There is a great deal of technology available to make our lives safer, and the interviewer would like to know how familiar you are with the choices available. If you are newer to your career, you may not be aware of more than just the basics. If this is the case, focus your answer on what you do know and be sure to express that you are willing to learn.
If you are seasoned in the security services industry, you could talk about how you have seen technology shift and improve over the years. Mention the type of security equipment and technology in which you bring experience.
