From the Prometric we could know H12-421 only could be taken in Chinese language version. If you need HCNP-DCF-BFDO certification you also could select H12-451-ENU English language version. Know the H12-421 exam content before taking your H12-421 exam test. HCNP-DCF-BFDO exam includes but is not limited to: data center infrastructure development trend introduction, Huawei data