Cisco Certified Network Associate Basics 作为CCNA的专业人才将能够安装，调试和运作局域网(LAN)，广域网(WAN)，
和拨号网络服务给小型网络(一般来说100个节点或更少).同时能够操作IP；
IGRP；IPX；Serial；AppleTalk；Frame Relay；IP RIP；VLANs；RIP；Ethernet；Access List等网络协议。
CCNA 必备条件 CCNA考试 & 推荐CCNA培训课程 考试 (考试号 640-801)
Cisco Certified Network Associate Basics Interconnecting Cisco Network Devices CCNA 重新认证 CCNA认证证书的时效性是三年。
要重新更新证书,必须通过目前的CCNA考试 (如果通过CCNP的考试,CCNA认证证书会被自动更新)

下面分别是两组下载地址,如果其中有某集不好下载,你可以用另一组试试,内容都是一样的

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http://www.ciscohuawei.com/download/ccna/ccna视屏教程/CCNA01.rar
http://www.ciscohuawei.com/download/ccna/ccna视屏教程/CCNA02.rar
http://www.ciscohuawei.com/download/ccna/ccna视屏教程/CCNA03.rar
http://www.ciscohuawei.com/download/ccna/ccna视屏教程/CCNA04.rar
http://www.ciscohuawei.com/download/ccna/ccna视屏教程/CCNA05.rar
http://www.ciscohuawei.com/download/ccna/ccna视屏教程/CCNA06.rar
http://www.ciscohuawei.com/download/ccna/ccna视屏教程/CCNA07.rar
http://www.ciscohuawei.com/download/ccna/ccna视屏教程/CCNA08.rar
http://www.ciscohuawei.com/download/ccna/ccna视屏教程/CCNA09.rar
http://www.ciscohuawei.com/download/ccna/ccna视屏教程/CCNA10.rar
http://www.ciscohuawei.com/download/ccna/ccna视屏教程/CCNA11.rar
http://www.ciscohuawei.com/download/ccna/ccna视屏教程/CCNA12.rar
http://www.ciscohuawei.com/download/ccna/ccna视屏教程/CCNA13.rar
http://www.ciscohuawei.com/download/ccna/ccna视屏教程/CCNA14.rar
http://www.ciscohuawei.com/download/ccna/ccna视屏教程/CCNA15.rar
http://www.ciscohuawei.com/download/ccna/ccna视屏教程/CCNA16.rar
http://www.ciscohuawei.com/download/ccna/ccna视屏教程/CCNA17.rar
http://www.ciscohuawei.com/download/ccna/ccna视屏教程/CCNA18.rar
http://www.ciscohuawei.com/download/ccna/ccna视屏教程/CCNA19.rar
http://www.ciscohuawei.com/download/ccna/ccna视屏教程/CCNA20.rar

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ftp://down2.315safe.com/ccnarmvb20/ccna02.rar
ftp://down2.315safe.com/ccnarmvb20/ccna03.rar
ftp://down2.315safe.com/ccnarmvb20/ccna04.rar
ftp://down2.315safe.com/ccnarmvb20/ccna05.rar
ftp://down2.315safe.com/ccnarmvb20/ccna06.rar
ftp://down2.315safe.com/ccnarmvb20/ccna07.rar
ftp://down2.315safe.com/ccnarmvb20/ccna08.rar
ftp://down2.315safe.com/ccnarmvb20/ccna09.rar
ftp://down2.315safe.com/ccnarmvb20/ccna10.rar
ftp://down2.315safe.com/ccnarmvb20/ccna11.rar
ftp://down2.315safe.com/ccnarmvb20/ccna12.rar
ftp://down2.315safe.com/ccnarmvb20/ccna13.rar
ftp://down2.315safe.com/ccnarmvb20/ccna14.rar
ftp://down2.315safe.com/ccnarmvb20/ccna15.rar
ftp://down2.315safe.com/ccnarmvb20/ccna16.rar
ftp://down2.315safe.com/ccnarmvb20/ccna17.rar
ftp://down2.315safe.com/ccnarmvb20/ccna18.rar
ftp://down2.315safe.com/ccnarmvb20/ccna19.rar
ftp://down2.315safe.com/ccnarmvb20/ccna20.rar

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