Hi friend!
Don't you mean HCIA? You can learn more about the content of HCIA R&S on the Huawei exam certification page, as well as searching for HCIA-related content on our Forum.
Website for HCIA:
https://e.huawei.com/en/talent/#/cert?navType=authNavKey.
This course is the basic course for Routing & Switching engineers. You will study the following curriculum: network fundamentals, basic connection methods of popular networks, basic network construction, troubleshooting of common network faults, installation and commissioning of Huawei routing and switching devices.
More information can be found via the below link:
https://ilearningx.huawei.com/portal/courses/HuaweiX+EBGTC00000385/about.
Hope this helps!