Yes and that's true of ACLs as well which I think underscores my point: Questions should be an opener to dialogue. A topic, not a conclusion.
Discussion of these whys and hows and whens is the most valuable part of an interview and will more accurately illustrate depth and breadth than any number of fixed questions.
Except on some filesystems really small files can actually be stored directly within the inode, so even that's not always true.