fuzzing

Random input finds shallow bugs. Coverage feedback, sanitizers and a harness that reaches the parser are what make fuzzing find the deep ones. The interview checks all three, plus what happens after the crash.

Each tool sees the application from a different angle and has a blind spot where another looks. The scored answer maps bug classes to tools and builds a pipeline that does not drown developers.

The model's guess is cheap; the proof is what matters. Strong answers describe the oracle that turns a hypothesis into evidence, and the triage that keeps maintainers from drowning.