What is the primary functional difference between a DVR and an NVR in a surveillance system?
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A
DVRs support IP cameras; NVRs support only analog cameras
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B
DVRs process analog camera signals internally; NVRs record pre-encoded IP camera streams over a network
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C
DVRs provide higher resolution than NVRs
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D
DVRs use cloud storage; NVRs use on-site hard drives