The close as "general reference" selection has been rolled out on a very limited basis on a few sites which have clearly shown it to be a problem.
Closed as general reference
This question is too basic; it can be definitively and permanently answered by a single link to a standard internet reference source designed specifically to find that type of information.
Even on those sites, it is rarely needed past the initial, early days of the site.
For the most part, closing it as "not a real question" should suffice. Add a clear comment explaining your objection to the question. Feel free to use the reference description above.
You do want to be careful with overly-basic and easy questions too early in your beta period. See this blog post: Asking the First Questions
But be careful. A bit down the road, the reference close reason is not meant to rid yourself of questions which can (even easily) be found in a Google search. Easy questions are okay. We just don't want to waste everyone's time with overly-referential questions like "What is the definition of …" or something more apt, like "What is Quality Assurance?"