Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. CCNA stands 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 one the Cisco Certified Entry Networking Technician (CCENT).

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