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1、单击此处编辑主标题,单击此处编辑幻灯片副标题,正文标题,第一级第二级 第三级第四级第五级,标题,正文部分样例A正文部分样例B正文部分样例C正文部分样例D正文部分样例I正文部分样例II正文部分样例III,样例文本A,Gemmi Cong 精美PPT模板尽在如下豆单欢迎大家欣赏和下载,样例文本B,An unstructured P2P network is formed when the overlay links are established arbitrarily.Such networks can be easily constructed as a new peer that wants
2、 to join the network can copy existing links of another node and then form its own links over time.In an unstructured P2P network,if a peer wants to find a desired piece of data in the network,the query has to be flooded through the network to find as many peers as possible that share the data.The m
3、ain disadvantage with such networks is that the queries may not always be resolved.Popular content is likely to be available at several peers and any peer searching for it is likely to find the same thing.But if a peer is looking for rare data shared by only a few other peers,then it is highly unlik
4、ely that search will be successful.Since there is no correlation between a peer and the content managed by it,there is no guarantee that flooding will find a peer that has the desired data.Flooding also causes a high amount of signaling traffic in the network and hence such networks typically have v
5、ery poor search efficiency.Many of the popular P2P networks are unstruct,样例文本C,在日本，根据日本现行著作权法，日本境内一切免费提供商业软件/或其他数据下载的网站均属非法。违法情节严重的可被判处有期徒刑，同时处以罚款。BitTorrent系列软件和eMule均被禁止。但是，P2P技术在日本仍然流行。这多亏了Share和Winny软件的发明。这两款软件都采用了IP加密和数据加密的技术，目前日本有几百万人使用这两款软件来交流动画，游戏，音乐，软件等数据，但显然警方已经掌控了追查用户的方法。2008年5月9日，三名在share上发布大量版权保护作品的职人遭到逮捕。这两款软件的流行也带来了一些负面问题，比如机密资料的泄漏和计算机病毒的传播。,内 容 概 览,公司发展,交 互 图,状态图,内容 C,内容 B,内容 A,关 系 图,A结点,D结点,C结点,B结点,A,B,C,D,关系,A结点,C结点,项目图,B,YYYYYYYYYYYYYYYYYYYYYYYY,C,ZZZZZZZZZZZZZZZZZZZZZZZZZZ,B,C,项 目 图,影响分析图,影响3,影响2,影响1,项 目 图,Thank you！,
