A project manager wants to send a small PDF from her NFC-enabled smartphone to a colleague's NFC-equipped laptop simply by tapping the two devices together. Which wireless technology will be used to start the transfer?
Bluetooth
Wi-Fi Direct
NFC
Infrared (IrDA)
Near-Field Communication (NFC) is a very short-range wireless technology that establishes a connection when two NFC-enabled devices are brought within a few centimeters of each other. The action of tapping the devices together initiates the NFC connection. For small files, the transfer can happen directly over NFC. For larger files, NFC is often used to quickly establish a connection and then hand off ('bootstrap') the actual data transfer to a faster technology, such as Bluetooth or Wi-Fi Direct. Bluetooth, Wi-Fi Direct, and Infrared are all methods for wireless file transfer, but none of them are initiated by simply tapping the devices together in this manner.
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