Final answer:
The point symbols in a feature layer will scale with zoom levels in ArcGIS when the reference scale for the layer is set. This allows for the symbols to maintain a consistent size relative to the map's geography. The setting is adjusted in the Layer Properties under the Display tab.
Step-by-step explanation:
In ArcGIS, when a user wants point symbols in a feature layer to scale automatically as the map is zoomed in or out, they must set the reference scale for the layer. This ensures that symbols maintain a consistent, intended size relative to the geography of the map. If a reference scale is set, as users zoom in beyond the reference scale, the symbols will appear larger, and as they zoom out, the symbols will become smaller. Without setting a reference scale, symbols stay the same size on screen, regardless of zoom level, which can make them appear out of proportion to the map at different scales.
To set the reference scale, the user can navigate to the Layer Properties, click on the Display tab, and set the desired scale at which they want the symbols to appear at their intended size. No scale (0) can also be selected, meaning the symbols will not change size as the view is zoomed.