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Configure long polling for the SQS queue by setting the ReceiveMessage wait time to 20 seconds.

Replace the SQS standard queue with an SQS FIFO queue and enable content-based deduplication.

Adjust the visibility timeout of the SQS queue to exceed the sum of the Lambda function's timeout and the batch window duration.

Update the Lambda function to delete messages from the SQS queue immediately upon retrieval, prior to processing.

Share the dashboard from the CloudWatch console. Enter the auditor's email address, complete the sharing steps, and provide a shareable link for the dashboard to the auditor.

Create an IAM user specifically for the auditor. Attach the CloudWatchReadOnlyAccess AWS managed policy to the user. Share the login credentials and dashboard URL with the auditor.

Create an IAM user for external reviewers. Attach the ViewOnlyAccess AWS managed policy to the user. Share the credentials and instruct the auditor to locate the dashboard in the CloudWatch console.

Deploy a VPN connection to the company's VPC. Grant the auditor VPN access and provide the dashboard URL, assuming the auditor's device has permissions to access internal AWS resources.

Create IAM roles for each persona with necessary permissions. Use AWS Config to monitor resource compliance and alert administrators for remediation.

Implement SAML-based federation for EMR cluster access. Configure identity policies to restrict cluster modifications.

Utilize AWS Service Catalog to define permissible EMR configurations and assign role-based access policies for each persona.

Deploy EMR clusters via AWS CloudFormation templates with IAM policies. Use AWS Config rules to enforce tagging and notify admins of non-compliance.

Deploy an AWS Site-to-Site VPN connection from the on-premises network to a central VPC. Use VPC peering to connect the central VPC to all other VPCs in different Regions.

Establish an AWS Direct Connect connection to AWS with a transit VIF. Attach the transit VIF to a Direct Connect gateway. Link the Direct Connect gateway to each VPC via a transit gateway deployed in each Region.

Configure an AWS Site-to-Site VPN connection from the on-premises network to a transit gateway with dynamic routing. Connect the transit gateway to all VPCs across Regions.

Set up an AWS Direct Connect connection to AWS and create Site-to-Site VPN connections between all VPCs. Use VPC peering from a central VPC to enable connectivity.

Perform a BatchGetItem operation that returns items from both tables. Use the list of orderID/customerID keys for the orders table and the list of customerID keys for the customers table.

Perform a Scan operation on each table, filtering by the list of orderID/customerID keys for the orders table and the list of customerID keys for the customers table.

Perform a BatchGetItem operation on the orders table using orderID/customerID keys. Perform a separate BatchGetItem operation on the customers table using customerID keys.

Create a global secondary index (GSI) on the orders table with customerID as the partition key. Perform a Query operation for each customerID on the orders table and a separate Query operation for each customerID on the customers table.

Create an Amazon EventBridge rule that triggers on Lambda failures and sends the events to an Amazon S3 bucket for storage.

Configure the Lambda function with a dead-letter queue using Amazon Kinesis Data Streams. Grant the Lambda execution role permissions to write to Kinesis.

Set up an Amazon Simple Queue Service (SQS) dead-letter queue for the Lambda function. Update the Lambda's execution role to allow sending messages to the SQS queue.

Implement an Amazon SQS FIFO dead-letter queue for the Lambda function. Modify the Lambda execution role to include permissions for the FIFO queue.