The Developer exam is a multiple-choice format exam with 70 questions. If you pass the exam you also get certified as Designer.
You can register and take the exam in any Pearson Vue cirtified center.
This link might help you
You can also take some free practice questions for the exam here: http://www.qlik.com/us/services/training/find-your-training?region=&city=&language=&ce=1&q=practice
You can register for the exam at one of the many Pearson VUE testing centers in your area here: QlikView :: Pearson VUE