Physical Layer MCQ

Below Physical Layer quiz are Multiple Choice Questions (MCQs) type Quiz. These Physical Layer MCQ Questions helps you to refresh your Physical Layer, you can see the correct option by clicking on it. .
  • 1. The Nyquist theorem specifies the minimum sampling rate to be_______.

    • equal to the lowest frequency of a signal
    • equal to the highest frequency of a signal
    • twice the bandwidth of a signal
    • twice the highest frequency of a signal
  • 2. A channel has a 1-MHz bandwidth. The SNR for this channel is 63. What is the appropriate bit rate?

    • 4 Mbps
    • 6 Mbps
    • 8 Mbps
    • 6 Mbps
  • 3. The signal rate is sometimes called the ____ rate.

    • baud
    • bit
    • signal
    • baud
  • 4. Digital data refers to the information that is

    • Continuous
    • Discrete
    • Bits
    • Discrete
  • 5. What is the bandwidth of a signal that ranges from 1 MHz to 4 MHz?

    • 4 MHz
    • 1 KHz
    • 3 MHz
    • 3 MHz
  • 6. A sine wave is defined by

    • amplitude
    • frequency
    • Phase
    • All of the above
  • 7. If a periodic signal is decomposed into five sine waves with frequencies of 100, 300, 500, 700, and 900 Hz, what is its bandwidth?

    • 2500 Hz
    • 900 Hz
    • 800 Hz
    • 800 Hz
  • 8. If the bit rate for an FSK signal is 1200 bps, the baud rate is ________.

    • 300
    • 400
    • 600
    • 1200
  • 9. A transmission media can have signal impairment because of

    • Noise
    • Attenuation
    • distortion
    • All of the above