work( ),systems that effectively isolate

练习题库2022-08-02  100

问题 work( ),systems that effectively isolate an organization's internal network structure from an (请作答此空) 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.exteriorB.InternalC.centerD.middle

选项 A.exterior
B.Internal
C.center
D.middle

答案 A

解析 掌握基本词汇,本题还是比较容易的。参考翻译如下:
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