NetXploreIt server collects device running configuration (applies for Cisco devices) over TFTP. The collected configuration files are retained until the subsequent collection cycle where they will be overwritten with the newer  files. In case a device is no longer available, its already collected configuration will be retained on the server. 

To display a configuration file, use the “show config ip x.x.x.x” command, replacing the “x.x.x.x” with the required device management IP address.