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Nokia 4A0-265 Exam Syllabus Topics:

SectionObjectives
Network Diagnostics and Troubleshooting- Troubleshooting procedures
  • 1. Root cause analysis techniques
    • 2. Layered fault isolation approach
      - Fault detection methods
      • 1. Performance monitoring indicators
        • 2. Alarm interpretation and correlation
          Optical Equipment and System Operation- Nokia optical platform components
          • 1. ROADM and optical amplifiers
            • 2. Transponders and muxponders
              - System configuration and monitoring
              • 1. Network management system usage
                • 2. Provisioning and service activation basics
                  Maintenance and Optimization- Network optimization techniques
                  • 1. Signal quality optimization
                    • 2. Capacity and performance tuning
                      - Preventive maintenance
                      • 1. Degradation detection
                        • 2. Performance trend analysis
                          Optical Network Fundamentals- DWDM/OTN basics
                          • 1. Wavelength division multiplexing principles
                            • 2. Optical transport network architecture overview
                              - Optical transmission principles
                              • 1. Light propagation and fiber characteristics
                                • 2. Signal attenuation and dispersion concepts

                                  Nokia Optical Diagnostics and Troubleshooting Sample Questions:

                                  Question 1

                                  Suppose a network operator needs to configure the 10GbE client interface 1/7/C1 with a GFP-F encapsulation mode. Which command should be used?

                                  A. config encmode interface 1/7/C1 tenGige gfp-f
                                  B. config encmode interface 1/7/C1 10client gfp-f
                                  C. config interface 1/7/C1 encmode 10client gfp-f
                                  D. config interface 1/7/C1 tenGige encmode gfp-f


                                  Question 2

                                  Which of the following statements about 1-Day PMs is TRUE?

                                  A. 1-Day PMs show measurements collected since the beginning of the current day. Up to 33 bins are available for data storing.
                                  B. 1-Day PMs show measurements collected over the preceding 24 hours. Up to 33 bins are available for data storing.
                                  C. 1-Day PMs show measurements collected since the beginning of the current day. Up to 8 bins are available for data storing.
                                  D. 1-Day PMs show measurements collected over the preceding 24 hours. Up to 8 bins are available for data storing.


                                  Question 3

                                  Consider the exhibit. Given the following power readings, what is the calculated span loss from Node A to Node B?

                                  A. 11.5
                                  B. 1.5
                                  C. 8.0
                                  D. 2.5


                                  Question 4

                                  Suppose a Raman amplifier has been plugged into slot 1/8. Which command should the user enter to retrieve the total optical power detected at the ingress interface?

                                  A. show Interface 1/8/LINEIN
                                  B. show interface 1/8 opin
                                  C. show interface 1/8 power
                                  D. show interface 1/8/UNEIN detail


                                  Solutions:

                                  Question 1
                                  Answer: C
                                  Question 2
                                  Answer: D
                                  Question 3
                                  Answer: C
                                  Question 4
                                  Answer: D

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