Generally, the academic qualifications filled in the resume are based on the highest academic qualifications. Now that you have passed the college entrance examination and graduated through study, the degree filled in your resume is undergraduate.

As for the highest education, the first education and the second education, it is actually very simple. If you have a diploma from your university, just fill in one. If you finish college, take another master's degree, another major, and then a deeper doctor's degree, you can fill it out according to your level.