Every body is asked some thing close enough. At higher levels, often focus is not on coding, but enough depth of design where a person of such profile might end up educating the interviewer - while satisfying their requirements.
That being said, ability to solve coding problems efficiently (not necessarily spit A* graph algo in sleep), but a decent close to real life coding challenge is fair game.
That being said, ability to solve coding problems efficiently (not necessarily spit A* graph algo in sleep), but a decent close to real life coding challenge is fair game.