Online examination system. In the national education platform, the application to realize the accurate evaluation of online examination can be "online examination system" or "remote invigilation system". National education platform generally refers to the national digital education resources public service platform, which is a national education service platform based on the national basic education resources network. With the help of modern science and technology, it promotes the balanced development of education by providing various teaching services and teaching resources to schools, teachers, students and parents.