Comment Interviewer is not as smart as he thinks he is. (Score 1) 809
I asked another applicant a similar question: "Suppose you wanted to send me a file with very sensitive information, how would you encrypt it in such a way that I would decrypt it?" The person started off by asking me if it was an excel file, a PDF, etc.
What's wrong with asking that? Both Excel and Acrobat have built-in encryption capabilities. There's nothing ignorant about considering whether the built-in functionality is sufficient.