Which mobile feature is used for content access via codes?

Which mobile feature is used for content access via codes?

• A. Messages
• B. Apps
• C. NFC
• D. QR codes

Answer: (D)

QR codes let you access content by encoding a link or data in a square pattern that your phone can read with its camera. When you scan the code, the device decodes the embedded information and automatically opens the linked content, like a webpage, app download, or digital resource. This makes QR codes the straightforward method for content access via codes. Messages aren’t about decoding links to reach content; they’re for sending and receiving text or media. Apps are software you run, not the mechanism that provides code-based access. NFC is a nearby-field technology that starts actions by tapping another device or tag, not by scanning a code, so it serves a different interaction.

QR codes let you access content by encoding a link or data in a square pattern that your phone can read with its camera. When you scan the code, the device decodes the embedded information and automatically opens the linked content, like a webpage, app download, or digital resource. This makes QR codes the straightforward method for content access via codes.

Messages aren’t about decoding links to reach content; they’re for sending and receiving text or media. Apps are software you run, not the mechanism that provides code-based access. NFC is a nearby-field technology that starts actions by tapping another device or tag, not by scanning a code, so it serves a different interaction.