Cisco Certified Network Associate (CCNA) Routing and Switching is a certification program for entry-level network engineers that helps maximize your investment in foundational networking knowledge and increase the value of your employer's network. CCNA Routing and Switching is for Network Specialists, Network Administrators, and Network Support Engineers with 1-3 years of experience. The CCNA Routing and Switching validates the ability to install, configure, operate, and troubleshoot medium-size routed and switched networks.
The best way to prepare for this certification is to take the Cisco training:
Interconnecting Cisco Networking Devices Part 1 (ICND1)
Interconnecting Cisco Networking Devices Part 1 focuses on providing the skills and knowledge necessary to implement and support a small switched and routed network.
Interconnecting Cisco Networking Devices Part 2 (ICND2)
This course focuses on using Cisco Catalyst switches and Cisco routers that are connected in LANs and WANs typically found at medium-sized network sites.
Interconnecting Cisco Networking Devices: Accelerated (CCNAX)
This training, consists of ICND1 and ICND2 content in it's entirety, but merged into a single course.