The post protection system of Guangdong Tuhua national examination or provincial examination refers to a kind of protection policy implemented by the interview training remedial class for the positions that students apply for during the enrollment process. The specific implementation method is: for any recruitment position in the national or provincial examination every year, all closed classes, agreement classes and VIP classes (that is, classes of six days or more) are enrolled in the enrollment process according to the equal ratio of 1: 1. That is, the total number of students enrolled does not exceed the number of applicants for this position, and there is no geographical restriction. The statistics of enrollment information are unified nationwide, and the national enrollment is truly realized 1: 1. For example, candidate Zhang San applied for the technical post of Zhanjiang Customs. The position is recruited by 1 person, and the interview finalist ratio is 1:5. Four other candidates were shortlisted for the interview with Zhang San. If Zhang San signs up for the closed class of Zhanjiang Tuhua for six days, then according to the post guarantee system of 1: 1, the other four candidates who have been shortlisted for this position will lose their registration qualifications in Tuhua branches and learning centers (such as Maoming or Guangjiao Department) and can no longer participate in the interview counseling of closed interview classes, agreement classes and VIP classes. The fundamental purpose of post protection is to provide higher quality service for candidates, prevent graffiti students from crashing into the examination room, improve the passing rate of students attending graffiti remedial classes, and maximize the interests of students.