Q. What is the commonly used unit for measuring the speed of data transmission?
Answer: Bits per second
Notes: The commonly used unit for measuring the speed of data transmission is bits per second, abbreviated bps. The baud rate is actually the measure of transitions per second. A 56 kbps modem actually only changes its output amplitude, phase, and frequency 1200 times a second, but uses amplitude and phase to encode multiple bits into a single state.

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