I've used that app for 20+ years. And cursed the moving around apps all that time. Turns out there is a single keyboard click trick to avoid it (press CTRL, that is). I feel a bit stupid now.
Perhaps what you meant was solely by the engine RPM.
But you should've probably discovered View -> Update Speed :)
Edit: another example would be something like judging someone on if they remember the option name in an API call for a specific library. Trivial to google. Whiteboard interviews for stuff like this are asinine.