A current architecture uses many Lambda functions invoking one another as a large state machine. The coordination of this state machine is legacy custom code that breaks easily.
Which AWS Service can help refactor and manage the state machine?

• A.AWS Step Functions
• B.Amazon Elastic MapReduce
• C.AWS SNS with AWS SQS
• D.AWS Data Pipeline

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A Developer is investigating an issue whereby certain requests are passing through an Amazon API Gateway endpoint /MyAPI, but the requests do not reach the AWS Lambda function backing /MyAPI. The Developer found that a second Lambda function sometimes runs at maximum concurrency allowed for the given AWS account.
How can the Developer address this issue?

• A.Manually reduce the concurrent execution limit at the account level
• B.Add another API Gateway stage for /MyAPI, and shard the requests
• C.Configure the second Lambda function's concurrency execution limit
• D.Reduce the throttling limits in the API Gateway /MyAPI endpoint

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A company has multiple Developers located across the globe who are updating code incrementally for a development project. When Developers upload code concurrently, internet connectivity is slow and it is taking a long time to upload code for deployment in AWS Elastic Beanstalk.
Which step will result in minimized upload and deployment time with the LEAST amount of administrative effort?

• A.Allow the Developers to upload the code to a central FTP server to deploy the application to Elastic Beanstalk.
• B.Create an AWS CodeCommit repository, allow the Developers to commit code to it, and then directly deploy the code to Elastic Beanstalk.
• C.Allow the Developers to upload the code to an Amazon S3 bucket, and deploy it directly to Elastic Beanstalk.
• D.Create a code repository on an Amazon EC2 instance so that all Developers can update the code, and deploy the application from the instance to Elastic Beanstalk.

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A Developer must encrypt a 100-GB object using AWS KMS.
What is the BEST approach?

• A.Make an Encrypt API call to encrypt the plaintext data as ciphertext using a customer master key (CMK)
• B.Make an Encrypt API call to encrypt the plaintext data as ciphertext using a customer master key (CMK) with imported key material
• C.Make a GenerateDataKey API call that returns a plaintext key and an encrypted copy of a data key. Use a plaintext key to encrypt the data
• D.Make a GenerateDataKeyWithoutPlaintext API call that returns an encrypted copy of a data key. Use an encrypted key to encrypt the data

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AWS CodeBuild builds code for an application, creates the Docker image, pushes the image to Amazon Elastic Container Registry (Amazon ECR), and tags the image with a unique identifier.
If the Developers already have AWS CLI configured on their workstations, how can the Docker images be pulled to the workstations?

• A.Run the following:docker pull REPOSITORY URI : TAG
• B.Run the output of the following:aws ecr get-loginand then run:docker pull REPOSITORY URI : TAG
• C.Run the following:aws ecr get-loginand then run:docker pull REPOSITORY URI : TAG
• D.Run the output of the following:aws ecr get-download-url-for-layerand then run:docker pull REPOSITORY URI : TAG

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