> Saying "I don't know" like this in an interview scenario is nearly impossible for most candidates and only serves to humiliate rather than prove their abiliti

> Saying "I don't know" like this in an interview scenario is nearly impossible for most candidates and only serves to humiliate rather than prove their abilities. I don't think this is true only in interviews though. I have worked with people who can't seem to admit they don't know something and they're difficult to work with. It's completely fine if you can't do something. What's not fine is that you fail to communicate it to those around you and create false expectations. That being the case, I think it's fair to score a candidate negatively if they aren't able to say they don't know something.