212-82: Certified Cybersecurity TechnicianDemo

By ECCouncil · Question Mode

QuestionQ45

Wireless Device Security

Leo walks to the nearest supermarket to buy groceries. At the billing section, the billing executive scans the machine-readable tag on each product using a reader that automatically retrieves product details, displays the price of each item on the computer, and calculates the total for the scanned items. After all products are scanned, Leo must pay the bill.

Identify the short-range wireless communication technology used by the billing executive in this scenario.

  • A Radio-frequency identification (RFID)
  • B Near-field communication (NFC)
  • C QUIC
  • D QR codes and barcodes
Explanation

Checkout systems commonly use optical scanners to read barcodes or QR codes printed on product labels. The encoded identifier lets the point-of-sale system retrieve product details and prices and calculate the total purchase amount.

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