Very thorough interview. They will ask/inquire about your technical background. They are very sharp so if you say you have worked on something be prepared to give details. They will bring you in and you will meet with the NOC Director and the Field Service director. They both will tell you what their department does and will proceed to ask you technical questions and give scenario's and ask how you go about resolving certain issues. If you don't know something be honest with them, they are trying to gauge where you can fit in.