Hello, Peter. I remember some of the questions seemed similar, however, you must know the concepts and fundamentals. Memorization wont't work. Some of the questions I encounter I had never seen before. I mean some real tricky ones. So, you have to get down to basics and really know the fundamentals, that's the only way you can pass that
test unless you're very lucky. I have JQPlus and I love it. It was $20 dollars well spent. My opinion is this, If your scoring between 80 - 90 with JQPLus and mixing it up with other mocks and your scoring well on those then you're probably ready. Relax and take it easy, you'll do fine.
Good Luck,
Donald