Not the same thing, the point is that you have had enough exposure to different things that you can solve problems. The reason software company asks those ques

Not the same thing, the point is that you have had enough exposure to different things that you can solve problems. The reason software company asks those questions is that if you are familiar with your data structures (lists, stack, queues, trees) your algorithms (sorting, searching) you can pretty much give a reasonable answer to most of those questions.