An international IT corporation is setting up an R&D center in China, and the chair faculty is hiring network researchers. They decided they wanted to try a fun interview puzzle classic:420Please respect copyright.ＰＥＮＡＮＡFlLuvu1FNB
"Describe what will happen after you type in google.com and enter in your browser with as much detail as possible."420Please respect copyright.ＰＥＮＡＮＡKyH0MQBD6G
Half an hour has passed, and the applicant is still lecturing enthusiastically about the protocol specifications of Shadowsocks, Trojan, and VMess, the encryption, emulation, and obfuscation standards for the network traffic, the automated packet analysis set up by the ISP and the communist party, and it seemed the step where the browser receives a DNS name record is still an hour away.420Please respect copyright.ＰＥＮＡＮＡJSFYfCpXeN
...420Please respect copyright.ＰＥＮＡＮＡVAf9HrDvz8
Several hours of intensive lecturing later, the applicant says:420Please respect copyright.ＰＥＮＡＮＡeqd9oUX9hr
"And finally, you receive an RST flag, and then the agents with the Bureau for the Protection of National Political Security knock on your door."420Please respect copyright.ＰＥＮＡＮＡT9fFyJpfCA
And the applicant sat down and paused.420Please respect copyright.ＰＥＮＡＮＡrinzgUisd6
Knock, knock.420Please respect copyright.ＰＥＮＡＮＡR5zRiun4ol
The chair faculty was confused as they've already sent everybody in the office home just to listen to this applicant's wonderful lecture until the end.420Please respect copyright.ＰＥＮＡＮＡ2Q8h1OKqit
and then Add to home screen.