dump exportPSK = YES Creates a script that contains the current configuration. If saved to a file, this script can be used ...

dump 
    [exportPSK =] YES 
 
    Creates a script that contains the current configuration. If saved to a 
    file, this script can be used to restore altered configuration settings. 
 
    exportPSK - To export the shared secrets for RADIUS clients and remote 
               RADIUS servers (required). 
 
    If you want to export the NPS server configuration, you must also export 
    all shared secrets and SQL server logging settings. Export of NPS server 
    configuration without shared secrets is not supported. 
 
    The exported file contains unencrypted shared secrets for RADIUS 
    clients and members of remote RADIUS server groups. Because of this, you 
    should ensure that the file is stored in a secure location to prevent 
    malicious users from accessing the file.