This is a really strange question. I don’t understand it at all. AFAIK there are only VA and CVA (compiled vertex arrays).
Perhaps it is just (very) badly worded and they want to know about pre defined vertex attribute arrays specified by glXYZPointer functions (with XYZ != VertexAttrib) but this is only a (very) wild guess.
Hmmm the question was in the list or my teacher uses the wrong terminology or there must be some kind of logical explanataion. Does anybody else got an idea what the answer could be please?