I have no idea what this is. I never had to take an exam for my foreign expert certificate.
The Foreign Expert Certificate is what's needed to get a Z Visa in China. For teachers, it's required that you have a bachelors degree with two years of working experience. However, they generally waive the two year working requirement if you have a post graduate degree.
I know Humdinger is very particular about this, but I don't actually have my foreign expert certificate. I have copies of it, but I don't have the original. Because like Humdinger has pointed out before, they keep telling me I can't have it.