Sheet1SL.NO.SETQ no.QuestionProbable Answers/Answer Delima or reason of the ambiguity1GSM( CODE-19)17SGSN is connected toThe Answer Key is option "B" - BSC,since SGSN can also be connected to MSC there are multiple answers, moreover SGSN is connected to PCU and not to BSC,if the option shows BSS then it is aggreable.2GSM( CODE-19)58Value added services isThe Answer Key is option "D" - but Mobile Intellegent network services is not a Value added service as also Mobile Messaging which is a supplementary services.Hence option 'B' is the correct answer.3GSM( CODE-19)70In PRBT the rental amount isThe option in the answer key is 'D' Rs. 25/- it has changed now to Rs.30/-, hence there are no correct answers.4GSM( CODE-19)74Nominal voltage of fully charged VRLA battery at 27 CThe option in the answer key is 'A', but as per the document ATTACHED there is no term as nominal only float and charge voltages is indicated ,also fully charged nominal voltage is a misnomer.