Assessment Test

  1. The decade that saw the first full-scale commercial application of fiber-optic communication systems was

    A. The 1880s

    B. The 1920s

    C. The 1960s

    D. The 1970s

  2. Which of the following groups describes the components in a fiber-optic link?

    A. Transmitter, receiver, optical fiber, decoder

    B. Transmitter, receiver, optical fiber, connectors

    C. Transmitter, receiver, optical fiber

    D. Transmitter, receiver, optical fiber, cabling

  3. In a fiber-optic link, which component has an input of electrical energy and an output of light energy?

    A. Connector

    B. Optical fiber

    C. Receiver

    D. Transmitte

  4. A 50 percent reduction in signal strength is a loss of ____________________________.

    A. 3dB

    B. 3dBm

    C. 7dB

    D. 7dBm

  5. Refraction is caused by ____________________________. ...

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