DVA-C02 Exam Questions

A developer is creating a solution to track an account's Amazon S3 buckets over time. The developer has created an AWS Lambda function that will run on a schedule. The function wil...

A company uses AWS to run its learning management system (LMS) application. The application runs on Amazon EC2 instances behind an Application Load Balancer (ALB). The application'...

A developer hosts a static website on Amazon S3 and connects the website to an Amazon CloudFront distribution. The website uses a custom domain name that points to the CloudFront U...

A developer is working on an ecommerce application that stores data in an Amazon RDS for MySQL cluster. The developer needs to implement a caching layer for the application to retr...

A gaming application stores scores for players in an Amazon DynamoDB table that has four attributes: user_id, user_name, user_score, and user_rank. The users are allowed to update...

A developer is creating a database of products. Queries for frequently accessed products must have retrieval times of microseconds. To ensure data consistency, the application cach...

A developer is creating a script to automate the deployment process for a serverless application. The developer wants to use an existing AWS Serverless Application Model (AWS SAM)...

A developer adds new dependencies to an existing AWS Lambda function. The developer cannot deploy the Lambda function because the unzipped deployment package exceeds the maximum si...

A developer is working on a project that requires regular updates to a web application's backend code. The code is stored in AWS CodeCommit. Company policy states that all code mus...

A developer is building an application on AWS. The application has an Amazon API Gateway API that sends requests to an AWS Lambda function. The API is experiencing increased latenc...

A developer is creating a web application to upload and store private data. The application will encrypt private data and then will upload the data to an Amazon S3 bucket. The deve...

A developer has an application that uses AWS Lambda functions and AWS CloudFormation templates. Usage of the application has increased. As a result, the Lambda functions are encoun...

A developer is using an AWS Lambda function to process data. The developer needs to extract custom metrics about processing times from the Lambda logs. The developer needs to analy...

A developer needs to fix an AWS CodeDeploy deployment that failed. During the failed deployment, the developer received the following error message: "The overall deployment failed...

A company is developing a serverless application that requires storage of sensitive API keys as environment variables for various services. The application requires the automatic r...

A developer built an application that uses AWS Lambda functions to process images. The developer wants to improve image processing times throughout the day. The developer needs to...

An application stores user data in Amazon S3 buckets in multiple AWS Regions. A developer needs to implement a solution that analyzes the user data in the S3 buckets to find sensit...

An application ingests data from an Amazon Kinesis data stream. The shards in the data stream are set for normal traffic. During tests for peak traffic, the application ingests dat...

A developer is building an application that uses an AWS Lambda function to process data. The application requires minimum latency. The Lambda function must have predictable functio...

A company has implemented a pipeline in AWS CodePipeline. The company is using a single AWS account and does not use AWS Organizations. The company needs to test its AWS CloudForma...

A company has an Amazon API Gateway REST API that integrates with an AWS Lambda function. The API's development stage references a development alias of the Lambda function named de...

A developer is implementing a serverless application by using AWS CloudFormation to provision Amazon S3 web hosting. Amazon API Gateway, and AWS Lambda functions. The Lambda functi...

A developer published a change to a new version of an AWS Lambda function. To test the change, the developer must route 50% of the traffic to the new version and 60% of the traffic...

A developer is building an application that processes a stream of user-supplied data. The data stream must be consumed by multiple Amazon EC2 based processing applications in paral...

An application is experiencing performance issues based on increased demand. This increased demand is on read-only historical records pulled from an Amazon RDS-hosted database with...

A developer is using AWS CloudFormation to deploy an AWS Lambda function. The developer needs to set the Lambda function's timeout value based on the environment parameter of the t...

A company's AWS accounts are in an organization in AWS Organizations. An application in Account A uses environment variables that are stored as parameters in AWS Systems Manager Pa...

In a move toward using microservices, a company's management team has asked all development teams to build their services so that API requests depend only on that service's data st...

A developer compiles an AWS Lambda function and packages the result as a .zip file. The developer uses the Functions page on the Lambda console to attempt to upload the local packa...

A company runs an application on Amazon EC2 instances in an Auto Scaling group. The application experiences variable loads throughout each day. The company needs to collect detaile...

A developer is creating an application that uses an Amazon DynamoDB table. The developer needs to develop code that reads all records that were added to the table during the previo...

A company is launching a feature that uses an HTTP API built with Amazon API Gateway and AWS Lambda. An API Gateway endpoint performs several independent tasks that run in a Lambda...

A company has an application that uses an Amazon Cognito user pool for authentication. A developer needs to add a new REST API that will use the user pool to authenticate requests....

A developer is testing an AWS Lambda function that has an event source of an Amazon Simple Queue Service (Amazon SQS) queue. The developer notices that some of the messages the Lam...

A developer created reusable code that several AWS Lambda functions need to use. The developer bundled the code into a zip archive. The developer needs to deploy the code to AWS an...

A team has an Amazon API Gateway REST API that consists of a single resource and a GET method that is backed by an AWS Lambda integration. A developer makes a change to the Lambda...

A developer manages encryption keys in AWS Key Management Service (AWS KMS). The developer must ensure that all encryption keys can be deleted immediately when the keys are no long...

A company has an ecommerce application. The application's API sends order data to an Amazon Simple Queue Service (Amazon SOS) queue. A developer needs to modify the application to...

An application interacts with Amazon Aurora to store and track customer information. The primary database is set up with multiple read replicas for improving the performance of the...

A company runs continuous integration/continuous delivery (CI/CD) pipelines for its application on AWS CodePipeline. A developer must write unit tests and run them as part of the p...

A developer is troubleshooting a three-tier application, which is deployed on Amazon EC2 instances. There is a connectivity problem between the application servers and the database...

A company runs a new application on AWS Elastic Beanstalk. The company needs to deploy updates to the application. The updates must not cause any downtime for application users. Th...

A developer is making changes to a custom application that uses AWS Elastic Beanstalk. Which solutions will update the Elastic Beanstalk environment with the new application versio...

A developer needs to write an AWS CloudFormation template on a local machine and deploy a CloudFormation stack to AWS. What must the developer do to complete these tasks?

A developer is updating an Amazon API Gateway REST API to have a mock endpoint. The developer wants to update the integration request mapping template so the endpoint will respond...

A large company has its application components distributed across multiple AWS accounts. The company needs to collect and visualize trace data across these accounts. What should be...

A developer must cache dependent artifacts from Maven Central, a public package repository, as part of an application's build pipeline. The build pipeline has an AWS CodeArtifact r...

A developer is creating an AWS Step Functions state machine to handle an order processing workflow. When the state machine receives an order, the state machine pauses until the ord...

A developer is writing a web application that must share secure documents with end users. The documents are stored in a private Amazon S3 bucket. The application must allow only au...

A company is developing a set of AWS Lambda functions to process data. The Lambda functions need to use a common third-party library as a dependency. The library is frequently upda...