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H31-311_V2.5 – HCIA-Transmission V2.5

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Showing 7–9 of 10 questions

Question 7

Which of the following is the frame indicated by the VC-4 J1 byte by the AU pointer of the current frame?

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  • ○

    Current framework
  • ○

    Next frame
  • ○

    Previous frame
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    None of the above
Question 8

By default, B2-EXC alerts are reported when the number of B2 bit errors exceeds the () threshold.

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    0.000000001
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    0.00001
  • ○

    0.001

  • ○

    0.01
Question 9

The refractive index n1 of the fiber core must be the Q of the cladding refractive Mo n2, which is a necessary condition for transmitting the optical signal in the optical fiber.

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  • ○

    is higher than
  • ○

    Below
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    Equal