i don't know what a real IQ test is like because i have never taken one before, but i do recognise most of the questions types (and i bet most people do): such as asking you rearrange letters, identifying the next number in a sequence, and so on. bascially, same question types, but with diferent numbers/words.
it is possible to score very high on this test (even though you have never taken the test before) with enough practice, because really, they are all routine bookwork. that's why i conclude that they can only access your processing speed at best.
if a real IQ test is similar to this, then i am disappointed.