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Topics include migrating credentials securely using Systems Manager Parameter Store and Secrets Manager, enabling near real-time user comments with WebSocket APIs, implementing sign-up/sign-in with Amazon Cognito and event logging via API Gateway/Lambda, restricting API Gateway access across accounts, granting correct Lambda execution permissions, configuring AWS KMS envelope encryption for confidential data, and evaluating ElastiCache lazy loading design approaches.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":20,"@type":76,"position":81},"https://docshare.wps.com/document/exam/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/aws-certified-developer-associate-sample-questions-exam-preparation/317376/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/aws-certified-developer-associate-sample-questions-exam-preparation/317376.png","ImageObject",300,407,{"name":92,"@type":93},"Arica Lee","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-27","2026-09-20",true,{"@type":102,"interactionType":103,"userInteractionCount":52},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"Which AWS service should store and automatically rotate MySQL database credentials during migration to RDS for MySQL?","Question",{"text":112,"@type":113},"Use AWS Systems Manager Parameter Store with automatic rotation, or use AWS Secrets Manager configured for automatic rotation.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How can a developer implement near real-time user comment posting and feedback?",{"text":117,"@type":113},"Use Amazon API Gateway WebSocket API with an AWS Lambda backend and DynamoDB as the data store, or use AWS AppSync with DynamoDB.",{"name":119,"@type":110,"acceptedAnswer":120},"What combination is needed to add sign-up/sign-in and log sign-in events to a custom analytics solution?",{"text":121,"@type":113},"Use Amazon Cognito for sign-up and sign-in, and invoke an Amazon API Gateway method or an AWS Lambda function to make the analytics API call when the user is authenticated.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},317376,1790027638,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":19,"category_name":20,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":52,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":24,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":143,"read_time":144,"preview_page_count":4},8796096645457,"https://ap-avatar.wpscdn.com/avatar/800003749518d68ffe3?x-image-process=image/resize,m_fixed,w_180,h_180&k=1779345340919836971","1) A company is migrating a legacy application to Amazon EC2 instances. The application uses a username and password that are stored in the source code to connect to a MySQL database. The company will migrate the database to an Amazon RDS for MySQL DB instance. As part of the migration, the company needs to implement a secure way to store and automatically rotate the database credentials.  \nWhich solution will meet these requirements?  \nA) Store the database credentials in environment variables in an Amazon Machine Image (AMI) . Rotate the credentials by replacing the AMI.  \nB) Store the database credentials in AWS Systems Manager Parameter Store. Configure Parameter Store to automatically rotate the credentials.  \nC) Store the database credentials in environment variables on the EC2 instances. Rotate the credentials by relaunching the EC2 instances.  \nD) Store the database credentials in AWS Secrets Manager. Configure Secrets Manager to automatically rotate the credentials.  \n2) A developer is creating a web application that must give users the ability to post comments and receive feedback in near real time.  \nWhich solutions will meet these requirements? (Select TWO.)  \nA) Create an AWS AppSync schema and corresponding APIs. Use an Amazon DynamoDB table as the data store.  \nB) Create a WebSocket API in Amazon API Gateway. Use an AWS Lambda function as the backend. Use an Amazon DynamoDB table as the data store.  \nC) Create an AWS Elastic Beanstalk application that is backed by an Amazon RDS database. Configure the application to allow long-lived TCP/IP sockets.  \nD) Create a GraphQL endpoint in Amazon API Gateway. Use an Amazon DynamoDB table as the data store.  \nE) Establish WebSocket connections to Amazon CloudFront. Use an AWS Lambda function as the CloudFront distribution’s origin. Use an Amazon Aurora DB cluster as the data store.  \n3) A developer is adding sign-up and sign-in functionality to an application. The application must make an API call to a custom analytics solution to log user sign-in events.  \nWhich combination of actions should the developer perform to meet these requirements? (Select TWO.)  \nA) Use Amazon Cognito to provide the sign-up and sign-in functionality.  \nB) Use AWS Identity and Access Management (IAM) to provide the sign-up and sign-in functionality.  \nC) Configure an AWS Config rule to make the API call when a user is authenticated.  \nD) Invoke an Amazon API Gateway method to make the API call when a user is authenticated.  \nE) Invoke an AWS Lambda function to make the API call when a user is authenticated.  \n4) A company is using Amazon API Gateway for its REST APIs in an AWS account. A developer wants to allow only IAM users from another AWS account to access the APIs.  \nWhich combination of steps should the developer take to meet these requirements? (Select TWO.)  \nA) Create an IAM permission policy. Attach the policy to each IAM user. Set the method authorization type for the APIs to AWS_IAM. Use Signature Version 4 to sign the API requests.  \nB) Create an Amazon Cognito user pool. Add each IAM user to the user pool. Set the method authorization type for the APIs to COGNITO_USER_POOLS. Authenticate by using the IAM credentials in Amazon Cognito. Add the ID token to the request headers.  \nC) Create an Amazon Cognito identity pool. Add each IAM user to the identity pool. Set the method authorization type for the APIs to COGNITO_USER_POOLS. Authenticate by using the IAM credentials in Amazon Cognito. Add the access token to the request headers.  \nD) Create a resource policy for the APIs to allow access for each IAM user only.  \nE) Create an Amazon Cognito authorizer for the APIs to allow access for each IAM user only. Set the method authorization type for the APIs to COGNITO_USER_POOLS.  \n5) A developer is building a new application that transforms text files to .pdf files. A separate application writes the text files to a source Amazon S3 bucket. The new application must read the files as the","cbCaithLVPcNw7lJ","https://ap.wps.com/l/cbCaithLVPcNw7lJ","pdf",182966,"English","# Secure credentials rotation for MySQL to Amazon RDS\n## Use Systems Manager Parameter Store or Secrets Manager\n# Near real-time comments with WebSockets and AppSync\n## Choose the correct real-time API options\n# Sign-up/sign-in with analytics event logging\n## Cognito with API Gateway and Lambda triggers\n# Cross-account access control for API Gateway REST APIs\n## IAM policies and resource policies options\n# Lambda permissions for reading new S3 objects\n## Execution role with required IAM policy\n# Confidential database encryption with KMS envelope encryption\n## Correct storage of data keys and ciphertext\n# ElastiCache for Memcached lazy loading pseudocode\n## Selecting the best pseudocode example","[{\"question\":\"Which AWS service should store and automatically rotate MySQL database credentials during migration to RDS for MySQL?\",\"answer\":\"Use AWS Systems Manager Parameter Store with automatic rotation, or use AWS Secrets Manager configured for automatic rotation.\"},{\"question\":\"How can a developer implement near real-time user comment posting and feedback?\",\"answer\":\"Use Amazon API Gateway WebSocket API with an AWS Lambda backend and DynamoDB as the data store, or use AWS AppSync with DynamoDB.\"},{\"question\":\"What combination is needed to add sign-up/sign-in and log sign-in events to a custom analytics solution?\",\"answer\":\"Use Amazon Cognito for sign-up and sign-in, and invoke an Amazon API Gateway method or an AWS Lambda function to make the analytics API call when the user is authenticated.\"}]","AWS Certified Developer Associate - Sample Questions - Exam Preparation | PDF",1789932424,13]