PHYSICAL LAYER AND TRANSMISSION MEDIA
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which wireless technology is used on smart phones to transmit data to another device within only very close proximity?
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NFC
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Wi-Fi
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3G/4G
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Bluetooth
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Explanation:
Detailed explanation-1: -Near-field communication (NFC) is a short-range wireless connectivity technology that uses magnetic field induction to enable communication between devices when they’re touched together or brought within a few centimeters of each other.
Detailed explanation-2: -Bluetooth is a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances and building personal area networks (PANs).
Detailed explanation-3: -Bluetooth is a wireless system for connecting devices together such as computers and mobile phones when they are close to each other.
There is 1 question to complete.