I had three telephonic rounds and one in-person interview. The interviews were conducted in a professional manner. They asked a mix of technical and analytical questions. The analytical questions were typical puzzles asked in such interviews. They focused a lot on the reason for leaving the previous company and seemed to really make sure that you are not switching just for the salary.

When is it appropriate to use a local interface in EJBs?

You have two light bulbs. You are in a multistory building such that if you drop a bulb from a floor of a certain height or higher, the bulb will break. For example, if the bulb will break at a minimum height of the 10th floor, then the bulb will break if dropped only if dropped from a floor higher than the tenth floor. It will not break if dropped from the ninth floor or less.

Using the two bulbs, how will you figure out at which floor the bulb will break?