DVA-C02 Exam Questions

A developer is working on an AWS Lambda function. The developer notices that the Lambda function's logs do not appear in Amazon CloudWatch Logs. How should the developer resolve th...

A company uses AWS Secrets Manager to store API keys for external REST services. The company uses an AWS Lambda function to rotate the API keys on a regular schedule. Because of an...

A company runs a critical application on AWS. The application uses credentials to access an Amazon RDS database. As part of a risk assessment to analyze security vulnerabilities, t...

A developer built a serverless application that processes medical images. The images are often more than 1 GB in size. Users upload all the images directly to an Amazon S3 bucket f...

A company has point-of-sale devices across thousands of retail shops that synchronize sales transactions with a centralized system. The system includes an Amazon API Gateway API th...

A developer is investigating recent performance bottlenecks within a company's distributed web application that runs on various AWS services, including Amazon EC2 and Amazon Dynamo...

A developer is using an AWS Lambda function to process records that are delivered by an Amazon Kinesis data stream. The developer configured the maximum retry attempts for each rec...

A company creates a containerized application for its customers. The company will host the container images in Amazon ECR. The customers need to be able to find the images on their...

A developer created a Lambda function for a web application backend. When testing the Lambda function from the AWS Lambda console, the developer can see that the function is being...

A development team uses an Amazon DynamoDB table as a database for an application. The team notices errors and slowdowns in the application during peak usage hours. The slowdowns a...

A developer is building an application that uses an AWS Lambda function. The Lambda function requires access to an Amazon DynamoDB table. The function also needs to send logs to Am...

A company wants to use AWS CodeDeploy to deploy several AWS Lambda functions to a pipeline in AWS CodePipeline. The company needs to add unit tests to the pipeline for the Lambda f...

A developer is preparing containers for deployment on Amazon EKS. The developer must scan all containers for operating system (OS) and programming language vulnerabilities. Any ide...

A developer has created an AWS Lambda function for a company's application. The developer must make the Lambda function available for other developers at the company to deploy as n...

A developer is developing an application that manages financial transactions. To improve security, multi-factor authentication (MFA) will be required as part of the login process....

A development team is responsible for an application that uses a microservices architecture. The microservices are deployed to AWS Elastic Beanstalk. One of the services calls Amaz...

A company is running a custom web application on Amazon EC2 instances behind an Application Load Balancer. The instances run in an Auto Scaling group. The company's development tea...

A developer needs to query application logs that capture events from a serverless application. AWS Lambda functions handle most of the application logic. The developer must query t...

An application adds a processing date to each transaction that it receives. The application writes each transaction to an Amazon DynamoDB table by using the PutItem operation. Each...

A developer is managing an application that uses Amazon SQS to handle system events. The developer must implement a solution to process messages 5 minutes after the messages are ad...

A developer is configuring AWS CodeDeploy to deploy an existing application to on-premises servers. The developer has a copy of all application source files and configurations in a...

A web application that runs on a fleet of Amazon EC2 instances sends logs to a log group in Amazon CloudWatch Logs. The logs are in the following format: [ip, id, user, timestamp,...

A developer is building a web application. The application will read temperature information from an Amazon DynamoDB table and will display the information for users. Each record i...

A company has a web application in an Amazon ECS cluster running hundreds of secure services in AWS Fargate containers. The services are in target groups routed by an Application L...

A developer is investigating an issue for a company. Some requests are passing through an Amazon API Gateway endpoint, but they do not reach the AWS Lambda function that backs the...

A company runs an application on an Amazon ECS cluster behind an Application Load Balancer (ALB). The company deploys an Amazon API Gateway HTTP API in front of the ALB. The compan...

A company has an application where reading objects from Amazon S3 is based on the type of user. The user types are registered user and guest user. The company has 25,000 users and...

A developer is testing a Docker-based application that uses the AWS SDK to interact with Amazon DynamoDB. In the local development environment, the application has used IAM access...

A company is developing a software as a service (SaaS) platform that serves both enterprise users and individual users. The application stores files in Amazon S3, uses Amazon RDS f...

A company's application has pricing tiers to group features and usage limits. The company needs to configure values for feature groups and usage limits dynamically for multiple ten...

A developer is testing an AWS Lambda function by using the AWS SAM local CLI. The application that is implemented by the Lambda function makes several AWS API calls by using the AW...

A development team at a company uses an AWS CloudFormation template to define and deploy Amazon EC2 instances in a development AWS account. The company's policy states that the dev...

A developer manages an application that interacts with Amazon RDS. After observing slow performance with read queries, the developer implements Amazon ElastiCache to update the cac...

A developer is writing a new serverless application for a company. Several other developers must collaborate on the code for this application, and the company expects frequent chan...

A developer is creating a role to access Amazon S3 buckets. To create the role, the developer uses the AWS CLI create-role command. Which policy should be added to allow the Amazon...

A developer wants to connect an Amazon RDS DB instance to an AWS Lambda function. The Amazon RDS credentials are stored in AWS Secrets Manager. The developer wants to optimize the...

A company migrates some of its Amazon EC2 workloads to Spot Instances. An infrastructure team wants to determine how often the deployed Spot Instances are interrupted and replaced....

A retail company uses an AWS Lambda function to process incoming orders from an Amazon SQS queue. The function performs multiple data transformations and then saves the data to an...

A development team is working on a mobile app that allows users to upload pictures to Amazon S3. The team expects the app will be used by hundreds of thousands of users during a si...

A developer has designed a customer-facing application that is running on an Amazon EC2 instance. The application logs every request made to it. The application usually runs seamle...

A developer is building an AWS Step Functions state machine that invokes an AWS Lambda function. The Lambda function makes requests to an external API that sometimes is not availab...

A development team needs a cost-effective solution to store log files and other unstructured data securely for an application. The solution must encrypt the data in transit and at...

A developer manages an application that stores user objects in an Amazon S3 bucket without versioning enabled. The application has premium users and basic users. After premium user...

A developer has an application that pushes files from an on-premises local server to an Amazon S3 bucket. The application uses an AWS access key and a secret key that are stored on...

A developer must ensure that sensitive customer data that is stored in an AWS Lambda function is encrypted at rest and in transit. The sensitive data is stored in environment varia...

A developer is updating an application to store data in an Amazon S3 bucket. The application and the S3 bucket are in the same AWS account. The data needs to be encrypted by an AWS...

A developer is building an application that runs in an Amazon ECS service. The developer configures an IAM role as the task role. The developer needs to grant the application acces...

An application uses an Amazon DynamoDB table to manage user profiles. A UserID attribute is the primary key of the table. The table also includes columns named Username, EmailAddre...

A developer is using a user pool in Amazon Cognito to implement user sign-up functionality for an application. The developer wants to use an AWS Lambda function to automatically co...

A developer is debugging an issue with an application that is based on an AWS Lambda function. The Lambda function intermittently fails during a 1-hour window. The developer needs...