Highly recommend!

I prepared for Developer for Apache Spark - Scala exam for about 2 months and then failed in my 1st attempt! (by few points). I came across certfun then I thought of giving a try. I am glad that I made the right decision, the practice questions helped me in brushing up and as well as helped me in identifying my mistakes. I kept practicing for few weeks and also reading the training materials to be proficient in all the topics! Eventually I attempted 2nd time and cleared the exam scoring 81%! Thanks a lot certfun and highly recommend! Remember that you still need to read the training materials and practice the subject in the sandbox.