关于SMURF攻击的问题，求大神帮忙

江南烟雨2014

感觉这道题可以选B和F两个
6 r5 k# T* k8 u8 u; n2 H5 R. }Which statement is true a SMURF attack?
A. The attacker uses spoofed destination address to launch the attack
B. It sends ICMP Echo Requests to a broadcast address of a subnet
( G: ~& P; o, BC. In order to mitigate the attack you need to enable IP directed broadcast on the router interface
  ~+ M% Z3 c3 D& c- hD. It sends ICMP Echo Replies to Known ip addresses in a subnet
: ?, ~. N; f& k7 CE. It is used by the attackers to check if destination addresses are alive
F. It exhausts the victim machine resources with large number of ICMP Echo Requests from a subnet

SMURFAttack 是一种病毒攻击，以最初发动这种攻击的程序“Smurf”来命名。这种攻击方法结合使用了IP欺骗和ICMP回复方法使大量网络传输充斥目标系统，引起目标系统拒绝为正常系统进行服务。

Smurf攻击通过使用将回复地址设置成受害网络的广播地址的ICMP应答请求(ping)数据包，来淹没受害主机，最终导致该网络的所有主机都对此ICMP应答请求做出答复，导致网络阻塞。更加复杂的Smurf将源地址改为第三方的受害者，最终导致第三方崩溃。

8 u$ r! C6 T) h5 ^6 C: o通过以上判断这道题应该是多选题，哪位大神给看一下，谢谢了~

pengwu

F is the answer

vc2404068

学习学习

daniell76

蓝精灵攻击