Is the school job fair reliable?

It's quite reliable, but there are too many people submitting resumes. Try to interview, and the probability of success is high.

Our company sells employees at job fairs every year.

Of course, after receiving your resume, you have to screen it many times. Some people don't have an interview.

There are many people at the exhibition, and it is not excluded that some people do not recruit people just to advertise.