Chapter 12, Problem 9RQ

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“TDMA” is a method possessed by GSM network to separate data on a channel.

Hence, the correct answer is option “C”.

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Explanation of Solution

TDMA:

• Time Division Multiple Access (TDMA) is a technology used in digital cellular telephone used for sharing the channel without interface.
• It is same as TDM in which signals originate from the same source whereas in TDMA the signals originate from different source.
• It allows multiple stations to share same transmission channel by diving signals into different time slots.
• Using TDMA, digital communication of data is separated by timeslots on channel.

Explanation for incorrect options:

SIM:

It stands for Subscriber Identity Module card that stores a data in a microchip. The data may be about the subscription a user has with the cellular carrier.

Hence, option “A” is wrong...