DVA-C02 Exam Dumps - AWS Certified Developer - Associate

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Question # 145

A developer is designing an event-driven architecture. An AWS Lambda function that processes data needs to push processed data to a subset of four consumer Lambda functions. The data must be routed based on the value of one field in the data.

Which solution will meet these requirements with the LEAST operational overhead?

Create an Amazon Simple Queue Service {Amazon SQS) queue and even! source mapping for each consumer Lambda function. Add message routing logic to the data-processing Lambda function.

Create an Amazon Simple Notification Service (Amazon SNS) topic. Subscribe the four consumer Lambda functions to the topic. Add message filtering logic to each consumer Lambda function. Subscribe the data-processing Lambda function to the SNS topic.

Create a separate Amazon Simple Notification Service (Amazon SNS) topic and subscription for each consumer Lambda function. Add message routing logic to the data-processing Lambda function to publish to the appropriate topic.

Create a single Amazon Simple Notification Service {Amazon SNS) topic. Subscribe the four consumer Lambda functions to the topic. Add SNS subscription filter policies to each subscription. Configure the data-processing Lambda function to publish to the topic.

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Question # 146

A company uses AWS X-Ray to monitor a serverless application. The components of the application have different request rates. The user interactions and transactions are important to trace, but they are low in volume. The background processes such as application health checks, polling, and connection maintenance generate high volumes of read-only requests.

Currently, the default X-Ray sampling rules are universal for all requests. Only the first request per second and some additional requests are recorded. This setup is not helping the company review the requests based on service or request type.

A developer must configure rules to trace requests based on service or request properties. The developer must trace the user interactions and transactions without wasting effort recording minor background tasks.

Which solution will meet these requirements?

Disable sampling for high-volume read-only requests. Sample at a lower rate for all requests that handle user interactions or transactions.

Disable sampling and trace all requests for requests that handle user interactions or transactions. Sample high-volume read-only requests at a higher rate.

Disable sampling and trace all requests for requests that handle user interactions or transactions. Sample high-volume read-only requests at a lower rate.

Disable sampling for high-volume read-only requests. Sample at a higher rate for all requests that handle user interactions or transactions.

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Question # 147

An application runs on multiple EC2 instances behind an ELB.

Where is the session data best written so that it can be served reliably across multiple requests?

Write data to Amazon ElastiCache

Write data to Amazon Elastic Block Store

Write data to Amazon EC2 instance Store

Wide data to the root filesystem

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Question # 148

A developer is using AWS Amplify Hosting to build and deploy an application. The developer is receiving an increased number of bug reports from users. The developer wants to add end-to-end testing to the application to eliminate as many bugs as possible before the bugs reach production.

Which solution should the developer implement to meet these requirements?

Run the amplify add test command in the Amplify CLI.

Create unit tests in the application. Deploy the unit tests by using the amplify push command in the Amplify CLI.

Add a test phase to the amplify.yml build settings for the application.

Add a test phase to the aws-exports.js file for the application.

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Question # 149

A company runs an application on AWS The application stores data in an Amazon DynamoDB table Some queries are taking a long time to run These slow queries involve an attribute that is not the table ' s partition key or sort key

The amount of data that the application stores in the DynamoDB table is expected to increase significantly. A developer must increase the performance of the queries.

Which solution will meet these requirements ' ?

Increase the page size for each request by setting the Limit parameter to be higher than the default value Configure the application to retry any request that exceeds the provisioned throughput.

Create a global secondary index (GSI). Set query attribute to be the partition key of the index

Perform a parallel scan operation by issuing individual scan requests in the parameters specify the segment for the scan requests and the total number of segments for the parallel scan.

Turn on read capacity auto scaling for the DynamoDB table. Increase the maximum read capacity units (RCUs).

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Question # 150

A software company is migrating a single-page application from on-premises servers to the AWS Cloud by using AWS Amplify Hosting. The application relies on an API that was created with an existing GraphQL schema. The company needs to migrate the API along with the application.

Which solution will meet this requirement with the LEAST amount of configuration?

Create a new API by using the Amplify CLI ' s amplify import api command. Select REST as the service to use. Add the existing schema to the new API.

Create a new API in Amazon API Gateway by using the existing schema. Use the Amplify CLI ' s amplify add api command. Select the API as the application ' s backend environment.

Create a new API in AWS AppSync by using the existing schema. Use the Amplify CLI ' s amplify import api command. Select the API as the application ' s backend environment.

Create a new API by using the Amplify CLI ' s amplify add api command. Select GraphQL as the service to use. Add the existing schema to the new API.

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Question # 151

A developer must securely access a secret during a build process in an AWS CodeBuild project that has an IAM role. The secret must remain encrypted at rest and must be passed to the buildspec.yml file without appearing in the build logs. Which solution will meet these requirements with the LEAST operational overhead?

Configure AWS Secrets Manager to store the secret. Configure the env section of the buildspec.yml file to have a secrets-manager key-value entry that references the secret. Grant the CodeBuild IAM role the minimum necessary permissions to access the secret.

Store the secret in an encrypted Amazon S3 bucket. Download the secret during the build process. Use NoEcho to mask the value of the secret. Grant the CodeBuild IAM role the minimum necessary permissions to access the S3 bucket.

Configure AWS Systems Manager Parameter Store to store the secret. Configure the env section of the buildspec.yml file to have a parameter-store key-value entry that references the parameter. Grant the CodeBuild IAM role the minimum necessary permissions to access the parameter.

Store the secret in AWS Systems Manager Parameter Store. Use a pre-build step to retrieve the parameter by using AWS CLI commands. Mask the parameter in the buildspec.yml file. Grant the CodeBuild IAM role the minimum necessary permissions to access the parameter.

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Question # 152

A company wants to deploy and maintain static websites on AWS. Each website ' s source code is hosted in one of several version control systems, including AWS CodeCommit, Bitbucket, and GitHub.

The company wants to implement phased releases by using development, staging, user acceptance testing, and production environments in the AWS Cloud. Deployments to each environment must be started by code merges on the relevant Git branch. The company wants to use HTTPS for all data exchange. The company needs a solution that does not require servers to run continuously.

Which solution will meet these requirements with the LEAST operational overhead?

Host each website by using AWS Amplify with a serverless backend. Conned the repository branches that correspond to each of the desired environments. Start deployments by merging code changes to a desired branch.

Host each website in AWS Elastic Beanstalk with multiple environments. Use the EB CLI to link each repository branch. Integrate AWS CodePipeline to automate deployments from version control code merges.

Host each website in different Amazon S3 buckets for each environment. Configure AWS CodePipeline to pull source code from version control. Add an AWS CodeBuild stage to copy source code to Amazon S3.

Host each website on its own Amazon EC2 instance. Write a custom deployment script to bundle each website ' s static assets. Copy the assets to Amazon EC2. Set up a workflow to run the script when code is merged.

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