Correct AnswerA. Storing video footage from IP cameras
Quick Explanation
An NVR receives digital video streams from IP/network cameras and records, stores and manages that footage. Its central function is therefore storage/recording of IP-camera video, which is option A.
Detailed Explanation
Correct Answer
A — Storing video footage from IP cameras
Concept and Reasoning
An NVR receives digital video streams from IP/network cameras and records, stores and manages that footage. Its central function is therefore storage/recording of IP-camera video, which is option A.
Calculation / Key Relation
IP cameras → network → NVR storage/management
Exam Takeaway
NVR = Network Video Recorder.
Common Mistake
Do not confuse an NVR with an analog-video conversion device or a network router.
