Some programs lead to certification in operating certain network systems, such as a Microsoft Certified Systems Engineer (MCSE) or a Cisco Certified Network Associate (CCNA).

某些程序会导致某些网络操作系统认证系统，例如微软认证系统工程师（MCSE）或思科认证网络工程师（CCNA）。

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By constructing a solid foundation of Cisco knowledge at the CCNA level, you build the bridgework for a lifetime of career success.

构建了坚实的知识基础，思科在3%的水平，您一生为建立桥梁架设成功生涯。

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Starting with no Cisco certifications, I estimate about 250 hours of study to achieve CCNA R/S.

从没有任何思科认证开始，我估计大约需花250小时的学习时间才能得到CCNA路由和交换认证。

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As an example, to earn the most popular Cisco certification, called Cisco Certified Network Associate, or CCNA, a worker must take an exam, most likely administered by Pearson, the British-based publishing and education company.

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