838 computer technology foundation, although the course name involves four subjects, in the actual exam, we focus on reviewing the course of data structure. In Hohai University's 2020 postgraduate exam, the score of computer network and operating system design is only about 40.

408 is a national unified examination, which belongs to the national unified examination. The inspection range of 408 is determined. See the exam syllabus for details, which is required all over the country.