Since now i am planning to appear for OCA/OCP, can I still use this class certificate to appear for OCP ? ... Or is it too late now ???If you still have the information for that class (when you attended, etc.), then you can still use it. Oracle has to be able to verify that you attended the course. It will only be valid for the 10G DBA OCP, though, not for 11G. However, you can get the 10G OCP and then take the upgrade test for 11G if you wish.