I understand where you&#x27;re coming from, but the thing is asking :<p>- What is DB indexing<p>- Can you think of any impact when indexing in this situation<p>- What are you general thoughts about indexing, can you think of an example when you used it and how it helped.<p>Will indeed give you insight into how he approaches problems and his maturity. But the difference with this and : tell me how indexing works behind the scenes, is that you focus on what really matters.<p>With that there is no right or wrong answers, there&#x27;s just insightful answers.<p>I do not disagree on the fact that fundamental knowledge is important, but I disagree on the way you assess it. I disagree on the notion that there is an equivalence between fundamental knowledge and formal knowledge. One can be comfortable adding things up without knowing  that it is called an addition.<p>If he does : great, if he doesn&#x27;t it doesn&#x27;t matter as long as he has the insight.<p>More generally the majority of our knowledge is not formal.