DVA-C01 (Page 7)

A developer is creating a new application for a pet store.The application will manage customer rewards points.The developer will use Amazon DynamoDB to store the data for the application.The developer needs to optimize query performance and limit partition overload before actual performance analysis.Which option should the developer use for a partition key to meet these requirements?Read More →

A company deploys a new application to AWS.The company is streaming application logs to Amazon CloudWatch Logs.The company’s development team must receive notification by email when the word “ERROR” appears in any log lines.A developer sets up an Amazon Simple Notification Service (Amazon SNS) topic and subscribes the development team to the topic.What should the developer do next to meet the requirements?Read More →

A developer is creating an Amazon DynamoDB table by using the AWS CLI.The DynamoDB table must use server-side encryption with an AWS owned encryption key.How should the developer create the DynamoDB table to meet these requirements?Read More →

A developer migrated a legacy application to an AWS Lambda function.The function uses a third-party service to pull data with a series of API calls at the end of each month.The function then processes the data to generate the monthly reports.The function has been working with no issues so far.The third-party service recently issued a restriction to allow a fixed number of API calls each minute and each day.If the API calls exceed the limit for each minute or each day, then the service will produce errors.The API also provides the minute limit and daily limit in the response header.This restriction might extend the overall process to multiple days because the process is consuming more API calls than the available limit.What is the MOST operationally efficient way to refactor the serverless application to accommodate this change?Read More →

A social media application uses the AWS SDK for JavaScript on the frontend to get user credentials from AWS Security Token Service (AWS STS).The application stores its assets in an Amazon S3 bucket.The application serves its content by using an Amazon CloudFront distribution with the origin sot to the S3 bucket.The credentials for the role that the application assumes to make the SDK calls are stored in plaintext in a JSON file within the application code.The developer needs to implement a solution that will allow the application to get user credentials without having any credentials hardcoded in the application code.Which solution will meet these requirements?Read More →

A developer is creating an AWS CloudFormation template to deploy Amazon EC2 instances across multiple AWS accounts.The developer must choose the EC2 instances from a list of approved instance types.How can the developer incorporate the list of approved instance types in the CloudFormation template?Read More →

An AWS Lambda function requires read access to an Amazon S3 bucket and requires read/write access to an Amazon DynamoDB table.The correct IAM policy already exists.What is the MOST secure way to grant the Lambda function access to the S3 bucket and the DynamoDB table?Read More →

A developer has created a Node.js web application on a local development machine.The developer wants to use AWS technology to host the website.The developer needs a solution that requires the least possible operational overhead and no code changes.Which AWS service should the developer use to meet these requirements?Read More →

A company is developing a serverless ecommerce web application.The application needs to make coordinated, all-or-nothing changes to multiple items in the company’s inventory table in Amazon DynamoDB.Which solution will meet these requirements?Read More →

A developer is modifying an existing AWS Lambda function.While checking the code, the developer notices hardcoded parameter values for an Amazon RDS for SQL Server user name, password, database, host, and port.There also are hardcoded parameter values for an Amazon DynamoDB table, an Amazon S3 bucket, and an Amazon Simple Notification Service (Amazon SNS) topic.The developer wants to securely store the parameter values outside the code in an encrypted format and wants to turn on rotation for the credentials.The developer also wants to be able to reuse the parameter values from other applications and to update the parameter values without modifying code.Which solution will meet these requirements with the LEAST operational overhead?Read More →