How should a GIS administrator install Insights for ArcGIS across a series of virtual machines that host Portal for ArcGIS and ArcGIS GIS Server?

The correct approach to installing Insights for ArcGIS involves running the installer on both the ArcGIS Server and Portal for ArcGIS machines. This is essential because Insights for ArcGIS functions as an extension that requires integration with both components to provide full functionality.

When installed on the Portal for ArcGIS machine, Insights can leverage the authentication and user management provided by the Portal, ensuring that users can access the analysis tools seamlessly within the context of their existing Portal framework. Furthermore, installing Insights on the ArcGIS Server machine allows the system to process and serve geospatial data analytics, which is crucial for running complex analyses that users will conduct through the Insights interface.

By using Insights in conjunction with both the Portal and ArcGIS Server, users get a comprehensive experience that supports collaborative analysis and visual data exploration in line with the capabilities of the enterprise GIS.

The other options do not cover the essential requirements for a holistic installation. For example, installing Insights only on the ArcGIS Server would limit its interaction with users and data presentation as handled by the Portal. Similarly, limiting installation to machines with ArcGIS Data Store ignores the critical integration with both the Portal and Server. Deploying Insights solely within a cloud environment may not be viable or desirable in all GIS architectures and scenarios.

Therefore