What are two common types of physical security measures?

Surveillance systems and security personnel are indeed foundational components of physical security measures. Surveillance systems, such as cameras and monitoring equipment, play a critical role in deterring crime, monitoring activities, and gathering evidence in the event of incidents. They provide real-time information that can be crucial for security responses.

On the other hand, security personnel are essential for active monitoring and intervention. Trained guards can respond to alarms, patrol premises, and interact with individuals to enforce security protocols. Their presence alone can deter potential threats, and their ability to assess situations allows them to react appropriately to security breaches or emergencies.

Both surveillance systems and security personnel complement each other, forming a robust physical security strategy that not only protects physical assets but also enhances the overall safety of personnel and visitors within a facility. Other options mention important elements, but they either fall into the realm of cybersecurity (like data encryption and audit logs) or do not directly address the core aspect of physical security as effectively as the combination of surveillance systems and security personnel.