When you do your MCSD you can take C++ options.
Looking at al teh exams you have listed above, they are all Manufacturer specific, not necessarily language specific.
I'd guess that as it is taught at universities and colleges, most of the institutions that could implement a C++ certificate don' see the need. But as Java is relatively new, there is a need for people that have already qualified to prove that they have a certain level of competence.
K