In a comprehensive security model, which of the following elements are primary focuses of the physical layer?

Question

Answer

Deployment of video surveillance and motion detection sensors

Answer

Configuration of stateful inspection firewalls and packet filtering

Answer

Management of environmental safeguards such as fire suppression and HVAC monitoring

Answer

Encryption of data at rest using Advanced Encryption Standard (AES)

Answer

Implementation of biometric access control systems for data centers

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