Level 1 is assessed by a one-hour-long, 60 question, multiple-choice examination. Level 2 is assessed by a 3-hour and 15 minute written examination, consisting of three questions: one compulsory question and two questions selected from four optional questions. Level 1 is not a pre-requisite for Level 2, and the Level 2 certificate can be obtained without having the Level 1 certificate. However, the Level 2 certificate examination assumes that the candidate has the prior knowledge required to pass the Level 1 certificate examination.