At UPS we prefer to hire those with shipping industry knowledge. Can you tell me what Advanced Shipping Notice (ASN) is?

The interviewer is looking for evidence that you have some basic knowledge of the logistics and shipping industry. How you answer this question will indicate to the interviewer the level of experience that you have with shipping lingo.

Even if you have not worked in the logistics industry before, you should have conducted some industry-related research before your interview. Remember, the interviewer is not necessarily looking for a full understanding of systems and processes (depending on the level of role you are interviewing for) - they may merely be looking for an indication of genuine interest in what they do at UPS.