The NCT grade examination has a clear scoring standard system. After strict demonstration and design by front-line experts in programming education, the test grade conforms to the psychological characteristics and academic adaptability of teenagers at different learning stages. Under the guidance of the goal of grade examination, each grade examination is equivalent to quantitatively decomposing a long-term learning goal of system programming into a clear short-term goal, which can effectively help candidates to arrange their learning plans reasonably and guide their thinking ability to gradually improve.

At present, the NCT proficiency test is designed into multiple levels according to the requirements of different ability levels, covering two categories: graphical programming (1-3 level) and Python programming (1-4 level). The design of question bank is rigorous and meticulous, and the difficulty of examination is gradually improved. Students need to apply step by step according to the grade system.