1. Modern C++11, 14,17, 20 features. They asked what i know from C++23/26 as well. I said that i don't remember. 2. Mostly, we can expect what they can ask from C++. Be clear about C++ concepts. For example: All types of constructors, explicit usage, auto, decltype, threads, async programming. STL, search and sorting and time complexity. 3. Prepare few well-known coding logics. 4. They did not focus on how a process handles concurrent connections using select, pselect, poll or epoll. Their main focus was how deep you know the modern C++ and are you able to think and implement some logic.
