A Developer has written a serverless application using multiple AWS services. The business logic is written as a Lambda function which has dependencies on third-party libraries. The Lambda function endpoints will be exposed using Amazon API Gateway. The Lambda function will write the information to Amazon DynamoDB.
The Developer is ready to deploy the application but must have the ability to rollback. How can this deployment be automated, based on these requirements?

• A.Deploy using Amazon Lambda API operations to create the Lambda function by providing a deployment package.
• B.Use an AWS CloudFormation template and use CloudFormation syntax to define the Lambda function resource in the template.
• C.Use syntax conforming to the Serverless Application Model in the AWS CloudFormation template to define the Lambda function resource.
• D.Create a bash script which uses AWS CLI to package and deploy the application.

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A company is developing a report executed by AWS Step Functions Amazon CloudWatch shows errors in the Step Functions task state machine To troubleshoot each task, the state input needs to be included along with the error message in the state output.
Which coding practice can preserve both the original input and the error for the state?

• A.Use ResultPath in a Catch statement to include the error with the original input
• B.Use inputPath in a Catch statement and set the value to null.
• C.Use ErrorEquals in a Retry statement to include the error with the original input
• D.Use OutputPath in a Retry statement and set the value to $.

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An application is expected to process many files. Each file takes four minutes to process each AWS Lambda invocation. The Lambda function does not return any important data.
What is the fastest way to process all the files?

• A.First join all the files, then process it all at once with an asynchronous Event Lambda invocation.
• B.Make synchronous RequestResponse Lambda invocations and process the files one by one.
• C.Make asynchronous Event Lambda invocations and process the files in parallel.
• D.First split the files to make them smaller, then process with synchronous RequestResponse Lambda invocations.

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A company's security policies require all database passwords to be rotated every 30 days The company uses different database platforms, including Amazon Aurora databases and proprietary NoSQL document databases, for different applications A developer needs to implement a solution for password rotation Which solution will meet these requirements?

• A.Create an AWS Lambda rotation function that has appropriate 1AM permissions Store the password in AWS Secrets Manager Configure Secrets Manager to rotate the password by using the Lambda function
• B.Encrypt the existing password with AWS Key Management Service (AWS KMS) Export the existing password Generate a random password with AWS KMS Use the AWS KMS password renewal feature to replace the existing password with the new password.
• C.Integrate AWS Systems Manager Parameter Store with a Key Management Interoperability Protocol (KMIP)-compliant third-party secret manager to enable third-party database password rotation on AWS
• D.Create an AWS Lambda rotation function that has appropriate 1AM permissions Store the password in AWS Systems Manager Parameter Store Configure Parameter Store to rotate the password by using the Lambda function

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An Amazon S3 bucket, "myawsbucket" is configured with website hosting in Tokyo region, what is the region-specific website endpoint?

• A.myawsbucket.s3-website-ap-northeast-1.amazonawscom
• B.www.myawsbucket.ap-northeast-1.amazonaws.com
• C.myawsbucket.amazonaws.com
• D.myawsbucket.tokyo.amazonaws.com

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