Which of the following is an example of a physical security control?

The choice of security cameras and access cards exemplifies a physical security control because these measures are designed to protect the physical premises of a facility. Physical security controls focus on preventing unauthorized access to buildings and sensitive areas within them. Security cameras serve to monitor and record activity, deterring potential intruders and providing evidence in the event of a security breach. Access cards regulate who can enter specific areas, ensuring that only authorized personnel gain access to sensitive locations.

In contrast, the other options pertain to logical or technical controls that protect data and systems rather than physical spaces. Encryption software protects data integrity and confidentiality in digital formats, while firewalls and intrusion detection systems monitor and defend against cyber threats. Antivirus software is designed to detect and mitigate malware on devices. All these options focus on cybersecurity rather than physical security. Therefore, the emphasis of security cameras and access cards on controlling access and monitoring physical environments aligns perfectly with the concept of physical security controls.