Edusum practice exams are very challenging

hii friends
I found pdf files very easy and boring. What made me sit and notice the C1000-003 IBM practice tests on the site edusum.com is their random order. The questions for IBM Mobile Foundation v8.0 Application Development were very challenging. They had shuffled multiple choice answers which made me think more and attempt the question very carefully. This way, i never forgot the answer and gave the actual exam with 100% confidence.