74、关于防火墙技术，说法正确的是______。A.防火墙不可能防住内部人员对自己网络的攻击B.防火墙的主要功能是预防网络病毒的攻击C.防火墙可以预防住所有外部网络对内网的攻击D.个人计算机没有必要安装防火墙 - 查题网

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高等继续教育 / 计算机统考

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74、关于防火墙技术，说法正确的是______。
A.防火墙不可能防住内部人员对自己网络的攻击
B.防火墙的主要功能是预防网络病毒的攻击
C.防火墙可以预防住所有外部网络对内网的攻击
D.个人计算机没有必要安装防火墙

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