Because the positions and requirements recruited each year are different, the specific positions applied for are subject to the latest position table. You can apply for a professional position, or you can apply for an unlimited professional position.
On the other hand, it usually takes only about one month from the announcement of civil servants to the registration examination, and the preparation time after the announcement is very tight, so it is difficult to get good results in the written test. It is recommended to prepare for the exam in advance.