CCNA200-120 chapter relationship
CCNA-RS has a total of eight chapters, the logical relationship between the eight chapters can be compared to the pyramid:
The bottom two chapters are OSI and IPv4/6, which are the basics of understanding the following chapters.
Based on the previous two chapters, the upper layer is divided into three parts: LAN switching, IP Routing and WAN
The top layer is divided into two parts: IP services based on Routing, Device Security based on LAN and Routing, and troubleshooting based on the entire second layer.
