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Score Higher on Verified 4A0-255 | Nokia Advanced Optical Network Design Exam Questions with Answers

Are you ready to take the Nokia Advanced Optical Network Design? To learn 4A0-255 exam questions, smart security solutions, and move IT forward, you need the Nokia 4A0-255 Certification. Whether you're making security rules for the whole company or working on hard problems, Nokia makes sure you're ready for anything. Crack4sure offers study materials and practice problems covering the exam syllabus for Nokia Courses, including Nokia Advanced Optical Network Design. Check for daily deals to get products that can help you pass.

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  • Exam Name: Nokia Advanced Optical Network Design
  • Last Update: 04-Dec-2025
  • Questions and Answers: 40
  • Single Choice: 40 Q&A's

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4A0-255 Questions and Answers

Question # 1

Which of the following best describes Four Wave Mixing (FWM)?

A.

FWM is a linear impairment that produces crosstalk four adjacent wavelengths are used.

B.

FWM is a non-linear impairment that produces crosstalk at the sum and difference of two wavelengths.

C.

FWM is a non-linear impairment resulting from varying velocities at different frequencies.

D.

FWM is a linear impairment resulting from pulses broadening over ultra-longdistances

Question # 2

Which of the following is NOTan advantage of super-channels?

A.

Improved spectral efficiency

B.

Simplified management of the carriers

C.

Narrower spacing between carries of the super-channel

D.

Impairment-free transmission

Question # 3

What isguardband required for?

A.

To reduce the impact of chromatic dispersion.

B.

To properly use the available bandwidth of the fibers.

C.

To enable each channel to support a higher modulation format.

D.

To reduce non-linear impairments between coherent and non-coherent channels.

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