Question
Which of the following is used to detect and record access to restricted areas?
- A. Bollards
- B. Video surveillance Correct
- C. Badge readers
- D. Fence
Explanation
Video surveillance (CCTV) both detects who enters a restricted area and keeps a recording that can be reviewed later as evidence. Badge readers control entry and log badge use, but they record only that a badge was presented, not who actually walked in or whether someone tailgated. Bollards and fences are physical barriers that deter or block access; they neither detect nor record it.
