Cisco Systems, Inc. is a leading supplier of communications and computer networking products, systems, and services. The company's product line includes routers, switches, remote access devices, protocol translators, Internet services devices, and networking and network management software, all of which link together geographically dispersed local area networks (LANs), wide area networks (WANs), and the Internet itself. Cisco serves three main market segments: large organizations, including corporations, government entities, utilities, and educational institutions; service providers, including Internet service providers, telephone and cable companies, and providers of wireless communications; and small and medium-sized businesses whose needs include operating networks, connecting to the Internet, and connecting with business partners. Increasingly, Cisco's products are appearing in the consumer marketplace. Cisco operates globally, deriving roughly 44 percent of its sales from overseas business.(Link).
IT essentials
Cisco's IT Essentials: PC Hardware and Software curriculum introduces the skills needed to help meet growing demand for entry-level information and communication technology (ICT) professionals. It covers the fundamentals of PC technology, networking, and security, and also introduces advanced concepts.
CCNA
CCNA (Cisco Certified Network Associate) is an IT certification from Cisco. CCNA certification is an associate-level Cisco Career certification.
The Cisco exams have changed several times. In 2013, Cisco announced an update to its certification program that "aligns certification and training curricula with evolving industry job roles."[1] 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."
CCNP
CCNP
Cisco Certified Network Professional (CCNP) Routing and Switching certification validates the ability to plan, implement, verify and troubleshoot local and wide-area enterprise networks and work collaboratively with specialists on advanced security, voice, wireless and video solutions.