What I get from reading that post is that some interviewers are just looking for trouble. If you're going to ask probing questions, you have to probe correctly

What I get from reading that post is that some interviewers are just looking for trouble. If you're going to ask probing questions, you have to probe correctly. Rsync is the correct answer, and mysqldump is the correct answer, for the problems as given. If you want those not to be the correct answer because you're fishing for something else, you have to be specific as to why not: "But suppose the patient has lupus, and that treatment will kill her, what would you do THEN?" These are interviewers that are blowing the setup for their joke and then expecting you to laugh at the punchline. If you're going to be a "smarter-than-thou" interviewer, you have to at least set your questions up properly so that "rsync" and "mysqldump" are not, in fact, the correct answers.