The Cisco Certified Technician Routing and Switching certification is a basic certification for professionals required to deal with cisco devices and systems. Applicants for this Cisco certification will develop the skills required for the onsite maintenance and support of Cisco routers, switches, and environments. Earning CCT Routing and Switching 100-490 RSTECH certification is recognized as the best basis for supporting other Cisco devices and systems. To earn this certification, applicants need to pass the Cisco 100-490 exam.