How does CCTV monitor video footage?

CCTV systems monitor video footage primarily through continuous real-time viewing or playback of recorded footage. This capability is essential for surveillance purposes, allowing operators to actively watch live feeds from cameras or review previously recorded material. This dual function of live monitoring and playback ensures that security personnel can respond to incidents as they occur while also having the ability to analyze past events for investigation or review.

The continuous nature of surveillance provided by this method is crucial in a variety of environments, such as retail, corporate, and public spaces, where immediate response may be necessary to prevent or address security breaches. It also supports event documentation and helps in creating a comprehensive account of activities within the monitored area.

Additionally, other options, while they can relate to a CCTV system's functionality, do not describe the fundamental way in which video footage is monitored. Integration with access control systems enhances security but does not directly involve video monitoring itself. Motion-activated recording focuses on when to record rather than how footage is monitored. Storing video exclusively on physical media limits the flexibility and accessibility of footage compared to digital recordings, which can be easily accessed and reviewed.