A CCNA certifications

CCNA(Cisco Certified Network Associate) certification is the entry certification system certification,Cisco is also the lowest level of the certification of technical certification.It's said that the people who take it have mastered the basic knowledge of networks.To get CCNA,you must pass a comprehensive examination(640-802),this exam teststhe installation and commissioning of small network capacity (including how to connect to the WAN and implementing network security).we need Interconnecting Cisco Networking Devices Part 1 (ICND1) v1.0 and Interconnecting Cisco Networking Devices Part 2 (ICND2) v1.0 prepare for the exam.