PATH_PREFIX clause in CREATE PLUGGABLE DATABASE

The PATH_PREFIX clause is used as a prefix to the relative paths for directory objects and certain parameters associated with the new created PDB.Its' use for directory objects is easy to understand . But how can it impact the pdb's parameters ? which parameter is under control of the directory that follow PATH_PREFIX.I use the following sql statement to find out all the parameters a pdb can modify itself,But it seems none of them is of this kind.
If you have some ideas ,please share. Thanks