CSI Physical Security Surveys 3 — Questions and Answers
Question 1: What is the purpose of a 'standoff distance' in physical security planning?
- To create buffer space between competing security companies
- To establish a minimum distance between a potential explosive device and a protected structure (Correct answer)
- To define the range of a security camera
- To set patrol boundaries for security officers
Correct answer: To establish a minimum distance between a potential explosive device and a protected structure
Standoff distance is a planned buffer that reduces blast effects on a structure by keeping potential explosive threats farther away.
Question 2: In a physical security survey, 'layers of protection' refers to:
- Multiple coats of security paint on doors
- A defense-in-depth strategy using multiple barriers and controls (Correct answer)
- Redundant alarm system wiring
- Stacked filing systems for security documentation
Correct answer: A defense-in-depth strategy using multiple barriers and controls
Defense-in-depth layers multiple physical and procedural controls so that defeating one layer does not compromise the entire security system.
Question 3: Which of the following is the BEST indicator of a well-maintained physical security program during a survey?
- Presence of expensive security equipment
- Current, tested procedures with documented maintenance records (Correct answer)
- Large number of security personnel on duty
- Multiple warning signs posted around the facility
Correct answer: Current, tested procedures with documented maintenance records
Documented, tested procedures and maintenance records demonstrate that the security program is actively managed and operationally effective.
Question 4: A mantrap (access control vestibule) is designed primarily to:
- Provide a safe waiting area during emergencies
- Prevent tailgating and control access one person at a time (Correct answer)
- House security monitoring equipment
- Create a holding area for detained individuals
Correct answer: Prevent tailgating and control access one person at a time
A mantrap uses interlocked doors to ensure only one person passes through at a time, directly preventing tailgating into secured areas.
Question 5: During a survey, a surveyor should assess 'target hardening' measures. Target hardening BEST describes:
- Training security staff to be more assertive
- Physical modifications that make a target more difficult or less attractive to attack (Correct answer)
- Installing harder flooring materials in high-traffic areas
- Increasing insurance coverage for assets
Correct answer: Physical modifications that make a target more difficult or less attractive to attack
Target hardening involves physical modifications—locks, barriers, reinforcement—that increase the difficulty and risk for a potential attacker.
Question 6: Which intrusion detection sensor is MOST appropriate for detecting motion in a large open warehouse space?
- Magnetic door contact sensor
- Passive infrared (PIR) motion detector (Correct answer)
- Glass break sensor
- Vibration sensor
Correct answer: Passive infrared (PIR) motion detector
Passive infrared detectors sense body heat movement across wide open areas, making them ideal for large interior spaces like warehouses.
Question 7: When evaluating a facility's key control program during a survey, which finding represents the MOST serious vulnerability?
- Keys are labeled with room numbers for convenience (Correct answer)
- Master keys are issued to all supervisors
- Key inventory is conducted annually
- Some keys are over 10 years old
Correct answer: Keys are labeled with room numbers for convenience
Labeling keys with room numbers enables a lost or stolen key to be used immediately against the targeted lock, creating a critical vulnerability.
CSI Physical Security Surveys 3
What is the purpose of a 'standoff distance' in physical security planning?