When the ApplyOnly mode is set, DSC will apply the configuration and do nothing further unless a new configuration is deployed to the target node. Note that this is a completely new configuration, not a refresh of the currently applied configuration. If the target node's configuration drifts or changes, no action will be taken by DSC. This is useful for a one-time configuration of a target node or in cases where it is expected that a new configuration will be pushed at a later point, but some initial setup needs to be done now. This is not a commonly used setting.