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A developer owns and supports an application that has database credentials that are stored in...

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A developer owns and supports an application that has database credentials that are stored in environment variables for AWS Lambda functions. The developer needs an alternate storage method for the credentials instead of environment variables in plaintext. Which solution will handle the credentials MOST securely?

A.

Store the database credentials as a secret in AWS Secrets Manager. Set the secret ' s Amazon Resource Name (ARN) as the value of an environment variable. Use the AWS Parameters and Secrets Lambda Extension to retrieve the credentials in the Lambda function.

B.

Use base64 encoding for the database credentials. Include the database credentials into the Lambda function ' s source code as part of a build process. Update the Lambda function ' s code to decode the credentials before the credentials are used.

C.

Store the database credentials as a string type parameter in the AWS Systems Manager Parameter Store. Set the parameter ' s Amazon Resource Name (ARN) as the value of an environment variable. Use the AWS Parameters and Secrets Lambda Extension to retrieve the credentials from the Lambda function.

D.

Use AWS CloudFormation to deploy the application. Ensure that the NoEcho property is set to true for the parameters that contain the database credentials.

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