CST CST Storage & Retention Management

Question 1

What does DVR stand for in a surveillance system?

Accepted Answer

Digital Video Recorder

Answer

Direct Video Router

Answer

Data Verification Router

Answer

Dual Video Relay

Question 2

What is the primary advantage of an NVR over a DVR for modern surveillance installations?

Accepted Answer

NVRs process video data from IP cameras directly over the network

Answer

NVRs are less expensive than DVRs

Answer

NVRs only support analog cameras

Answer

NVRs do not require hard drives

Question 3

Which factor has the GREATEST impact on the storage capacity required for a surveillance system?

Accepted Answer

The resolution, frame rate, and compression codec used

Answer

The color of the camera housing

Answer

The length of the camera cable

Answer

The type of camera mount

Question 4

What is the purpose of motion-triggered recording in a surveillance storage strategy?

Accepted Answer

To reduce storage usage by only recording when activity is detected

Answer

To improve camera image quality during motion events

Answer

To automatically alert police when motion is detected

Answer

To enable pan-tilt-zoom on fixed cameras

Question 5

In surveillance storage planning, what does 'retention period' refer to?

Accepted Answer

The length of time recorded footage is kept before being overwritten or deleted

Answer

The time it takes to retrieve a video clip

Answer

The duration of a single camera's recording session

Answer

The warranty period for the DVR/NVR

Question 6

A surveillance system is configured for continuous recording at 1080p/15fps. What is the BEST approach to extend the retention period without adding storage hardware?

Accepted Answer

Switch to a more efficient codec such as H.265

Answer

Increase the frame rate to 30fps

Answer

Disable all cameras during daytime hours

Answer

Use JPEG instead of video compression