My interview opens with a discussion on technical decisions. Instead of just "What is a class?", the interviewer asks: "Why choose C++ over a managed language like Java or Python for your last project?"I focus my answer on predictable performance and fine-grained memory control. I explain that for our low-latency data processor, the overhead of a Garbage Collector (GC) was unacceptable. This leads naturally into a discussion on RAII (Resource Acquisition Is Initialization). I explain that by tying resource lifespan to object lifetime, C++ allows for deterministic cleanup without the need for manual free() calls or a GC.