What feature service data access property must be enabled for offline editing through Collector for ArcGIS?

For offline editing to be effective through Collector for ArcGIS, the feature service needs to have specific data access properties configured. The correct choice involves enabling the Sync capability along with the ability to perform queries and a combination of create, delete, and update operations.

Enabling Sync is crucial because it allows for the synchronization of data changes made while offline with the server once the device is back online. This ensures that any edits made during the offline period can be properly uploaded to the feature service, maintaining data integrity and collaboration among users.

Additionally, supporting a mix of Create, Delete, and Update operations is essential because these are the actions users will typically perform while editing features in their local copy of the data. If a service does not allow these operations, users wouldn't be able to fully utilize the offline editing capabilities that Collector for ArcGIS offers.

Overall, having the combination of Sync capability with appropriate create, delete, and update functionalities enables a comprehensive offline editing experience, facilitating effective data management while users are disconnected from the internet.