2. Archaeology and cultural relic appraisal and restoration are different. One focuses on archaeological academic research, and the other focuses on the collection of thousands of documents.
3. According to your hobbies, archaeology, museology, cultural relic identification and restoration are all available majors. There are many archaeology, not to mention several key universities such as Peking University and Fudan University. Northwest University is famous for its archaeology. Sichuan University is not bad, and so is Jilin University and Shandong University. As far as I know, the undergraduate courses of cultural relics identification and restoration include Central Academy of Fine Arts, Nanjing Art College and Capital Normal University. This major has many levels, but not many undergraduate courses.
I recommend you to study archaeology, not the identification and restoration of cultural relics.
5. Undergraduate course is basically difficult to enter. At present, libraries and museums are all career-oriented, so it is difficult to enter. You should at least get a master's degree from a well-known school. Doctor, of course, you are basically free to choose some cultural and artistic units or library units that are not particularly famous.