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Nokia 4A0-265 Actual Tests : Nokia Optical Diagnostics and Troubleshooting

4A0-265 actual test
  • Exam Code: 4A0-265
  • Exam Name: Nokia Optical Diagnostics and Troubleshooting
  • Updated: Sep 10, 2026
  • Q & A: 40 Questions and Answers
  • PDF Demo
  • PC Test Engine
  • Online Test Engine
  • Total Price: $59.99  

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Nokia 4A0-265 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Troubleshooting Methodologies30%- Alarm and condition interpretation
  • 1. Fault isolation procedures
    • 2. Channel and line interface issues
      - Common optical impairments
      • 1. Non-linear effects, attenuation, dispersion
        • 2. Power balancing and adjustment
          Topic 2: Optical Network Architecture and Signal Flow25%- Amplifier configurations
          • 1. Ingress/egress amplification schemes
            • 2. Unidirectional/bidirectional amplification
              - 1830 PSS node architecture
              • 1. FOADM, ROADM, CDC-F structures
                • 2. Optical signal path and power budget
                  Topic 3: Optical Diagnostics and Monitoring Tools25%- Nokia management interfaces
                  • 1. Engineering and Planning Tool (EPT) reports
                    • 2. Web GUI and command-line access
                      - Performance Monitoring (PM) data analysis
                      • 1. Optical power levels and OSNR measurement
                        • 2. Wavelength Tracker (WT) functionality
                          Topic 4: Transponder and System Fault Resolution20%- Optical transponder faults
                          • 1. Line and client-side issues
                            • 2. Protection switching behavior
                              - Service restoration
                              • 1. Using Nokia support resources
                                • 2. Trail and connection recovery

                                  Nokia Optical Diagnostics and Troubleshooting Sample Questions:

                                  Question 1

                                  Suppose a unidirectional amplifier has been plugged into slot 1/13. Which command should the user enter to retrieve the OSC pluggable module type?

                                  A. show interface 1/13/OSC
                                  B. show interface 1/13/OSCSFP detail
                                  C. show interface 1/13/OSCSFP
                                  D. show interface 1/13/OSC detail


                                  Question 2

                                  Consider the exhibit which shows an EPT Power Management Report referring to an ingress amplifier. What is the available output optical power range?

                                  A. 0.56 to 1.72 dB
                                  B. -0.6 to 1.72 dB
                                  C. -0.02 to 1.14 dB
                                  D. 0.56 to 1.14 dB


                                  Question 3

                                  Consider the exhibit which shows part of an EPT Schematic View. Which number refers to the Wavelength Router (WR8-88) block?

                                  A. 1
                                  B. 3
                                  C. 2
                                  D. 4
                                  E. 5


                                  Question 4

                                  What is the typical severity level of a "Loss of Signal" (LOS) alarm?

                                  A. Minor
                                  B. Critical
                                  C. Major
                                  D. Warning


                                  Solutions:

                                  Question 1
                                  Answer: B
                                  Question 2
                                  Answer: B
                                  Question 3
                                  Answer: A
                                  Question 4
                                  Answer: B

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