Human beings are error-prone but computers are not. In fact, your scores are recorded the moment you click the submit button.
The biggest advantage of writing a CBT exam is that it takes less than a second for a computer to mark your scripts. JAMB questions are objective type, for this reason, it only made sense that the questions should be computer-based. The JAMB Computer-based test was introduced in order to eliminate the use of papers when writing the exam. What is the JAMB CBT and why is it important?