全面分析接触CCNA_CCIE大全(经典珍藏版)

Cisco认证是互联网界具有极大威望的网络技术认证.其全体认证系统包含路由和交换网络支持(售后工程师认证系统),路由和交换网络方案(售前工程师认证系统)和广域网交换网络方案和支持几大部分

(Cisco certification is a network technology certification with great prestige in the Internet industry. Its overall certification system includes routing and switching network support (after-sales engineer certification system), routing and switching network solutions (pre-sales engineer certification system) and WAN switching network solutions and support how many parts)

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