WIRELESS NETWORKS AND MOBILE IP
WIRELESS NETWORKS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which one of the following wireless transmission types requires a clear LOS to function?
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Bluetooth
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NFC
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Infrared
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Wi-Fi
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Explanation:
Detailed explanation-1: -FHSS is used to take advantage of the 79 channels allocated to the Bluetooth band. NFC requires a clear LOS to function.
Detailed explanation-2: -24 non-overlapping unlicensed national information infrastructure (UNII) channels in 5 GHz frequency band.
Detailed explanation-3: -Yagi antennas are good for making point-to-point links in long narrow areas (for instance, connecting to a distant point in a valley) or for point-to-point links between buildings. They can also be used to extend the range of a point-to-multipoint network.
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