ITPEC FE Morning April 2023 Question 73

An electronic billboard that displays images and text — digital signage replaces printed posters with electronic displays.

Digital signage uses displays or projectors in stations, stores, airports and streets to show advertising and information. Because the content is delivered electronically, usually over a network, it can be changed centrally, scheduled by time of day and switched to video, which printed signs cannot do.

Answer (c)

Why not others:

• •(a) — embedding identification information in data to deter misuse is a digital watermark
• •(b) — a gap between regions or individuals in the opportunity and ability to use IT is the digital divide
• •(d) — an electronic signature that confirms the origin and integrity of information is a digital signature

Key rule: Signage means signs: digital signage is electronic display of advertising and information, not to be confused with the digital signature, watermark or divide.

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