dispute: 0% 4 comments

  159. How to Orchestrate AWS Lambda Functions in Sequence with Least Operational Overhead?

    A-grade Dispute: 0% 3 comments

  160. How to Monitor SNS FIFO Topic Notification Rate and Latency with AWS X-Ray?

    A-grade Dispute: 0% 3 comments

  161. How to Implement Mobile App Authentication with Amazon Cognito User Pools?

    A-grade Dispute: 0% 3 comments

  162. How to Increase Elasticity for Spiky POS Transaction Writes

    S-grade Dispute: 0% 51 comments

  163. Cross-Account EC2 Lifecycle Events to One SQS Queue

    S-grade Dispute: 0% 29 comments

  164. Preventing Cross-Environment Lambda Invocations via Resource Policies

    S-grade Dispute: 0% 40 comments

  165. Which design preserves first-order seat priority in serverless app

    S-grade Dispute: 0% 7 comments

  166. How to Canary-Test Optimized Lambda Code Through API Gateway?

    S-grade Dispute: 0% 10 comments

  167. Manual Approval Before Production in CodePipeline

    S-grade Dispute: 0% 7 comments

  168. Which AWS Services Give ACID Transactions for Item Trades?

    A-grade Dispute: 0% 4 comments

  169. Caching RDS Read Records Without Schema Changes

    A-grade Dispute: 0% 3 comments

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