单选

下面关于sniffer的说法中不正确的是(53)。

  • A.sniffer是一种常用的收集有用数据的方法,这些数据可以是用户的账号和密码,可以是一些商用机密数据等
  • B.Sniffer程序可以监听不同网段的主机
  • C.必须以root的身份使用sniffer程序
  • D.以太网sniffing是指对以太网设备上传送的数据包进行侦听,发现感兴趣的包
参考答案
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