A technician must recommend a wireless method that lets a user quickly send a small PDF from an Android smartphone to a coworker's NFC-enabled Windows 11 laptop simply by placing the two devices back-to-back. Which connection technology should the technician choose?
Infrared (IrDA)
Bluetooth
Wi-Fi Direct
Near-Field Communication (NFC)
NFC (Near-Field Communication) supports peer-to-peer mode, allowing two nearby devices (typically within 4 cm) to establish a connection and exchange small data objects such as documents, URLs, or contact cards. When both the smartphone and the laptop have NFC hardware enabled, the user can initiate the transfer by touching the devices together. Bluetooth and Wi-Fi Direct can also transfer files wirelessly but require additional discovery or pairing steps rather than a simple tap, while Infrared is largely obsolete on modern smartphones and laptops.
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