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Take Huawei mate10pro as an exampleThe first step to prevent DDOS is to have a backup website or at least a temporary home page. In case the production server goes offline, it can immediately switch to the backup website, so there is no way out.Germany is the hometown of T-Mobile. As the largest mobile phone operator, it has 2.67 million users (March 2004), closely following rival Vodafone. In order to upgrade Germany's highly profitable GSM network to UMTS third generation mobile communication standard and meet the demand of mobile phone Internet access, Deutsche Telekom obtained the authorization to use 3G in Germany in August 2000, and T-Mobile spent 16 billion German marks (7.6 billion US dollars). T-Mobile USA was formerly VoiceStream (which has acquired wireless operators PowerTel, Aerial and Omnipoint). VoiceStream was acquired by Deutsche Telekom in May 2001 for billion. Headquartered in Bellevue, Washington, T-Mobile USA is the third largest operator in the U.S. Market and the second fastest growing company after Verizon Wireless with more than 1.6 million subscribers, with an average quarterly growth of 1 million subscribers. It is also the only mobile phone company that uses a unified brand in Europe and the United States. Connected to Deutsche Telekom through an international roaming agreement and compatible with other GSM networks, T-Mobile USA provides more coverage worldwide than any other U.S. Wireless operator. In 2004, T-Mo周菡听着听着，忽然回过味来，脸就红了，夺手出来，小声道：该回去了。[Do you like the mother who has the base of the main gun +1 and the auxiliary gun that can also add vulnerable injuries to the enemy?]Qu Goblin: He will learn and keep reading habits at critical moments (although it is related to purchase, it is also the absorption of popular trend information);