The use of network（）,systems that effe

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问题 The use of network（）,systems that effectively isolate an organization's internal network structure from an（）network, such as the INTERNET is becoming increasingly popular. These firewall systems typically act as application-layer（）between networks, usually offering controlled TELNET, FTP, and SMTP access. With the emergence of more sophisticated（）layer protocols designed to facilitate global information discovery , there exists a need to provide a general （）for these protocols to transparently and securely traverse a firewall.A.networkB.sessionC.transmissionD.application

选项 A.network
B.session
C.transmission
D.application

答案 D

解析随着网络（）的使用，系统有效地将一个组织的内部网络结构与（）网络相隔离，使得像互联网网络就变得越来越受欢迎。这些防火墙系统通常用作网络之间的应用层（），通常提供受控的TELNET，FTP和SMTP访问。随着旨在促进全局信息发现的更复杂（）层协议的出现，需要为这些协议提供通用（），以透明和安全地穿越防火墙。
A．网络
B．会话控制
C．传送
D．应用

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本试题收录于：初级网络管理员题库软件水平考试初中高级分类

初级网络管理员

软件水平考试初中高级

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