Video Management Software Flashcards

What is 'edge storage' in the context of a VMS deployment?

Answer: Recording video locally on the camera's SD card or NAS when network connectivity to the server is lost

Edge storage allows IP cameras to record directly to an onboard SD card or local NAS device, ensuring recording continuity during network outages until connectivity to the VMS is restored.

Which VMS feature helps investigators find a specific person or vehicle across multiple cameras by searching for similar visual attributes?

Answer: Forensic video search or appearance search

Forensic video search (also called appearance search) uses video analytics to search recorded footage for objects matching specified visual characteristics like clothing color or vehicle type across all cameras.

In VMS access control integration, what action can be configured to occur automatically when an access control panel reports a forced door event?

Answer: The VMS triggers an alarm and displays live video from associated door cameras

Integration between VMS and access control allows forced-door events to automatically trigger VMS alarms and pop up live video from cameras associated with that door on operator monitors.

What does a 'watermark' embedded in exported VMS video files prove?

Answer: The video has not been tampered with since it was exported from the system

A digital watermark embedded in exported video provides a mechanism to verify the file's integrity, confirming it has not been altered since it was exported from the VMS.

A VMS administrator wants to prevent operators from exporting video without supervisory approval. Which permission setting achieves this?

Answer: Removing the export privilege from the operator role and granting it only to supervisor roles

Role-based access control allows administrators to remove the export permission from standard operator roles, requiring supervisor-level credentials to export any recorded footage.

What is the function of 'multicast streaming' in a large VMS deployment?

Answer: It allows one camera stream to be delivered simultaneously to multiple viewing clients without multiplying server bandwidth usage

Multicast streaming sends a single video stream from the source to a multicast group address, allowing many viewing clients to receive the same stream without the server generating a separate unicast stream for each client.

Which of the following best describes 'video content analysis' (VCA) as implemented in a VMS?

Answer: Automated algorithms that analyze video streams to detect defined events like loitering, perimeter breach, or object removal

VCA uses automated software algorithms to continuously analyze video streams and generate alerts when defined behavioral or object-based events are detected, reducing the burden on human operators.