COMPUTER NETWORKS AND COMMUNICATIONS
WIRELESS COMMUNICATION TECHNOLOGIES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The phone call goes out, transmits through microwaves, then moves to the central hub. Then the signals go to the nearest tower to the receiver of the call
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The phone call goes out, transmits through radio waves, then moves to the central hub. Then the signals go to the nearest tower to the receiver of the call
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The phone call goes out, transmits through microwaves, then moves to the tower. Then the signals go to the nearest hub to the receiver of the call
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The phone call just magically gets to the other phone
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Detailed explanation-1: -Whenever a cell phone is used, it emits an electromagnetic radio wave, called a radio frequency, that is received by the nearest cell tower’s antenna. Once the cell tower receives this signal, it will transmit the signals to a switching center.
Detailed explanation-2: -You can use your phone’s mobile data to connect another phone, tablet, or computer to the internet. Sharing phone’s data this way is called tethering or using a hotspot. Most Android phones can share mobile data through Wi-Fi, Bluetooth, or USB.
Detailed explanation-3: -A microchip in the phone modulates (or varies) a radio wave using the electrical signal. The radio wave travels through the air to a nearby cell tower; the tower sends your voice to the person you are calling and the process is reversed so that the person on the other end can hear your voice.
Detailed explanation-4: -Network Cell Info Lite (for Android) This highly-rated free Android app uses crowdsourced 4G and 5G tower location data from Mozilla Location Services. Once you open the app, go to the “map” tab. You’ll see nearby towers, and the app will draw a blue line to the tower you’re connected to.