Esri ArcGIS Pro Foundation Certification Practice Test

Modifying existing elements in ArcGIS Pro typically involves working with editable feature layers, which allow users to make changes to the attributes and geometry of features stored within these layers. When a feature layer is identified as "editable," it means that the user can perform various types of edits, such as adding, deleting, or modifying features directly within the map interface. This flexibility is fundamental in GIS workflows, enabling users to update spatial data to reflect the most current information or corrections.

Creating a buffer refers to generating a zone around a feature based on a specified distance, which is more about analyzing spatial relationships than editing existing data. Saving a project is an important task for maintaining the current state of work but does not directly pertain to altering elements within the project. Publishing a web map involves sharing a map online but does not enable modifications of the data within the map itself. Therefore, the process that specifically allows for the modification of existing elements in ArcGIS Pro is through editing an editable feature layer.