I was very pleased with JQPlus. I took 3 or 4 sample tests, then the random
test, then took a custom test with all the
Thread questions (about 37 questions on Threads, that was one of my weaknesses).
Note that there are other active JQPlus threads out there (cert results and cert study) and I put my results in one of those. (Sorry I haven't been able to do the fancy links successfully)
I was a little disappointed to get questions outside the current objectives on the JQPlus tests, though. There is more than one question on HTML codes to call an
applet. I think there was a MediaTracker question, too. I'm not saying this is a reason not to use JQPlus, it's more of a buyer beware.
The JQPlus questions have lots of code sample questions. As far as the level of the questions goes I'd have to take a look at some of the questions again. All the mocks have started to blur in my mind.
I found the certification exam less tricky than the mocks in general. Not that the questions didn't have tricks and traps in them, the trick just wasn't in the question. On mocks I'd occasionally miss a question just because there were a list of true statements and I picked the true ones but the question had asked for the false ones. I don't remember any questions like that on the exam. Or perhaps I just read the questions more carefully on the exam? :-)