For me, if a candidate doesn't know the solution right away, but can (in some reasonable time) come up with a solution on her own after some googling, it's a hu

For me, if a candidate doesn't know the solution right away, but can (in some reasonable time) come up with a solution on her own after some googling, it's a huge plus. Ability to improvise and apply known solutions to a completely new problem is a sign of a great engineer.