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:273Please respect copyright.PENANATi1NaONZl5
"Describe what will happen after you type in google.com and enter in your browser with as much detail as possible."273Please respect copyright.PENANAZprCC6C8kP
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.273Please respect copyright.PENANARxHyFkIRMt
...273Please respect copyright.PENANA9AM5WnRbZA
Several hours of intensive lecturing later, the applicant says:273Please respect copyright.PENANAZGESxOMAG1
"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."273Please respect copyright.PENANA42FbH2UVFK
And the applicant sat down and paused.273Please respect copyright.PENANAZWvuOaDyu3
Knock, knock.273Please respect copyright.PENANAcZVq1LVhsA
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.273Please respect copyright.PENANAwSj7qvDkgf