The problem is when the interview has absolutely nothing to do with the day to day work the hired employee is expected to do.<p>So someone who wants to be hired has to spend a lot of time and effort learning stuff that are only marginally useful - knowledge isn&#x27;t bad per se, but it might be a bad allocation of resources.<p>I&#x27;m not saying that it is so in Google&#x27;s case, only that I&#x27;ve seen and participated in interviews where questions had no relevance to the job description.