The firewall device is a()system for connecting a computer network to other computernetwork.。(2009上半年程序员上午基础知识真题解析)
The firewall device is a()system for connecting a computer network to other computernetwork.。(2009上半年程序员上午基础知识真题解析)
A、hardware
B、software
C、security
D、I/O
参考答案:C
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