What is layer visibility primarily determined by in ArcGIS?

Layer visibility in ArcGIS is primarily determined by layer sharing settings. These settings control who can view the layers and under what conditions. When a layer is shared, it can be made accessible to specific groups, the public, or any user within an organization. This sharing capability allows administrators to manage how the data is distributed and accessed, ensuring that only intended audiences have visibility of the data.

In ArcGIS, user privileges are important for the overall access to the GIS system and its capabilities, but they do not directly dictate which layers a user can see; they only affect the actions a user can perform within the system. Server load performance can influence the responsiveness of data access and visualization but does not inherently restrict or allow visibility of layers. Data type pertains more to how the data is stored and manipulated within the software rather than its accessibility and visibility.

Effective management of layer visibility through sharing settings is critical for collaboration and maintaining data security within a GIS environment.