Renaissance Technologies LLC Research Infrastructure Programmer interview questions

The tech leader called me a screening interview. He introduced their company, this job position, and the recruiting process. He then invited me to ask any questions. After that, he began to ask technical questions which are heavily related to Linux and C++. However, the questions he asked are far beyond the main stream. He asked about the Linux version, kernel version, gcc version. And then he asked the prototype of std::move function. Wow, he expected me to answer: template< class T > typename std::remove_reference<T>::type&& move( T&& t ) noexcept; What? It's not the type of technical interview I imaged! After another few such questions, I just cannot tolerate any more: "Can you ask some questions that wouldn't be easily looked up online or in manuals ?" He paused for a few seconds, and said "Sorry, you are not qualified for this position". They said they want C++ expert for this position. OK, I got what their "expert" means.