In the exam hall, Lucas sat before a table with a single small cube on it. The cube was a mini-computer—much like a communicator—but only contained the questions for the exams. It was a foolproof device that could relay and receive questions and answers within a second.
The cube achieved this by making the exam a silent one. All the examinee had to do was touch the cube and the questions would be projected into one's mind. The examinee would then mentally answer the questions and the cube would capture and process their brainwave signals, before sending the answers over to the main system. The main system would now compile the answers, score the students and record the results.
The cube could also take note of the changes in its surroundings, whether they be physical or astral. This would prevent the examinee from cheating even if they had a communicator with them.