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  1. Home
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  3. 4A0-255

Nokia Advanced Optical Network Design 4A0-255 Exam Questions in PDF

Free Nokia 4A0-255 Dumps Questions (page: 2)

4A0-255 PDF — 40 Questions

Which of the following is NOT an advantage of super-channels?

  1. Improved spectral efficiency
  2. Simplified management of the carriers
  3. Narrower spacing between carries of the super-channel
  4. Impairment-free transmission

Answer(s): C



Which of the following is NOT a functionality provided by a coherent receiver?

  1. Analog-to-digital conversion (ADC)
  2. Digital signal processing (DSP)
  3. Mixing
  4. Demultiplexing

Answer(s): C



Consider a signal at 100G PDM-QSK.
Which of the following statements is true?

  1. It supports more bits per symbol per polarization than 8QAM
  2. It has the same Gbaud rate as 100G 8QAM.
  3. Each symbol supported 2 bits per polarization.
  4. The Gbaud rate is 50.

Answer(s): A



Where is guardband mandatory for EMF?

  1. Between 10G and 40G channels
  2. Between 10G and 100G channels
  3. Between 10G and 200G channels
  4. Between 40G and 100G channels

Answer(s): C



Which of the following best describes Flexgrid?

  1. Flexgrid is based on flexible amplification stages
  2. Flexgrid uses flexible guardband that can take any spacing.
  3. Flexgrid is defined on a frequency grid spacing based on ,multiples of 12.5 GHz.
  4. Flexgrid allows channel bandwidth central frequencies and guardband to take any value in the spectrum range.

Answer(s): A



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