A camera is what type of control method?

A camera is classified as a physical control method because it involves the use of tangible equipment to monitor and protect physical environments. Physical controls are implemented to prevent unauthorized access to facilities or assets, and they include measures such as locks, security guards, and surveillance cameras.

Surveillance cameras serve to deter potential intruders, record activities for later review, and assist in maintaining a secure physical environment. This approach complements other security measures but focuses specifically on the physical aspect of security—deterring and documenting changes in a secure area.

In contrast, technical controls involve software and hardware mechanisms to protect electronic data—like encryption or firewalls. Administrative controls focus on policies, procedures, and regulations that govern security practices. The term "limit" does not pertain to a recognized category of control method in this context. Hence, recognizing a camera as a physical control aligns with its primary role in enhancing security through observance and monitoring within a physical space.