The CCNA (Cisco Certified Network Associate) certification is awarded within the Information Technology field by Cisco. Cisco is the biggest networking organization in the world and concentrates in IoT or Internet of Things, Energy Management, and Domain Security. The organization also creates and markets superior telecommunication equipment, networking hardware and other world-class and futuristic products and services.
Cisco re-designed the CCNA course and program in the year 2013 and now it is ready in many different sub-specialties of networking. CCNA certification is now accessible in ten different technological fields. These involve wireless, service provider, security, routing and switching IoT, data centre, cyber-security, collaboration, cloud, and operations.
For detailed explanation read here:- CCNA Security – CCNA Voice – CCNA Wireless : Comparison