CSS Physical Security & Access Control Flashcards

Which key control principle requires that the number of keys issued be tracked and limited to those who have a need?

Answer: Least privilege access

The principle of least privilege ensures keys and access rights are granted only to those with a legitimate operational need.

A security supervisor notices a door that should remain secured is propped open repeatedly. The best corrective action is to:

Answer: Investigate why the door is being propped, address the root cause, and reinforce the policy with officers and staff

Repeated door propping indicates a systemic behavioral issue that requires root cause investigation and policy reinforcement.

What is a 'security vulnerability' in the context of physical security?

Answer: A weakness in physical security measures that could be exploited by a threat

A vulnerability is any physical weakness — in barriers, lighting, access control, or procedures — that a threat actor could exploit.

When assessing perimeter security, which factor should a CSS supervisor evaluate to determine if fencing is adequate?

Answer: The height, material, condition, and presence of top deterrents such as barbed wire or anti-climb measures

Effective perimeter fencing is evaluated on height, material strength, physical condition, and top deterrents that prevent climbing.

A two-factor authentication access control system requires users to present:

Answer: Something they have (like a card) and something they know (like a PIN) or something they are (biometric)

Two-factor authentication combines two different verification categories — possession, knowledge, or biometrics — to strengthen access control.

Which of the following best describes the role of security lighting in a comprehensive physical security plan?

Answer: A deterrent and detection tool that reduces concealment opportunities for intruders

Security lighting deters intrusion by eliminating dark concealment areas and supports officer patrol effectiveness and camera coverage.