Administrative assistants are typically pretty busy people. A big pile of papers on a table of an assistant is a common picture we see, not only in the films. And obviously, there's "a mess" in their computer too :) …

Interviewers are aware of it and try to find out if you are able to prioritize your tasks, or to work on different tasks simultaneously. Your goal is to convince them about your time management skills, an ability to organize work and recognize the most important tasks to take care of immediately.