What does AWS Config provide?

AWS Config provides a detailed view of AWS resource configurations, allowing users to track and monitor the configurations of their AWS resources over time. It can continuously assess, audit, and evaluate the configurations of the resources within an AWS account. This service helps in compliance auditing, security analysis, and change management by providing historical configuration data and the ability to determine how configurations change over time. Users can also set up rules to evaluate the configurations against desired states and receive alerts for non-compliance, which supports effective resource management and governance.

The other options focus on different areas of AWS services. For example, while identity management is handled by AWS Identity and Access Management (IAM), billing and cost management are managed through AWS Billing and Cost Management services, and application monitoring is primarily addressed through AWS CloudWatch. Each of these services has distinct purposes that do not overlap with the functionality provided by AWS Config.