Nice simple question.

I guess about two thirds getting it right is reasonable, as it's something a lot of people will not have come across. But currently 16% have picked "SMP" which startled me - evidently they don't see that S (Symmetric) and NU (NonUniform) are orthogonal/independent, as are MP (MultiProcessing) and MA (Memory Access). Unless they just don't know what the acronyms stand for.