Which AWS service or feature should the database specialist use to meet these requirements?

Explanations:

AWS Systems Manager Parameter Store is used to manage and store configuration data, secrets, and parameters, but it is not specifically designed for managing Aurora DB cluster configurations or parameter groups. It focuses more on application and infrastructure configuration, not database-specific configurations.

DB parameter groups are specifically designed to manage the configuration settings for Amazon RDS and Amazon Aurora clusters. They allow the systematic storage and modification of database configuration parameters, aligning with the requirements of the database specialist.

AWS Config with Amazon RDS managed rules helps monitor resource configurations and compliance, but it is not used for the direct management or modification of DB configuration parameters. It focuses on auditing and compliance rather than configuration changes.

AWS Secrets Manager is primarily used for managing sensitive data such as database credentials, API keys, and other secrets. It is not intended for managing DB configuration parameters like DB parameter groups are.