$7\mathrm{.}1-2.$ Infrastructure Mode. What is meant when we say that a network of devices is operating in "infrastructure mode"?Group of answer choicesDevices communicate with each other and to the larger outside world via a base station $($also known as an access point$).$Network devices can communicate directly with each other, with no need for messages to be relayed through a base station. The devices are the "infrastructure".All network equipment, except the mobile devices, must be racked in a temperature$-$controlled and power$-$smoothed building.The mobile device is operating in a reduced power mode, forcing the network base station and routers to take on additional functionality that would normally be done by the mobile.