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Noise in communication systems

Quiz by Dr. SUDHA M

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10 questions
Show answers
  • Q1
    What is meant by cross-talk in communication systems?
    The complete blocking of a communication channel
    A type of noise caused by signal distortion
    The intentional mixing of signals for improved communication
    Unwanted interference between signals on adjacent channels or communication paths
    30s
  • Q2
    What is meant by bit error rate (BER) in communication systems?
    The percentage of bits that are received incorrectly in relation to the total number of bits transmitted
    The total number of bits in a communication signal
    The maximum length of a bit sequence in a communication system
    The rate at which bits are transmitted in a communication system
    30s
  • Q3
    What is meant by signal-to-noise ratio (SNR) in communication systems?
    The speed at which signals travel through a medium
    The total amount of noise present in a communication system
    The ratio of the power of a signal to the power of the noise interference
    The frequency range of signals in a communication system
    30s
  • Q4
    What is the role of a notch filter in communication systems?
    To eliminate noise entirely from the system
    To amplify all frequencies in the signal
    To attenuate specific frequencies or frequency ranges in the signal
    To introduce random noise into the signal
    30s
  • Q5
    What is impulse noise in communication systems?
    Noise introduced by signal amplification
    Noise that varies in frequency over time
    Short-duration disturbances that occur randomly and disrupt the communication signal
    Continuous noise generated by electrical devices
    30s
  • Q6
    What is quantization noise in communication systems?
    Error introduced when continuous signals are approximated by discrete levels
    Noise present only in analog communication systems
    Noise caused by external disturbances
    Random noise generated by quantization devices
    30s
  • Q7
    What is thermal noise in communication systems?
    Noise caused by signal distortion
    Noise caused by electromagnetic radiation
    Noise caused by external interference
    Noise caused by random movement of electrons in a conductor due to thermal energy
    30s
  • Q8
    Which method is commonly used to mitigate noise in communication systems?
    Ignoring the noise
    Adding more noise to the system
    Error correction coding
    Increasing the noise level
    30s
  • Q9
    What is the impact of noise in communication systems?
    Noise can enhance the clarity of the communication signal.
    Noise has no effect on communication signal.
    Noise can degrade the quality of the communication signal.
    Noise can be eliminated completely from the communication system.
    30s
  • Q10
    Which of the following is a common type of noise in communication systems?
    Gaussian noise
    Pink noise
    Brownian noise
    White noise
    30s

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