Which device reads data from RFID or NFC tags when in range?

Which device reads data from RFID or NFC tags when in range?

• A. Barcode scanner
• B. Magnetic stripe reader
• C. Proximity reader
• D. CCTV camera

Answer: (C)

Proximity reader reads data from RFID and NFC tags using radio waves. When a tag comes within range, the reader powers the tag (if passive) and retrieves its data, which is then sent to the system for actions like granting access or processing a payment. This radio-based interaction works at short distances and does not require line-of-sight, unlike optical methods. This is different from a barcode scanner, which uses light to read printed barcodes; a magnetic stripe reader, which detects data stored magnetically on a stripe; and a CCTV camera, which captures video footage rather than reading tag data.

Proximity reader reads data from RFID and NFC tags using radio waves. When a tag comes within range, the reader powers the tag (if passive) and retrieves its data, which is then sent to the system for actions like granting access or processing a payment. This radio-based interaction works at short distances and does not require line-of-sight, unlike optical methods.

This is different from a barcode scanner, which uses light to read printed barcodes; a magnetic stripe reader, which detects data stored magnetically on a stripe; and a CCTV camera, which captures video footage rather than reading tag data.