Network Media and Physical Layer Characteristics Quiz
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Questions and Answers

What is the process by which the characteristic of one wave modifies another wave?

  • Amplitude modulation
  • Frequency modulation
  • Modulation (correct)
  • Encoding
  • Which physical layer media uses patterns of microwave transmissions for signals?

  • Manchester encoding
  • Copper cable
  • Fiber-optic cable
  • Wireless (correct)
  • What is the main purpose of encoding in networking?

  • To transmit signals using modulation techniques
  • To convert light patterns into electrical pulses
  • To convert a stream of data bits into a predefined code (correct)
  • To identify the beginning and end of a frame
  • Which encoding method represents a 0 as a high to low voltage transition and a 1 as a low to high voltage transition?

    <p>Manchester encoding</p> Signup and view all the answers

    Which modulation technique varies the carrier frequency in accordance with the signal?

    <p>Frequency modulation</p> Signup and view all the answers

    What is the measure of the amount of data that can flow from one node to another?

    <p>Bandwidth</p> Signup and view all the answers

    What is the measure of bits transferred across the media over a given period of time?

    <p>Throughput</p> Signup and view all the answers

    What is the amount of time for data to travel from one point to another?

    <p>Latency</p> Signup and view all the answers

    What phenomenon refers to the deterioration of a signal as it travels over a distance?

    <p>Signal attenuation</p> Signup and view all the answers

    What causes disturbance in a signal carried by a wire due to the electric or magnetic fields of a signal in an adjacent wire?

    <p>Crosstalk</p> Signup and view all the answers

    When data is transmitted on copper cables as electrical pulses, what is the phenomenon referred to as the signal deteriorates over distance?

    <p>Signal attenuation</p> Signup and view all the answers

    What type of cable uses four pairs of wires, each wrapped in foil shield and then wrapped in an overall metallic braid to counter EMI/RFI and crosstalk?

    <p>Shielded twisted-pair (STP) cable</p> Signup and view all the answers

    What serves as the second wire in circuit and as a shield for the inner conductor to reduce electromagnetic interference in coaxial cable?

    <p>Woven copper braid</p> Signup and view all the answers

    Which type of physical media is characterized by light pulses traveling through a glass or plastic core?

    <p>Fiber optic cable</p> Signup and view all the answers

    What is the measure of bits transferred across the media over a given period of time in a network?

    <p>Throughput</p> Signup and view all the answers

    What is the main purpose of modulation in networking?

    <p>To modify one wave with the characteristics of another wave</p> Signup and view all the answers

    What is the encoding method where a 0 is represented by a high to low voltage transition and a 1 is represented as a low to high voltage transition?

    <p>Manchester encoding</p> Signup and view all the answers

    Which physical layer media uses patterns of light for signals?

    <p>Fiber-optic cable</p> Signup and view all the answers

    What phenomenon refers to the deterioration of a signal as it travels over a distance in network communication?

    <p>Attenuation</p> Signup and view all the answers

    What is the measure of the amount of data that can flow from one node to another over a given period of time?

    <p>Throughput</p> Signup and view all the answers

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