Which one of the following has the shortest effective range in free space, assuming that the same transmit power level is used for each?

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Which one of the following has the shortest effective range in free space, assuming that the same transmit power level is used for each?

An 802.11g device
An 802.11a device
An 802.11b device
None of these answers

Explanation: The 802.11b and g devices operate at 2.4 GHz, which is less affected by free space loss than the 802.11a device, at 5 GHz.

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