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___________ is a reverse link channel used by a subscriber unit to acknowledge.(a) RACH(b) AGCH(c) DCCH(d) PCHThis question was posed to me in an internship interview.I would like to ask this question from GSM Channel Types in section Wireless Systems and Standards of Wireless/Mobile

Answer»

The CORRECT choice is (a) RACH

To explain: The RACH (Random Access Channel) is a reverse link channel used by a subscriber unit to ACKNOWLEDGE a page from the PCH. It is also used by MOBILES to ORIGINATE a CALL.



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