我们又应该如何来判断办公网络的安全级别呢(尽管您可能有一个网络管理员在管理网络)？

How do you determine the level of security in your office network, even if you have a network administrator manning it?

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早期网络一般未考虑将不同安全级别和类型的业务分离管理，未考虑网络服务质量。

Early networks generally did not consider different security levels and types of business from management, did not take into account the network quality of service.

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