The graduation certificate is unified nationwide.
There is no fixed number of years for the self-study exam, and you can graduate as long as you pass all the subjects in your major. The diploma is a national unified version, and there are no two self-taught diplomas. You can check the total score and passing rate on the national website with the graduate admission ticket to know the real graduation time and passing situation.
View graduates' files
The most important thing to distinguish between the true and false self-taught exams is to look at the graduate files of colleges and universities. Powerful institutions should be able to provide a large number of complete and true files for self-taught graduates of about 12 months. If an institution claims that it has been educated for many years, but it can't produce or can only produce a few graduates' files, or these graduates will have to take exams for several years before they graduate, then the propaganda of this institution is likely to be false.
Look at the actual results and documents.
Remember, the self-study exam can't be passed by mouth, it depends on the actual results and files. Therefore, when choosing institutions, we must be cautious and do more investigations and comparisons to ensure that our interests and rights are protected.