Regarding OCP training in Oracle Bone Inscriptions, I suggest you go to official website, Oracle Bone Inscriptions to inquire about WDP authorized training partners. You must have a training record authorized by the original factory to obtain OCP and OCM certificates. Please remember this. First of all, you have to have a certain linux foundation. Recommended Beijing Shangguan and Wuhan Tian Yu; The courses of system operation and maintenance are all well done.