Developer Associate (Page 21)

A company’s infrastructure team is using AWS CloudFormation to deploy common infrastructure resources such as VPCs, subnets, Amazon RDS DB cluster endpoints, and Amazon DynamoDB tables for other teams to use.The CloudFormation templates also create AWS Systems Manager Parameter Store parameters to store information about these resources for application developers.The parameters include elements such as RDS DB cluster endpoints for clusters that the templates create.A developer creates a CloudFormation template that includes an AWS Lambda function that reads the SSM parameter value to access RDS DB cluster endpoints.The Lambda function has reserved concurrency configured to match the value of the Parameter Store maximum throughput (transactions per second) quota for the account and the AWS Region that hosts the account.The developer wants to prepare for a potential load increase.The developer expects the Lambda function’s concurrent invocation rate to be two times more than the Parameter Store maximum throughput quota value.Which solution will prepare for the load increase MOST cost-effectively?Read More →

A developer needs to launch a new Amazon EC2 instance by using the AWS CLI.Which AWS CLI command should the developer use to meet this requirement?Read More →

A developer is creating a serverless application that uses an AWS Lambda function The developer will use AWS CloudFormation to deploy the application The application will write logs to Amazon CloudWatch Logs.The developer has created a log group in a CloudFormation template for the application to use.The developer needs to modify the CloudFormation template to make the name of the log group available to the application at runtime.Which solution will meet this requirement?Read More →

An application uses AWS X-Ray to generate a large amount of trace data on an hourly basis.A developer wants to use filter expressions to limit the returned results through user-specified custom attributes.How should the developer use filter expressions to filter the results in X-Ray?Read More →

A company stores all personally identifiable information (PII) in an Amazon DynamoDB table named PII in Account A.Developers are working on an application that is running on Amazon EC2 instances in Account B.The application in Account B requires access to the PII table.An administrator in Account A creates an IAM role named AccessPII that has permission to access the PII table.The administrator also creates a trust policy that specifies Account B as a principal that can assume the role.Which combination of steps should the developers take in Account B to allow their application to access the PII table? (Choose two.)Read More →

A developer built an application that calls an external API to obtain data, processes the data, and saves the result to Amazon S3.The developer built a container image with all of the necessary dependencies to run the application as a container.The application runs locally and requires minimal CPU and RAM resources.The developer has created an Amazon ECS cluster.The developer needs to run the application hourly in Amazon Elastic Container Service (Amazon ECS).Which solution will meet these requirements with the LEAST amount of infrastructure management overhead?Read More →

A Developer is working on a serverless project based in Java.Initial testing shows a cold start takes about 8 seconds on average for AWS Lambda functions.What should the Developer do to reduce the cold start time? (Choose two.)Read More →

A company uses Amazon Simple Queue Service (Amazon SQS) to decouple its microservices architecture.Some messages in an SQS queue contain sensitive information.A developer must implement a solution that encrypts all the data at rest.Which solution will meet this requirement?Read More →

A developer has created a web API that uses Amazon Elastic Container Service (Amazon ECS) and an Application Load Balancer (ALB).An Amazon CloudFront distribution uses the API as an origin for web clients.The application has received millions of requests with a JSON Web Token (JWT) that is not valid in the authorization header.The developer has scaled out the application to handle the unauthenticated requests.What should the developer do to reduce the number of unauthenticated requests to the API?Read More →

A developer is deploying an application in the AWS Cloud by using AWS CloudFormation.The application will connect to an existing Amazon RDS database.The hostname of the RDS database is stored in AWS Systems Manager Parameter Store as a plaintext value.The developer needs to incorporate the database hostname into the CloudFormation template to initialize the application when the stack is created.How should the developer reference the parameter that contains the database hostname?Read More →