High Majority of students clear PECB Exam in 2 attempts and Every student gets 2 attempts at PECB exams, when you enroll with SMATICA. If you failed for 2 times, then you can retake the PECB Exams 3rd attempt after waiting for 3 months. But for 3rd and 4th attempt at PECB Exam, you need to re-enroll with SMATICA by paying the PECB self-study training and examination fee of your course.