Cisco Systems, Inc. (NASDAQ: CSCO, SEHK: 4333) is an American multinational corporation that designs and sells consumer electronics, networking and communications technology and services. Headquartered in California.
Cisco Systems also sponsors a line of IT Professional certifications for Cisco products. There are five levels of certification: Entry, Associate, Professional, Expert, and recently Architect, as well as eight different paths, Routing & Switching, Design, Network Security, Service Provider, the newly introduced Service Provider Operations, Storage Networking, Voice, and Wireless.
CCNA is the initialize for the Cisco Certified Network Associate certification from Cisco. In speech and in writing, this certification is properly referred to by the initials CCNA rather than the full name.
CCNA certification is a second-level Cisco Career certification. CCNA certification validates the ability to install, configure, operate, and troubleshoot medium-size routed and switched networks, including implementation and verification of connections to remote sites in a WAN. To achieve CCNA certification, one must earn a passing score on Cisco exam #640-802, or combined passing scores on both the ICND1 #640-822 and ICND2 #640-816 exams. Passing the ICND1 grants you the Cisco Certified Entry Networking Technician (CCENT).