Developer Associate (Page 15)

A company is working on a new serverless application.A developer needs to find an automated way to deploy AWS Lambda functions and the dependent infrastructure with minimum coding effort.The application also needs to be reliable.Which method will meet these requirements with the LEAST operational overhead?Read More →

A company’s developer is building a static website to be deployed in Amazon S3 for a production environment.The website integrates with an Amazon Aurora PostgreSQL database by using an AWS Lambda function.The website that is deployed to production will use a Lambda alias that points to a specific version of the Lambda function.The company must rotate the database credentials every 2 weeks.Lambda functions that the company deployed previously must be able to use the most recent credentials.Which solution will meet these requirements?Read More →

A developer is creating a web application for a school that stores data in Amazon DynamoDB.The ExamScores table has the following attributes: student_id, subject_name, and top_score.Each item in the ExamScores table is identified with student_id as the partition key and subject_name as the sort key.The web application needs to display the student _id for the top scores for each school subject.The developer needs to increase the speed of the queries to retrieve the student_id for the top scorer for each school subject.Which solution will meet these requirements?Read More →

A company hosts a web application that writes to an Amazon DynamoDB table.Application users frequently observe and report errors.The development team examines Amazon CloudWatch logs and frequently sees the following error:400 Bad Request ProvisionedThroughputExceededExceptionWhat is the cause of this error?Read More →

A company hosts a client-side web application for one of its subsidiaries on Amazon S3.The web application can be accessed through Amazon CloudFront from https://www.example.com.After a successful rollout, the company wants to host three more client-side web applications for its remaining subsidiaries on three separate S3 buckets.To achieve this goal, a developer moves all the common JavaScript files and web fonts to a central S3 bucket that serves the web applications.However, during testing, the developer notices that the browser blocks the JavaScript files and web fonts.What should the developer do to prevent the browser from blocking the JavaScript files and web fonts?Read More →

A developer is building an application integrating an Amazon API Gateway with an AWS Lambda function.When calling the API.the developer receives the following error:Wed Nov 08 01:13:00 UTC 2017 : Method completed with status: 502What should the developer do to resolve the error?Read More →

An Amazon Kinesis Data Firehose delivery stream is receiving customer data that contains personally identifiable information.A developer needs to remove pattern-based customer identifiers from the data and store the modified data in an Amazon S3 bucket.What should the developer do to meet these requirements?Read More →

A company is using AWS CloudFormation templates to deploy AWS resources.The company needs to update one of its AWS CloudFormation stacks.What can the company do to find out how the changes will impact the resources that are running?Read More →

A developer is designing a serverless application with two AWS Lambda functions to process photos.One Lambda function stores objects in an Amazon S3 bucket and stores the associated metadata in an Amazon DynamoDB table.The other Lambda function fetches the objects from the S3 bucket by using the metadata from the DynamoDB table.Both Lambda functions use the same Python library to perform complex computations and are approaching the quota for the maximum size of zipped deployment packages.What should the developer do to reduce the size of the Lambda deployment packages with the LEAST operational overhead?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 →