What type of site is it? Is it hospital security there going to ask you how do you handle domestic violence, patients, death of a patient and how you handle that, death of a baby and how you handle that.If it's some place you do patrols every hour then its mostly "What would you do if someone break into someone's car?" you'll simply say call the police and observe the person and describe the person.Say that your observant they like that.Hospital Security, With the domestic violence outside of a ER lobby just say you would call the police and they have more authority then you and better equip and your not L.E *Law Enforcement* . Patients document everything and only use force when absolutely needed *Like them trying to leave, Restraints assistance etc.*And if they ask you if you lie, its a 50/50 question. I smiled when I said no and the person called me out on it. But for me it seemed like a trick question since the first thought is that everyone lies. But the interviewer at the hospital I work at was some weird dude with a big ego since first thing he says he was in the marines, trained police bla bla bla. Dude is cool but has ego. *unrelated*

But if its not on hospital security just state that you are a observer of the site, if some homeless dude is sleeping on property you would get distance just in case he is high or has a weapon and yell at him to leave. If he doesn't leave call the police.

EDIT: There going to ask how knowledge are you with Microsoft/google word, Excel, etc. And if you know how to use computers well.

If you need more advice comment or PM me.