What is CCNA? CCNA (Cisco Certified Network Associate) is a popular certification for computer network engineers provided by the company named Cisco Systems. It is valid for all types of engineers including entry-level network engineers, network administrators, network support engineers and network specialists. It helps to become familiar with broad range of networking concepts like OSI models, IP addressing, Network security, etc. It is estimated that more than 1 million CCNA certificates have been awarded since it was first launched in 1998. The CCNA certificate covers a broad range of networking concepts. It helps candidates to prepare for the latest network technologies they are likely to work on. Some of the common topics covered under CCNA certification include: OSI models IP addressing WLAN and VLAN Network security and management (ACL included) Routers / routing protocols ( EIGRP, OSPF, and RIP) IP Routing Network Device Security Troub
