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The signal to noise ratio for a voice grade line is 30.1 dB (decibels) or a power ratio of 1023:1. The maximum achievable data rate on this line whose spectrum ranges from 300 Hz to 4300 Hz is

6200 bps
9600 bps
34000 bps
31000 bps
None of the above

Correct Answer: 31000 bps

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