engineering computer science MCQ #449

What is the maximum data rate of a channel with a bandwidth of 4000 Hz and a signal-to-noise ratio of 30 dB?

engineering computer science MCQ #449

  1. Question 1

    Q1. What is the maximum data rate of a channel with a bandwidth of 4000 Hz and a signal-to-noise ratio of 30 dB?

    • A) 40 kbps
    • B) 80 kbps
    • C) 32 kbps
    • D) 64 kbps

    Answer: 32 kbps

    Explanation: Using Shannon's theorem, C = B * log2(1 + S/N), where S/N = 10^(30/10) = 1000, C = 4000 * log2(1001) = 39868 bps or 32 kbps approx.