CCNA is an associate-level IT certification from Cisco. With the help of this certification, IT professionals can endorse their knowledge of understanding, contouring, operating and troubleshooting medium level routed and switched networks. Engineers with a background in networking are highly considered in the IT Industry and acquiring a certification of this level will enhance their chances of landing a nicely- paid job. There are a variety of CCNA courses available as per the needs of the candidates.
Cisco along with its partners offer a plethora of training methods that include the books that are published by Cisco Press and courses that are available online as well as offline. The topics under CCNA include how to connect to a WAN, network media, how to implement network security, network types and a lot many more technicalities. It teaches you what routing is, what the purpose of the data link is when network congestion can occur and also whether a bridge divides a network into smaller sections.