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）。

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).

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他12岁时，就被微软公司认证为合格的系统工程师，成为最年轻的系统工程师之一。

When he was 12, Microsoft certified Derek as a qualified systems engineer, one of the youngest ever.

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