Acceptance With Grace. The best_case scenario__and honestly, the most common reaction__is that your boss will accept your resignation with understanding and sincere congratulations. Your manager will be happy to see that you're advancing your career and moving on to something bigger and better.
However, if you know the right signs to look for, there's a good chance you can figure out what kind of reaction to expect__and that can make the conversation go much more smoothly. Here are a few common reactions and how to anticipate which one you'll receive.