A company is running its customer feedback application on Amazon Aurora MySQL. The company runs a report every day to extract customer feedback, and a team reads the feedback to determine if the customer comments are positive or negative. It sometimes takes days before the company can contact unhappy customers and take corrective measures. The company wants to use machine learning to automate this workflow.
Which solution meets this requirement with the LEAST amount of effort?

• A.Export the Aurora MySQL database to Amazon S3 by using AWS Database Migration Service (AWS DMS). Use Amazon Comprehend to run sentiment analysis on the exported files.
• B.Export the Aurora MySQL database to Amazon S3 by using AWS Database Migration Service (AWS DMS). Use Amazon SageMaker to run sentiment analysis on the exported files.
• C.Set up Aurora native integration with Amazon Comprehend. Use SQL functions to extract sentiment analysis.
• D.Set up Aurora native integration with Amazon SageMaker. Use SQL functions to extract sentiment analysis.

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A business's mission-critical production workload is being operated on a 500 GB Amazon Aurora MySQL DB cluster. A database engineer must migrate the workload without causing data loss to a new Amazon Aurora Serverless MySQL DB cluster.
Which approach will result in the LEAST amount of downtime and the LEAST amount of application impact?

• A.Modify the existing DB cluster and update the Aurora configuration to Serverless.
• B.Create a snapshot of the existing DB cluster and restore it to a new Aurora Serverless DB cluster.
• C.Create an Aurora Serverless replica from the existing DB cluster and promote it to primary when the replica lag is minimal.
• D.Replicate the data between the existing DB cluster and a new Aurora Serverless DB cluster by using AWS Database Migration Service (AWS DMS) with change data capture (CDC) enabled.

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A Database Specialist is constructing a new Amazon Neptune DB cluster and tries to load data from Amazon S3 using the Neptune bulk loader API. The Database Specialist is confronted with the following error message:
Unable to establish a connection to the s3 endpoint.
The source URL is s3:/mybucket/graphdata/ and the region code is us-east-1.
Kindly confirm your Configuration S3.
Which of the following activities should the Database Specialist take to resolve the issue? (Select two.)

• A.Check that Amazon S3 has an IAM role granting read access to Neptune
• B.Check that an Amazon S3 VPC endpoint exists
• C.Check that a Neptune VPC endpoint exists
• D.Check that Amazon EC2 has an IAM role granting read access to Amazon S3
• E.Check that Neptune has an IAM role granting read access to Amazon S3

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A company is using a Single-AZ Amazon RDS for MySQL DB instance for development. The DB instance is experiencing slow performance when queries are executed. Amazon CloudWatch metrics indicate that the instance requires more I/O capacity.
Which actions can a database specialist perform to resolve this issue? (Choose two.)

• A.Restart the application tool used to execute queries.
• B.Change to a database instance class with higher throughput.
• C.Convert from Single-AZ to Multi-AZ.
• D.Increase the I/O parameter in Amazon RDS Enhanced Monitoring.
• E.Convert from General Purpose to Provisioned IOPS (PIOPS).

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A company is releasing a new mobile game featuring a team play mode. As a group of mobile device users play together, an item containing their statuses is updated in an Amazon DynamoDB table. Periodically, the other users' devices read the latest statuses of their teammates from the table using the BatchGetltemn operation.
Prior to launch, some testers submitted bug reports claiming that the status data they were seeing in the game was not up-to-date. The developers are unable to replicate this issue and have asked a database specialist for a recommendation.
Which recommendation would resolve this issue?

• A.Ensure the DynamoDB table is configured to be always consistent.
• B.Ensure the BatchGetltem operation is called with the ConsistentRead parameter set to false.
• C.Enable a stream on the DynamoDB table and subscribe each device to the stream to ensure all devices receive up-to-date status information.
• D.Ensure the BatchGetltem operation is called with the ConsistentRead parameter set to true.

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