If you have passed your H12-221, H12-222 exams so you just need to take one exam H12-223 is enough to get certified by Huawei HCNP-R&S certification. H12-223 HCNP-R&S-IEEP exam covers PDIOI(Network Planning, Network Design, Network Implementation, Network Maintenance, Network Troubleshooting, Network Optimization) and Network Migration. No time to wait for testing H12-223 HCNP-R&S-IEEP dumps questions