DVA-C01 (Page 15)

A company with multiple branch locations has an analytics and reporting application.Each branch office pushes a sales report to a shared Amazon S3 bucket at a predefined time each day.The company has developed an AWS Lambda function that analyzes the reports from all branch offices in a single pass.The Lambda function stores the results in a database.The company needs to start the analysis once each day at a specific time.Which solution will meet these requirements MOST cost-effectively?Read More →

A developer is building various microservices for an application that will run on Amazon EC2 instances.The developer needs to monitor the end-to-end view of the requests between the microservices and debug any issues in the various microservices.What should the developer do to accomplish these tasks?Read More →

A company uses the AWS SDK for JavaScript in the Browser to build a web application and then hosts the application on Amazon S3.The company wants the application to support 10,000 users concurrently.The company selects Amazon DynamoDB to store user preferences in a table.There is a requirement to uniquely identify users at any scale.Which solution will meet these requirements?Read More →

A developer uses server-side encryption with Amazon S3 managed encryption keys (SSE-S3) to store data in Amazon S3.The developer needs to decrypt and download the encrypted objects by using the GetObject API call.What is the LEAST amount of information that the developer must provide in the API call to meet this requirement?Read More →

A company is running its website on Amazon EC2 instances behind an Application Load Balancer (ALB).The instances run in an Amazon EC2 Auto Scaling group.A developer needs to secure the internet-facing connection with HTTPS.The developer uses AWS Certificate Manager (ACM) to issue an X.509 certificate.What should the developer do to secure the connection?Read More →

A developer is designing a serverless application for a game in which users register and log in through a web browser.The application makes requests on behalf of users to a set of AWS Lambda functions that run behind an Amazon API Gateway HTTP API.The developer needs to implement a solution to register and log in users on the application’s sign-in page.The solution must minimize operational overhead and must minimize ongoing management of user identities.Which solution will meet these requirements?Read More →

A developer needs to use Amazon DynamoDB to store customer orders.The developer’s company requires all customer data to be encrypted at rest with a key that the company generates.What should the developer do to meet these requirements?Read More →

A developer is implementing user authentication and authorization for a web application that is hosted on an Amazon EC2 instance.The developer needs to ensure that the user credentials are encrypted and secure when they are stored and transmitted.Which solution will meet these requirements?Read More →

A company has a serverless application that uses AWS Lambda functions and AWS Systems Manager parameters to store configuration data.The company moves the Lambda functions inside the VPC and into private subnets.The Lambda functions are now producing errors in their attempts to access Systems Manager parameters.Which solution will allow the Lambda functions to access Systems Manager parameters inside the VPC?Read More →

A developer needs to modify an application architecture to meet new functional requirements.Application data is stored in Amazon DynamoDB and processed for analysis in a nightly batch.The system analysts do not want to wait until the next day to view the processed data and have asked to have it available in near-real time.Which application architecture pattern would enable the data to be processed as it is received?Read More →