DVA-C02 Exam Dumps - AWS Certified Developer - Associate

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Question # 105

A developer is preparing to begin development of a new version of an application. The previous version of the application is deployed in a production environment. The developer needs to deploy fixes and updates to the current version during the development of the new version of the application. The code for the new version of the application is stored in AWS CodeCommit.

Which solution will meet these requirements?

From the main branch, create a feature branch for production bug fixes. Create a second feature branch from the main branch for development of the new version.

Create a Git tag of the code that is currently deployed in production. Create a Git tag for the development of the new version. Push the two tags to the CodeCommit repository.

From the main branch, create a branch of the code that is currently deployed in production. Apply an IAM policy that ensures no other other users can push or merge to the branch.

Create a new CodeCommit repository for development of the new version of the application. Create a Git tag for the development of the new version.

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Question # 106

A company runs an AWS CodeBuild project on medium-sized Amazon EC2 instances. The company wants to cost optimize the project and reduce the provisioning time.

Configure the project to run on a CodeBuild reserved capacity fleet.

Select AWS Lambda as the compute mode for the CodeBuild project.

Configure the project to run on a CodeBuild on-demand fleet.

Set up Amazon S3 caching for the CodeBuild project.

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Question # 107

A company has a web application that contains an Amazon API Gateway REST API. A developer has created an AWS CloudFormation template for the initial deployment of the application. The developer has deployed the application successfully as part of an AWS CodePipeline continuous integration and continuous delivery (CI/CD) process. All resources and methods are available through the deployed stage endpoint.

The CloudFormation template contains the following resource types:

â€¢ AWS::ApiGateway::RestApi

â€¢ AWS::ApiGateway::Resource

â€¢ AWS::ApiGateway::Method

â€¢ AWS:ApiGateway::Stage

â€¢ AWS::ApiGateway:;Deployment

The developer adds a new resource to the REST API with additional methods and redeploys the template. CloudFormation reports that the deployment is successful and that the stack is in the UPDATE_COMPLETE state. However, calls to all new methods are returning 404 (Not Found) errors.

What should the developer do to make the new methods available?

Specify the disable-rollback option during the update-stack operation.

Unset the Cloud Forma lion stack failure options.

Add an AWS CodeBuild stage lo CodePipeline to run the aws apigateway create-deployment AWS CLI command.

Add an action to CodePipeline to run the aws cloudfront create-invalidation AWS CLI command.

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Question # 108

A developer is monitoring an application that runs on an Amazon EC2 Instance. The developer has configured a custom Amazon CloudWatch metric with data granularity of 1 second. It any issues occur, the developer wants to be notified within 30 seconds by Amazon Simple Notification Service (Amazon SNS).

What should the developer do to meet this requirement?

Configure a high-resolution CloudWatch alarm.

Set up a custom CloudWatch dashboard.

Use Amazon CloudWatch Logs Insights.

Change to a default CloudWatch metric.

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Question # 109

A company requires that all applications running on Amazon EC2 use 1AM roles to gam access to AWS services. A developer is modifying an application that currently relies on 1AM user access keys stored in environment variables to access Amazon DynamoDB tables using boto, the AWS SDK for Python.

The developer associated a role with the same permissions as the 1AM user to the EC2 instance, then deleted the 1AM user. When the application was restarted, the AWS

Access Denied Exception messages started appearing in the application logs. The developer was able to use their personal account on the server to run DynamoDB API commands using the AWS CLI.

What is the MOST likely cause of the exception?

1AM policies might take a few minutes to propagate to resources.

Disabled environment variable credentials are still being used by the application.

The AWS SDK does not support credentials obtained using an instance role.

The instance's security group does not allow access to http://169.254.169.254.

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Question # 110

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 authenticated users to download specific documents when requested, and only for a duration of 15 minutes.

How can the developer meet these requirements?

Copy the documents to a separate S3 bucket that has a lifecycle policy for deletion after 15 minutes.

Create a presigned S3 URL using the AWS SDK with an expiration time of 15 minutes.

Use server-side encryption with AWS KMS managed keys (SSE-KMS) and download the documents using HTTPS.

Modify the S3 bucket policy to only allow specific users to download the documents. Revert the change after 15 minutes.

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Question # 111

A company has a web application that contains an Amazon API Gateway REST API. A developer has created an AWS CloudFormation template for the initial deployment of the application. The developer has deployed the application successfully as part of an AWS CodePipeline CI/CD process. All resources and methods are available through the deployed stage endpoint.

The CloudFormation template contains the following resource types:

â€¢ AWS::ApiGateway::RestApi

â€¢ AWS::ApiGateway::Resource

â€¢ AWS::ApiGateway::Method

â€¢ AWS::ApiGateway::Stage

â€¢ AWS::ApiGateway::Deployment

What should the developer do to make the new methods available?

Specify the disable-rollback option during the update-stack operation.

Unset the CloudFormation stack failure options.

Add an AWS CodeBuild stage to CodePipeline to run the aws apigateway create-deployment AWS CLI command.

Add an action to CodePipeline to run the aws cloudfront create-invalidation AWS CLI command.

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Question # 112

A developer is building a highly secure healthcare application using serverless components. This application requires writing temporary data to /Imp storage on an AWS Lambda function.

How should the developer encrypt this data?

Enable Amazon EBS volume encryption with an AWS KMS key in the Lambda function configuration so that all storage attached to the Lambda function is encrypted.

Set up the Lambda function with a role and key policy to access an AWS KMS key. Use the key to generate a data key used to encrypt all data prior to writing to Amp storage.

Use OpenSSL to generate a symmetric encryption key on Lambda startup. Use this key to encrypt the data prior to writing to /tmp.

Use an on-premises hardware security module (HSM) to generate keys, where the Lambda function requests a data key from the HSM and uses that to encrypt data on all requests to the function.

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