DVA-C02 Exam Results

AWS Certified Developer - Associate Questions and Answers

Question 29

A developer wants the ability to roll back to a previous version of an AWS Lambda function in the event of errors caused by a new deployment. How can the developer achieve this with MINIMAL impact on users?

Options:

Change the application to use an alias that points to the current version. Deploy the new version of the code Update the alias to use the newly deployed version. If too many errors are encountered, point the alias back to the previous version.

Change the application to use an alias that points to the current version. Deploy the new version of the code. Update the alias to direct 10% of users to the newly deployed version. If too many errors are encountered, send 100% of traffic to the previous version

Do not make any changes to the application. Deploy the new version of the code. If too many errors are encountered, point the application back to the previous version using the version number in the Amazon Resource Name (ARN).

Create three aliases: new, existing, and router. Point the existing alias to the current version. Have the router alias direct 100% of users to the existing alias. Update the application to use the router alias. Deploy the new version of the code. Point the new alias to this version. Update the router alias to direct 10% of users to the new alias. If too many errors are encountered, send 100% of traffic to the existing alias.

Question 30

A developer uses AWS IAM Identity Center to interact with the AWS CLI and AWS SDKs on a local workstation. API calls to AWS services were working when the SSO access was first configured. However, the developer is now receiving Access Denied errors. The developer has not changed any configuration files or scripts that were previously working on the workstation.

What is the MOST likely cause of the developer's access issue?

Options:

The access permissions to the developer's AWS CLI binary file have changed.

The permission set that is assumed by IAM Identity Center does not have the necessary permissions to complete the API call.

The credentials from the IAM Identity Center federated role have expired.

The developer is attempting to make API calls to the incorrect AWS account.

Question 31

A company has a website that displays a daily newsletter. When a user visits the website, an AWS Lambda function processes the browser's request and queries the company's on-premises database to obtain the current newsletter. The newsletters are stored in English. The Lambda function uses the Amazon Translate TranslateText API operation to translate the newsletters, and the translation is displayed to the user.

Due to an increase in popularity, the website's response time has slowed. The database is overloaded. The company cannot change the database and needs a solution that improves the response time of the Lambda function.

Which solution meets these requirements?

Options:

Change to asynchronous Lambda function invocation.

Cache the translated newsletters in the Lambda /tmp directory.

Enable TranslateText API caching.

Change the Lambda function to use parallel processing.

Question 32

A developer is troubleshooting an application mat uses Amazon DynamoDB in the uswest-2 Region. The application is deployed to an Amazon EC2 instance. The application requires read-only permissions to a table that is named Cars The EC2 instance has an attached IAM role that contains the following IAM policy.

When the application tries to read from the Cars table, an Access Denied error occurs.

How can the developer resolve this error?

Options:

Modify the IAM policy resource to be "arn aws dynamo* us-west-2 account-id table/*"

Modify the IAM policy to include the dynamodb * action

Create a trust policy that specifies the EC2 service principal. Associate the role with the policy.

Create a trust relationship between the role and dynamodb Amazonas com.

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AWS Certified Developer - Associate Questions and Answers

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CompTIA

Fortinet

Microsoft

Salesforce