Undergraduate education is a very broad issue. Distance correspondence undergraduate course belongs to undergraduate education. Among them, undergraduate education includes adult college entrance examination, self-study examination, distance correspondence and other forms.
Most adult education is compared with full-time undergraduate education. The final result is the difference of the final diploma. Full-time students do not have such words as self-study, online education and adult.
Every way to get a degree is different, so I won't explain the details one by one. Please help me if you have any other questions. V is 496 first, then 59947.