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Provides a global access point. Q: How will it be realized? A: Create a static method that returns this class of objects23. Skills Competition and Performance AppraisalDDOS attacks mainly occur in the network layer. Its most obvious characteristic is to send a large number of attack packets, consume network bandwidth resources and affect normal users' access. At present, the detection and defense technology for DDOS attacks in the network layer is quite mature, and at the same time, some new attack methods-DDOS attacks in the application layer have emerged. Different from network layer DDOS attacks, application layer DDOS attacks mostly imitate the access behavior of legitimate users and will not generate a large number of attack data packets during data transmission, but they will consume server resources through a large number of database queries and other operations, which is more difficult to detect. According to the different attack modes, DDOS attacks include reflection amplification attacks in addition to ordinary flooding attacks. This type of attack often uses a legitimate server as a reflector, which sends a large number of data packets to the target, thus causing greater harm. At present, DDOS attacks against DNS servers are also common. Attackers often send fake domain names to DNS servers, consuming DNS server resources. At the same time, due to the recursive query mechanism in DNS servers, DDOS attacks against DNS servers have a large impact range.很快，让林瑶惊讶的事出现了，所谓的《倚天》中第一美女黛妮思出来了。陈启，巫到底是什么？吕馨突然问道。在某小型玩具公司供职的大道寺保（远藤宪一 饰）是一个勤勤恳恳甚至有些憋屈窝囊的中年男子，他为了工作终日奔波，也不受周遭的重视。偏偏迟来的桃花期在51岁的时候降临。同公司23岁的女孩花泽美兰（莲佛美沙子 饰）因工作关系与之熟稔并陷入热恋，大道寺鼓足勇气向对方求婚，如愿得到女孩的答应。此后的一天，阿保踌躇满志登门拜访岳父岳母，结果发现令他震惊的事实。原来美兰的爸爸花泽纪一郎（渡部笃郎 饰）不仅与之同岁，而且是某大型企业内成就非凡的商界精英人士。Public void method () {