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The observer pattern defines a one-to-many dependency, allowing multiple observer objects to listen to a topic object at the same time.In the case of a reflection attack, An attacker uses a controlled host to send a large number of packets, What makes these packets special is that, The destination IP address points to the server, router, and other facilities that act as reflectors, while the source IP address is forged as the target IP address, When the reflector receives the data packet, it will think whether the data packet is requested by the attack target, so it will send the corresponding data to the attack target. When a large number of response data packets flock to the attack target, it will deplete the network broadband resources of the target, resulting in denial of service attacks.馨馨，新闻学院那边帅哥可是很多的，不去可不要后悔哦。该剧为SBS翻拍MBC 2004年播出的人气电视剧《火鸟》，改编为晨间剧。讲述的是一段昔日怨偶因贫富悬殊而分手，数年后重逢并相知相惜再度牵手的爱情故事。由原版编剧李有珍执笔。该剧根据Frank Miller及Tom Wheeler所著的未出版同名青年向小说改编，采用Nimue的角度描述亚瑟王的传奇，她注定会成为强大但悲剧的湖中妖女/Lady of the Lake；剧情讲述Nimue母亲过身后，她意外地与年轻的雇佣兵亚瑟成了伙伴，他们将结伴找寻梅林并递交一把古老的剑。而在旅程当中，Nimue将成为对抗乌瑟王及红色骑士团的象征人物。车夫在外面暗暗叫好，主子这招太妙。