An organization manages multiple GIS projects and restricts data access to specific users. Which type of geodatabase should the organization use?

The most suitable choice for managing multiple GIS projects with restricted data access is a versioned geodatabase. This type of geodatabase allows an organization to implement version control, meaning that users can edit and manage different versions of the same data without affecting others' work until a specific version is reconciled and posted.

The versioned geodatabase allows for multiple users to work concurrently on the same datasets while maintaining data integrity and security. This is particularly useful in environments where data access needs to be controlled, as it helps in tracking changes made by various users and allows for permissions to be set at various levels.

In a versioned setup, users can also work offline and later integrate their changes back into the central database without risking conflicts. This makes it an effective solution for organizations managing multiple projects with different user roles and access requirements, ensuring that only authorized users can see or edit specific datasets.

Other types of geodatabases, such as distributed, replica, and modular geodatabases, do not offer the same level of control over user access and versioning, making them less suitable for this specific need.