A Solutions Architect is designing an elastic application that will have between 10 and 50 Amazon EC2 concurrent instances running, dependent on load. Each instance must mount storage that will read and write to the same 50 GB folder.
Which storage type meets the requirements?

• A.Amazon EFS
• B.Amazon EC2 instance store
• C.Amazon S3
• D.Amazon EBS volumes

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Which of the following items are required to allow an application deployed on an EC2 instance to write data to a Dynamo DB table? Assume that no security keys are allowed to be stored on the EC2 instance? Choose 2 answers

• A.Launch an EC2 instance with the IAM Role included in the launch configuration
• B.Create an IAM role that allows write access to the DynamoDB table
• C.Add an IAM user to a running EC2 instance
• D.Launch an EC2 instance with the IAM user included in the launch configuration
• E.Add an IAM Role to a running EC2 instance
• F.Create an IAM User that allows write access to the DynamoDB table

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A group can contain many users. Can a user belong to multiple groups?

• A.Yes always
• B.Yes but only if they are using two factor authentication
• C.No
• D.Yes but only in VPC

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A company hosts its website on Amazon S3. When a new version of the websites is released, a new set of files is used, and the previous version is archived. For regulatory and audit reasons, all the files used for the website must be kept for seven years. If auditor needs to retrieve a file. It must be available within four days.
Which is the MOST cost-effective storage option to store backup files?

• A.Amazon S3 IA
• B.Amazon Glacier
• C.Amazon S3 Standard
• D.Amazon EBS

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A company has a web application that securely uploads pictures and videos to an Amazon S3 bucket. The company requires that only authenticated users are allowed to post content. The application generates a presigned URL that is used to upload objects through a browser interface. Most users are reporting slow upload times for objects larger than 100 MB.
What can a Solutions Architect do to improve the performance of these uploads while ensuring only authenticated users are allowed to post content?

• A.Configure an Amazon CloudFront distribution for the destination S3 bucket. Enable PUT and POST methods for the CloudFront cache behavior. Update the CloudFront origin to use an origin access identity (OAI). Give the OAI user s3:PutObjectpermissions in the bucket policy. Have the browser interface upload objects using the CloudFront distribution.
• B.Enable an S3 Transfer Acceleration endpoint on the S3 bucket. Use the endpoint when generating the presigned URL. Have the browser interface upload the objects to this URL using the S3 multipart upload API.
• C.Set up an Amazon API Gateway with a regional API endpoint that has a resource as an S3 service proxy. Configure the PUT method for this resource to expose the S3 PutObjectoperation. Secure the API Gateway using an AWS Lambda authorizer. Have the browser interface use API Gateway instead of the presigned URL to upload API objects.
• D.Set up an Amazon API Gateway with an edge-optimized API endpoint that has a resource as an S3 service proxy. Configure the PUT method for this resource to expose the S3 PutObjectoperation.
  Secure the API Gateway using a COGNITO_USER_POOLSauthorizer. Have the browser interface use API Gateway instead of the presigned URL to upload objects.

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