这个问题是可以预料到的，所以不难回答。但要回答出色，一定要是别人不能重复的，就是老美常说的 Differnce。
俺以前也琢磨用一些圆滑回答，不留破绽，但效果并不好，不能给人深刻印象。后来索性不管对方问不问自己都说，“I have IBM certificate, Oracle certificate and Microsoft certificate. My problem is that My knowledge base is wide enough but not deep enough. I can not focus on one area. And I realized that and want to concentrate on Microsoft". 俺申请的是Microsoft Job。
