The H3CSE Routing & Switching certification is a testament to an individual’s mastery of the theoretical knowledge and operational skills required to deploy campus networks. To obtain the H3CSE Routing & Switching certification, candidates are required to complete three courses: GB0-371: Building H3C High-Performance Campus Network V2.0 GB0-381: H3C Large-Scale Network Routing Technology V2.0 GB0-391: