Which part of AWS can you contact to increase your provisioned throughput limits for DynamoDB?

The correct choice is AWS Support because they are the dedicated team responsible for assisting customers with service limits and other account-related requests within AWS. When it comes to DynamoDB, the service has specific throughput limits that can affect application performance. If you require more throughput capacity than what is currently provisioned for your DynamoDB tables, contacting AWS Support is the appropriate step to request an increase in those limits.

AWS CloudWatch serves as a monitoring service that provides data and insights about your AWS resources, but it does not facilitate changes to resource limits. Rather, it can help you track the performance and utilization of your DynamoDB tables.

AWS IAM (Identity and Access Management) is focused on managing access to AWS services and resources securely. While it is essential for controlling permissions and access policies, it does not play a role in adjusting throughput limits.

AWS Config is a service designed for resource tracking and compliance monitoring. It helps you assess, audit, and evaluate the configurations of your AWS resources. Similar to CloudWatch, it does not have functionality related to modifying service limits.

Thus, when seeking to increase provisioned throughput limits for DynamoDB, AWS Support is the appropriate contact point.