Which feature distinguishes Near Field Communication (NFC) transactions?

The distinguishing feature of Near Field Communication (NFC) transactions is that devices need to be within a short range to communicate effectively. NFC technology enables wireless data transfer between devices when they are typically brought within a few centimeters of each other. This proximity requirement is what sets NFC apart from other wireless communication technologies, such as Wi-Fi or Bluetooth, which can operate over greater distances.

In the context of NFC, this short-range interaction enhances security, as it minimizes the risk of unauthorized access or data interception. The physical closeness required for NFC transactions facilitates applications like mobile payments, allowing users to make transactions simply by tapping their device to a terminal. This unique feature is crucial for understanding how and why NFC is utilized in various consumer technologies today.