CCNA is an IT certification from Cisco. CCNA certification is an associate-level Cisco Career certification.There are now several different types of Cisco-Certified Network Associate, with "CCNA Routing and Switching" being closest to the original CCNA focus; other types of CCNA focus on security, collaboration, datacentres, service providers, video, voice, and wireless.[2] The content of the exams is proprietary.[3] Cisco and its learning partners offer a variety of different training methods,[4] including books published by Cisco Press, and online and classroom courses available under the title "Interconnecting Cisco Network Devices."