now, I should also say that if your company builds libraries that actually implement these algorithms in a better, stronger, faster way, then of course by all m

now, I should also say that if your company builds libraries that actually implement these algorithms in a better, stronger, faster way, then of course by all means ask away. And, I also get that understanding what I linked list, hash map, trie, graph, etc.. is an important signal for interviewers that you've got some computer 'science' background. However, more relevant question might be why they might be used.. or the algorithmic complexity of one over the other (since in practice we're just going to use a collection library anyway). I might argue that another (equally irrelevant) signal that you've studied computer science would be ask what the integral of 1/x is.