Seemed pretty organized. The "resources"section tells you that they will ask you to build a chat app using TCP clients. I did and practice or reading on it. During the interview, they didn't want you looking at ai responses when you Google. Googling for documentation is allowed. Got the code working that satisfied all requirements. They asked some questions on how would you do this and that after as well. Got rejected soon after. Not really sure where my performance warranted a rejection but oh well.

Recruiter reached out after seeing my application. They already had asked me to install telnet on my system and about building a chat server using sockets. Did a background reading on that. Got the code working during the interview with some guidance from the interviewers. It should handle multiple clients. Got rejected next day. No feedback, nothing. Not sure what the interviewers want these days - a fully working Whatsapp ¯\_(ツ)_/¯ within 1 hr?