What is Wi-Fi infrastructure?

A. A metropolitan area network that uses radio signals to transmit and receive data.
B. A means by which portable devices can connect wirelessly to a local area network, using access points that send and receive data via radio waves.
C. A communications technology aimed at providing high-speed wireless data over metropolitan area networks.
D. The inner workings of a Wi-Fi service or utility, including the signal transmitters, towers, or poles and additional equipment required to send out a Wi-Fi signal.


Answer: D

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