Before the interview, find out more about their requirements. If you know you will need to get a background check, get a copy of yours before they run it. You need to know if there are any infractions, major or minor, so that you can share them when they ask you about it. The worst thing that can happen is if you tell them everything is sparkling clean and then something shows up. They want to be able to trust you, and they may be okay if something minor shows up, as long as you can explain it and don't try to hide it. Do as much research as you can to find out their specific requirements and make sure you are able to meet those standards before the interview. Your response to this question should be, "A background check is no problem..." even if you do have something on your record. If you did community service or got something expunged, let them know. Share what you learned from any experiences that may show up on your record.
"A background check is no problem..."
"Of course. I have a clean record, as you can expect from someone pursuing a career in security management."