How has communication benefitted from Internet use? (choose all that apply) a. People write to one another.
b. People are more able to easily and quickly communicate with one another.
c. No one communicates online.
d. People communicate across long distances in real time.

What is wi-fi infrastructure? a metropolitan area network that uses radio signals to transmit and receive data a communications technology aimed at providing high-speed wireless data over metropolitan area networks 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 includes 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