As with the 300-540 premium membership, i got unlimited access and membership, i made a point to go for reattempts before giving the 300-540 certification exam. There are many aspirants who do not even give a single mock test attempt before the actual and when the performance is low, they crib about the test being tough. But i believe that however much knowledge i have about syllabus, practice attempts made me reveal chinks in my armour and that is quite necessary.