DVA-C01 (Page 26)

A company’s developer is creating an AWS Lambda function that will read data from an Amazon RDS database.The company’s security policies require the database credentials to be encrypted at rest by AWS Key Management Service (AWS KMS) keys.The database credentials must also be automatically rotated.The Lambda function needs to be able to read the database credentials securely.Which solution will meet these requirements?Read More →

A developer is running an application on an Amazon EC2 instance.When the application tries to read an Amazon S3 bucket, the application fails.The developer notices that the associated IAM role is missing the S3 read permission.The developer needs to give the application the ability to read the S3 bucket.Which solution will meet this requirement with the LEAST application disruption?Read More →

A developer is monitoring an application that runs on an Amazon EC2 instance.The developer has configured a custom Amazon CloudWatch metric with data granularity of 1 second.If any issues occur, the developer wants to be notified within 30 seconds by Amazon Simple Notification Service (Amazon SNS).What should the developer do to meet this requirement?Read More →

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 →