Describe the basic of how a cellular telephony works.

What will be an ideal response?


The key to understanding how cellular telephony works is that the coverage area is divided into smaller individual sections, called cells. At the center of each cell are a transmitter and a receiver with which the mobile devices near that cell communicate, via RF signals. These transmitters are connected to a base station, and each base station is connected to a mobile telecommunications switching office (MTSO). The MTSO is the link between the cellular phone network and the wired telephone world.

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Which of the following wire colors would indicate a hot conductor?

a. green b. yellow c. white d. black

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If the brake pedal linkage is not adjusted correctly, brake fluid may not be able to expand back into the reservoir through the ________ of the master cylinder when the brakes get hot

A) Replenishing port (rearward hole) B) Vent port (forward hole) C) Rear seal D) Front seal

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What material should clothes worn during welding be made of?

A) 100% polyester B) 100% cotton C) 65% polyester, 35% nylon D) A polyester, nylon, acetate blend

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