A large department store is deploying a new method of payment that allows a shopper to make a payment by placing a smartphone on a sensing device. Which service must be enabled on smartphones to support this technology?

A large department store is deploying a new method of payment that allows a shopper to make a payment by placing a smartphone on a sensing device. Which service must be enabled on smartphones to support this technology?

• IR
• NFC
• Wi-Fi
• Bluetooth
  

  Explanation: Near Field Communication (NFC) enables mobile devices to establish radio communications with other devices by placing the devices close together or by touching them together.