Basically, a firewall is a(145)process or a set of integrated processes that runs on a router or(146)to control the flow of netw

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问题 Basically, a firewall is a(145)process or a set of integrated processes that runs on a router or(146)to control the flow of networked application traffic(147)through it. Typically, firewalls are placed on the entry point to a(148)network such as the Internet. They could be considered traffic cops. The firewall’s(149)is to ensure that all communication between an organization’s network and the Internet conform to the organization’s policies.

选项 A、mole
B、pole
C、role
D、rule

答案C

解析 一般来说,防火墙是运行在路由器或服务器上的一个独立的或一组集成的处理器,用来控制流经它的网络应用程序信息流的。典型的防火墙位于像Internet这样的公共网络的入口处,可以将它们比作交通警察。防火墙的作用就是确保某组织的网络与Internet之间的所有通信符合该组织的安全政策。
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