When preparing to install a System WPAR using NIM, what action must occur before the planned WPAR can be successfully defined as a NIM client?

AIX must already be running on the global LPAR to host a WPAR, so this is a prerequisite long satisfied before WPAR definition, not the immediate required action.

DNS hostname registration aids name resolution but is not a mandatory NIM prerequisite for defining a WPAR as a NIM client.

NIM manages System WPARs through their host AIX global environment LPAR. The NIM server must first have the global LPAR defined as a NIM client so it can communicate with and manage WPARs running within that LPAR. Without this prerequisite, NIM has no path to reach or define the WPAR as a client.

An lpp_source resource is used during NIM software installations, but creating one with WPAR-specific files is not required merely to define the WPAR as a NIM client.