问题

●防火墙技术可以分为 (65) 等3大类型。

(65) A.包过滤、入侵检测和数据加密

B.包过滤、入侵检测和应用代理

C.IP过滤、线路过滤和入侵检测

D.IP过滤、线路过滤和应用代理

参考答案
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