ITPEC IP October 2023 Question 37
Which of the following is an explanation of DRM (Digital Rights Management), which is used for digital content?
Explanation
Technologies that protect copyright and restrict use and duplication — that is DRM, digital rights management.
Digital content can be copied without any loss of quality, so rights holders protect it technically. DRM encrypts the content and lets it be played only with a licence (key) on authorised players or devices, and it can limit copying, the number of devices, the viewing period or printing. Music and video services and e-books use it.
Answer (b)
Why not others:
- •(a) — describes audio and video compression, such as the MPEG standards, which come in several variants by quality
- •(c) — describes BML (Broadcast Markup Language), the XML-based language for data broadcasting on digital television
- •(d) — describes a surround-sound standard, such as 5.1-channel audio
Key rule: DRM controls who may use digital content and how; compression and sound standards decide how the content is stored or reproduced.
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