Question and Answer: 225

The H12-221 exam is a professional-level certification offered by Huawei. It is intended for individuals who want to demonstrate their knowledge and skills in configuring and maintaining internet protocol (IP) based Ethernet-based routed and switched networks.
H12-221 exam covers a wide range of topics, including routing protocols (OSPF, IS-IS, BGP), advanced switching technologies (VLAN, STP, RSTP, MSTP), Quality of Service (QoS), network security (Firewall, VPN, ACL), and network management (Huawei eSight, NMS). It also tests the candidate's understanding of IPv6, MPLS, and VXLAN technologies.
The H12-221 exam is designed to test the candidate's ability to apply the knowledge they have learned to real-world scenarios. 
Earning the HCIP-Routing & Switching-IERS certification demonstrates a candidate's ability to plan, design, configure, and maintain complex enterprise IP networks. It is a valuable asset for network engineers and administrators working in enterprise environments or for network consulting and integration companies. Successful completion of this exam is a prerequisite for the HCIE-R&S (Huawei Certified Internetwork Expert-Routing & Switching) certification.