DVA-C01 (Page 8)

A software company is using AWS CodeBuild to build an application.The buildspec runs the application build and creates a Docker image that contains the application.The company needs to push the Docker image to Amazon Elastic Container Registry (Amazon ECR) only upon the completion of each successful build.Which solution meets these requirements?Read More →

A developer has created an AWS Lambda function that interacts with an Amazon Aurora MySQL database.The Lambda function makes queries to the database.After a performance test for the Lambda function, the database starts to show an error for too many connections.Which solution will solve this problem with the LEAST operational effort?Read More →

A company is developing a microservice that will manage customer account data in an Amazon DynamoDB table.Insert, update, and delete requests will be rare.Read traffic will be heavy.The company must have the ability to access customer data quickly by using a customer ID.The microservice can tolerate stale data.Which solution will meet these requirements with the FEWEST possible read capacity units (RCUs)?Read More →

A Development team wants to instrument their code to provide more detailed information to AWS X-Ray than simple outgoing and incoming requests.This will generate large amounts of data, so the Development team wants to implement indexing so they can filter the data.What should the Development team do to achieve this?Read More →

A developer is creating an AWS Lambda function that generates a new file each time it runs.Each new file must be checked into an AWS CodeCommit repository hosted in the same AWS account.How should the developer accomplish this?Read More →

A developer is writing an application to analyze the traffic to a fleet of Amazon EC2 instances.The EC2 instances run behind a public Application Load Balancer(ALB).An HTTP server runs on each of the EC2 instances, logging all requests to a log file.The developer wants to capture the client public IP addresses.The developer analyzes the log files and notices only the IP address of the ALB.What must the developer do to capture the client public IP addresses in the log file?Read More →

A developer wants to use AWS CodeDeploy to deploy an Amazon Elastic Container Service (Amazon ECS) service.What are the MINIMUM properties required in the ‘resources’ section of the AppSpec file for CodeDeploy to deploy the ECS service successfully?Read More →

A developer is testing an AWS Lambda function by using the AWS Serverless Application Model (AWS SAM) local CLI.The application that is implemented by theLambda function makes several AWS API calls by using the AWS software development kit (SDK).The developer wants to allow the function to make AWS API calls in a test AWS account from the developer’s laptop.What should the developer do to meet these requirements?Read More →

A company is developing a report implemented using AWS Step Functions.Amazon CloudWatch shows errors in the Step Functions task state machine.To troubleshoot each task, the state input needs to be included along with the error message in the state output.Which coding practice can preserve both the original input and the error for the state?Read More →

An application runs on multiple EC2 instances behind an ELB.Where is the session data best written so that it can be served reliably across multiple requests?Read More →