The short-range two-way communication technology behind contactless payments is called...

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Multiple Choice

The short-range two-way communication technology behind contactless payments is called...

Explanation:
This is about the short-range, two-way wireless technology used for contactless payments. The technology is Near Field Communication (NFC). NFC enables devices to exchange data when held very close together—typically just a few centimeters—allowing a payment terminal and a card or smartphone to securely complete a transaction with a quick, near-field handshake. Other options like Bluetooth Low Energy or Bluetooth are designed for longer-range connections and continuous pairing, while infrared requires line-of-sight and isn’t used for modern contactless payments. NFC’s close proximity, fast setup, and built-in security make it the standard for tap-to-pay systems.

This is about the short-range, two-way wireless technology used for contactless payments. The technology is Near Field Communication (NFC). NFC enables devices to exchange data when held very close together—typically just a few centimeters—allowing a payment terminal and a card or smartphone to securely complete a transaction with a quick, near-field handshake. Other options like Bluetooth Low Energy or Bluetooth are designed for longer-range connections and continuous pairing, while infrared requires line-of-sight and isn’t used for modern contactless payments. NFC’s close proximity, fast setup, and built-in security make it the standard for tap-to-pay systems.

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