【单选题】【消耗次数：1】
黑客通常采用的攻击方式中的欺骗是一种( )攻击。
①
字典
②
主动式
③
被动式
④
假登录程序
参考答案：
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拒绝服务攻击是黑客常用的攻击手段之一，以下属于拒绝服务攻击防范措施的是：（ ）
①
A.安装防火墙，禁止访问不该访问的服务端口，过滤不正常的畸形数据包
②
B.安装先进杀毒软件，抵御攻击行为
③
C.安装入侵检测系统，检测拒绝服务攻击行为
④
D.安装安全评估系统，先于入侵者进行模拟攻击，以便及早发现问题并解决
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Yes, it was rich and colorful
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No, it is interesting
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I like my college very much
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yes, it is.
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seems to be
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making
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lifelong
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formal
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useful
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available
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so is
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