APT Research Software Engineer interview questions

interview process spanned for 5 rounds 1. Online Assessment - 5 Questions(2 coding with documentation+ 3 theory questions) 2. Online Round 1 - Coding round Focusing more on the smart pointers 3. Online Round 2 - Project discussion and mostly around the OS topics like atomics, cache coherence, process synchronisation 4. Online Round 3 - OS concepts more focused on thread local space and process local space and accessing of address spaces 5. HR Round - General Discussion about the role and my residence place, motivation to join