It’s the difference between being asked “how would you design a Twitter clone?” and “How did you design [current employer’ssystem]?” The first is generic (unle

It’s the difference between being asked “how would you design a Twitter clone?” and “How did you design [current employer’ssystem]?” The first is generic (unless you happen to be a current Twitter employee). No NDA impact. The second is asking you to reveal details of a proprietary system covered by NDA (or if you’re a Fed contractor, covered by various classification laws).