What is DVR and how is it typically delivered in a cable system?

What is DVR and how is it typically delivered in a cable system?

• A. Digital Video Router; streams content to set-top boxes
• B. Digital Video Recorder; stores and plays back content, integrated in STB or cloud
• C. Data Video Recorder; stores and forwards video streams to DVR
• D. Dynamic Video Relay; provides on-demand content

Answer: (B)

DVR stands for Digital Video Recorder. The idea is to store television programs so you can watch them later, giving you time-shifted viewing and easy playback. In a cable system, this capability is usually delivered in two ways: either the set-top box itself includes a hard drive or memory to record and play back shows, or the provider uses cloud DVR, where your recordings are stored on remote servers and accessed through the STB or companion apps. This setup lets you schedule recordings, pause or rewind live TV, and watch on different devices. The other terms don’t fit because they don’t describe a storage-and-playback function that’s tied to TV content: a digital video router would imply routing streams, a data video recorder isn’t the standard term, and dynamic video relay isn’t a real concept in this context.

DVR stands for Digital Video Recorder. The idea is to store television programs so you can watch them later, giving you time-shifted viewing and easy playback. In a cable system, this capability is usually delivered in two ways: either the set-top box itself includes a hard drive or memory to record and play back shows, or the provider uses cloud DVR, where your recordings are stored on remote servers and accessed through the STB or companion apps. This setup lets you schedule recordings, pause or rewind live TV, and watch on different devices. The other terms don’t fit because they don’t describe a storage-and-playback function that’s tied to TV content: a digital video router would imply routing streams, a data video recorder isn’t the standard term, and dynamic video relay isn’t a real concept in this context.