What function does ArcGIS Server Manager provide?

ArcGIS Server Manager plays a critical role in the management of GIS resources within a federated server environment. It provides users with tools to register data sources, which is essential for ensuring that the server can access the datasets needed to perform various GIS operations and serve web services.

When data sources are registered with a federated server, it allows for the effective management and sharing of geographic information, as well as the deployment of services that utilize these data sources. This functionality is particularly important within organizations that need to maintain a robust GIS environment where datasets can be easily accessed and utilized by applications and users.

While there may be other aspects of server management, such as providing reports or managing hardware, these tasks are typically handled in different ways. The focus of ArcGIS Server Manager is primarily on the administrative aspects of service and data management, making option B the most accurate representation of its core function.