engineering computer science MCQ #543

A cable has a bandwidth of 6 MHz and uses 256-QAM modulation. What is the maximum data rate?

engineering computer science MCQ #543

  1. Question 1

    Q1. A cable has a bandwidth of 6 MHz and uses 256-QAM modulation. What is the maximum data rate?

    • A) 48 Mbps
    • B) 72 Mbps
    • C) 96 Mbps
    • D) 144 Mbps

    Answer: 96 Mbps

    Explanation: For 256-QAM, the number of bits per symbol = log2(256) = 8. The symbol rate = bandwidth = 6 MHz. Data rate = symbol rate * bits per symbol = 6 * 10^6 * 8 = 48 Mbps.