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DoS (Denial of Service), its principle is very simple, is to use the machine in our hand to send requests to the server, if the server in our hand has better performance than the server's host in all aspects, then when we send a large number of requests to the server, occupying the server's resources, resulting in the server has no ability to process other user requests.Depending on the profession you intend to enter, you can choose a single course, certificate certification, or diploma in a certain field, such as network or program. The best plan for learning is to weigh your strengths and weaknesses, and then purposefully find and choose schools. The second half of this series will introduce in detail how to choose IT schools.　　充满死亡气息的警报响起，随之而来的海啸将为习惯了快乐慵懒生活的人们带来前所未有的黑色记忆……The reason why the traditional portal has high-quality content and fast response is that it has invested a lot of editing and has morning and evening shifts. This can solve the problems of timeliness and professionalism, but this model is very heavy and depends too much on people and numbers.他身边坐着个年轻的军士，看上去顶多不过十四五岁，很是秀气，腼腆地笑道：俺们在家都没吃的呢，到了这总算不用挨饿了。古美门（堺雅人 饰）是个思考方式出格的律师，因为某意想不到的事件，正义感十足的新人律师黛（新垣结衣 饰）开始到古美门律师事务所工作，性格、想法完全相反的二人不断发生冲突，同时也在法庭上携手战斗。不知这样的二人将谱出怎样一首职场故事与情感故事交织的乐章……这不会影响阅读的，已经看过的书友也不用再回去看了。