In order to safeguard the security of network information system, the network vulnerability detecting system is worth of thorough research.

为了保障网络信息系统的安全，必须对网络漏洞探测系统进行深入的研究。

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The various elements that affect the security of network information system were analyzed. The feasible and practical solutions were put forward.

本文分析了计算机网络信息系统面临的各种不安全因素，并提出了切实可行的解决方案。

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Specifically, the wisdom of the city may encounter information security issues are divided into network security, system security, data security and integrated security.

具体而言，智慧城市可能遇到的信息安全问题分为网络安全、系统安全、数据安全和综合安全。

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The NYPD also maintains a "Ring of Steel, " a network of 4, 000 sophisticated security cameras that feed information into a central monitoring system to detect questionable or unlawful activity.

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