* Physical security is the protection of the physical assets and resources of an organization from unauthorized access, damage, or theft1.
* Physical security detection devices are devices that can monitor and alert on the presence or activity of intruders, unauthorized personnel, or environmental hazards in a physical location12.
* Cameras are examples of physical security detection devices, as they can capture and record video footage of the surroundings, and send alerts or notifications to the security personnel or the network administrator12.
* Cameras can also act as a deterrent for potential intruders, as they can make them aware that they are being watched and recorded2.
* The other options are not considered physical security detection devices, as they have different functions or purposes, such as:
* Biometric readers are devices that can authenticate the identity of a person based on their unique biological characteristics, such as fingerprints, iris scans, or facial recognition12. Biometric readers are examples of physical security prevention devices, as they can prevent unauthorized access to a physical location or a device2.
* Access control vestibules are structures that can control the entry and exit of people or vehicles to a physical location, such as a building, a room, or a parking lot13. Access control vestibules are examples of physical security containment devices, as they can contain or isolate a physical
* location or a device3.
* Locking racks are devices that can secure the physical components of a network device, such as a server, a router, or a switch, inside a metal enclosure or a cabinet1 . Locking racks are examples of physical security protection devices, as they can protect a physical device from damage, theft, or tampering. References:
* 1: CompTIA Network+ N10-008 Cert Guide, 1st Edition, Chapter 14: Network Security, pp. 566-569
* 2: CompTIA Network+ N10-008 Cert Guide, 1st Edition, Chapter 14: Network Security, p. 570
* 3: Access Control Vestibule - Wikipedia
* : CompTIA Network+ N10-008 Cert Guide, 1st Edition, Chapter 2: Network Devices, p. 67