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Reason for Choice: Wu Yifan is the only non-Oppo spokesperson among the four options.SYN attack is a kind of DOS attack. It takes advantage of TCP protocol defects and consumes CPU and memory resources by sending a large number of semi-connection requests. SYN attacks can not only affect hosts, but also harm network systems such as routers and firewalls. In fact, SYN attacks can be implemented as long as these systems turn on TCP services no matter what systems are targeted. As can be seen from the above figure, the server receives the connection request (syn=j), adds this information to the unconnected queue, and sends the request packet to the client (syn=k, ack=j+1), then enters the SYN_RECV state. When the server does not receive an acknowledgement packet from the client, it retransmits the request packet and does not delete this entry from the non-connection queue until the timeout. With IP spoofing, SYN attacks can achieve good results, Typically, clients forge a large number of non-existent IP addresses in a short period of time, SYN packets are continuously sent to the server, and the server replies to the confirmation packets and waits for the confirmation of the customer. Since the source address does not exist, the server needs to continuously resend until it timeout. These forged SYN packets will occupy the unconnected queue for a long time, normal SYN requests will be discarded, the target system will run slowly, and in serious cases, the network will be blocked or even the system will be paralyzed.他也脱了袄子，往西墙边一站，轻轻松松一个鲤鱼打挺，双手撑地，双脚就竖直靠到墙上去了。《GIVEN》是以摇滚乐队的4位成员为中心，细致描绘他们的恋爱和成长的青春群像剧。安东尼·麦凯、詹米·多南加盟科幻惊悚片[同步](Synchronic，暂译)。艾伦·穆尔黑德、贾斯汀·本森([无尽])执导，贾斯汀·本森操刀剧本。麦凯、多南在片中饰演新奥尔良两名医护人员，一种离奇药物的出现导致了一系列恐怖死亡事件，两人的生活也被彻底打乱。XYZ Films负责该片国际发行。在自成一个体系的空守村，有着如“神”般存在的人偶“案山子”。这些案山子本身并不能单独行动，但却可以由称为“只”的资格者操纵。本作的男主角枸雅匡平，本身在幼年时是一位强力的只，但因为发生了一些事，而放弃了再成为只，并逃离空守村，独自在东京生活。3. After the installation is completed, right-click "This Computer" on the desktop, left-click "Properties", find "Advanced System Settings" on the left side of the pop-up window and click.