Most companies in the aerospace and defense industry need to be very cautious about who they hire, and this will include Airbus. In addition to non-competes and a confidentiality agreement, a background check will be run as well. There is a chance that much of the information you are going to access could be confidential and dangerous if put into the wrong hands. Assure the interviewer that you are most willing to comply with any form of background check they require.