A company issues smartphones to field sales staff who frequently travel between cities. Which connection method allows these devices to keep Internet and voice connectivity as they move, automatically handing communications from one base station to the next over large geographic areas?
Cellular networks use geographically distributed base stations (cells) and seamless handovers so a mobile device can maintain voice and data sessions while moving. Bluetooth, NFC, and Wi-Fi Direct are short-range technologies that do not provide wide-area, tower-to-tower mobility.
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