Hmm! Pre-job training in public institutions, I don't know what you mean by passing the exam, and then unit training is still qualified training in public institutions. Generally speaking, the latter is more common, that is, to participate in training in order to enter the organization. The training content is public basic knowledge and administrative ability test (similar to civil servants), including logical reasoning, official document writing and judgment. These things are trained to enter institutions. You can go to work without training. Well-known such training schools include Hainan Airlines, Zhonggong, Tuhua and einsun.

If you are admitted to a public institution, the content of the training is business knowledge, etiquette and so on. That is, about work, that is, business ability. You can go to work after training.