An anecdote, for sure, but a friend of mine just failed a Google interview for not knowing 'Dalvik' was the name of the Android VM, despite knowing it was stack-based and used, among other things, to avoid licensing fees. The non-technical interviewer saw that his answer to the trivia question was wrong, and that concluded the interview.

It's possible that trivia question was the straw that broke the camel's back, but since she wasn't sure whether or not his additional information was correct and/or sufficient, he 'lost out'.