The SAMBADOM domain has been added as a trusted account to an existing domain called WIN3K. Which command should be run on the Samba server in order to establish the trusted relationship to the WIN3K

`net rpc trustdom add` is not the correct command for establishing an existing trust relationship; `establish` is the correct verb.

`net rpc addtrust` is not a standard or correct command syntax for establishing trust relationships in Samba.

The `net rpc trustdom establish` command is specifically designed to establish a trust relationship with a specified external domain, in this case, `WIN3K`. This command initiates the necessary RPC calls to the target domain controller to set up the secure channel required for trust.

`net rpc trustdom establish SAMBA` would attempt to establish trust with the local Samba domain itself, which is not the goal; the command needs to specify the *trusted* domain (`WIN3K`).