What action should an administrator take to sync new users and groups from Active Directory with an existing UDC?

To sync new users and groups from Active Directory with an existing User Directory Connector (UDC), adjusting the LDAP filter in UDC to include new users is the correct action. This filter defines which users and groups are pulled from Active Directory into Qlik Sense. By changing the LDAP filter, an administrator can ensure that new or modified users and groups are recognized and incorporated into the UDC without having to recreate or extensively alter existing configurations.

This process allows for ongoing synchronization of Active Directory users and groups, reflecting any updates made in the directory and maintaining the integrity of user management within Qlik Sense. This option maximizes efficiency by leveraging existing configurations and updating them to capture new data, rather than starting from scratch or manually managing users.

The other actions, such as restarting Qlik Sense services, creating a new UDC, or removing existing users, do not effectively address the need to sync new users. Restarting services would not alter the configured UDC or update the user list, while creating a new UDC can introduce unnecessary complexity and user management challenges. Removing existing users does not contribute to syncing new users and groups; rather, it could lead to further disruption within the environment if not carefully managed.