100% Pass High Pass-Rate NRN-522 - Nokia 5G RAN Network Operations Expert Braindumps

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Nokia NRN-522 Exam Syllabus Topics:

SectionObjectives
Topic 1: Network Operations in 5G RAN- Operations Center procedures
  • 1. Coordinate with technical support teams for issue resolution
    • 2. Support network operation center workflows
      - Remote operation of 5G Radio Access Network
      • 1. Apply standard parameter configuration changes
        • 2. Connect to Nokia 5G RAN products and solutions
          • 3. Retrieve faults and alarms
            • 4. Manage base station software lifecycle
              Topic 2: 5G RAN Systems and Fault Management- Alarm and fault handling
              • 1. Troubleshooting operational issues
                • 2. Fault detection and diagnosis in RAN nodes
                  - Software and configuration management
                  • 1. Configuration parameter updates in live networks
                    • 2. Base station software management

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                      Nokia 5G RAN Network Operations Expert Sample Questions (Q118-Q123):

                      NEW QUESTION # 118
                      A NOC engineer needs to recover a base station from a state where its parameter settings have been corrupted, but the underlying software load is functioning correctly. Which type of backup would be most directly applicable to resolving this specific issue?

                      Answer: C

                      Explanation:
                      When the issue is specifically that parameter/configuration data has become corrupted while the underlying software load remains functional, the most directly applicable recovery resource is a configuration backup - which contains the parameter settings (cell configuration, neighbor relations, transport settings, and so on) independent of the software image. Restoring from a configuration backup can address the corrupted settings without the additional time and disruption of reinstalling or reactivating software, which would be unnecessary in this scenario since the software itself is not the problem. Configuration data is a distinct dataset from the software image, not embedded within it, which is precisely why configuration-only backups exist as a lighter-weight option for scenarios like this. Alarm history and PM counter exports are records of operational events and measurements respectively - neither contains the parameter configuration data needed to restore an element's settings, making them unsuitable for this recovery scenario.


                      NEW QUESTION # 119
                      Which KPI category does the RRC Connection Setup Success Rate primarily belong to, and what does a sustained drop in this KPI typically indicate?

                      Answer: C

                      Explanation:
                      The RRC Connection Setup Success Rate is one of the primary Accessibility KPIs, measuring how reliably User Equipment (UE) can successfully establish a Radio Resource Control connection with the network when attempting to access services. A sustained decline in this KPI indicates that a meaningful proportion of connection attempts are failing before the UE even reaches an active signaling state, which directly impacts a subscriber's ability to begin a session. Common causes include radio interference, congestion-related admission control rejections, configuration errors affecting random access or initial signaling parameters, or hardware faults on the baseband or RF units. This differs from Mobility KPIs (which assess handover performance for already-connected UEs), Integrity KPIs (which assess throughput and quality during an active session), and Availability KPIs (which assess whether the cell itself is in service). Accessibility issues should be prioritized since they affect every subscriber attempting to use the cell.


                      NEW QUESTION # 120
                      What operational benefit does the Automatic Neighbor Relation (ANR) function provide to a NOC team managing 5G RAN configuration?

                      Answer: A

                      Explanation:
                      The Automatic Neighbor Relation (ANR) function reduces the manual configuration burden associated with maintaining accurate neighbor lists across a large RAN by using UE measurement reports to detect cells that UEs can actually see and successfully measure in the field. When a UE reports a previously unconfigured neighboring cell with sufficient signal quality, ANR can automatically add the appropriate neighbor relation (and, where applicable, retrieve the necessary identification information for that neighbor) so that future handovers toward that cell can be evaluated and executed. This is particularly valuable in dense, frequently changing network environments where manually planning every neighbor relation - especially across vendor or technology boundaries - would be time-consuming and error-prone. ANR does not address hardware faults, PLMN configuration, or transmit power adjustments, which are governed by separate fault management and RF parameter processes respectively, but it significantly improves the completeness and accuracy of neighbor relation databases that mobility KPIs depend on.


                      NEW QUESTION # 121
                      A NOC engineer increases the configuredMaxTxPower parameter for a 5G cell as part of a coverage improvement initiative. What is the most likely operational consequence of this change?

                      Answer: B

                      Explanation:
                      The configuredMaxTxPower parameter sets the maximum transmit power level the cell is permitted to use for its downlink transmissions, including reference signals and traffic channels. Increasing this value generally allows the cell's signal to reach further and penetrate obstacles more effectively, potentially expanding the effective coverage area and improving signal quality for UEs at the cell edge. However, because radio signals do not respect cell boundaries, a higher transmit power also means the cell's signal will be stronger when received by UEs and sensors in neighboring cell areas, which can increase co-channel or adjacent-channel interference - particularly relevant in dense deployments where cells are closely spaced. This trade-off means power changes should be planned carefully and their impact monitored through KPIs such as SINR and throughput in both the target cell and its neighbors. The parameter has no direct effect on software version, bandwidth configuration, or neighbor relation status, which are governed independently.


                      NEW QUESTION # 122
                      Accessibility KPIs such as RRC Connection Setup Success Rate drop sharply for a single cell, while neighboring cells remain normal. What should the NOC engineer check FIRST?

                      Answer: A

                      Explanation:
                      When accessibility KPIs such as RRC Connection Setup Success Rate drop sharply for one specific cell while neighboring cells remain normal, the most productive investigation focuses on factors specific to that cell:
                      reviewing recent alarms (hardware, transport, or synchronization faults affecting only that cell) and checking the configuration management audit trail for any recent parameter change, neighbor relation update, or feature activation that coincided with the KPI drop. Because the issue is localized to a single cell rather than affecting the surrounding area broadly, it is unlikely to be caused by something network-wide such as handset operating system versions used nationwide, and it is entirely unrelated to the billing system or NetAct dashboard appearance settings. Correlating the timing of the KPI degradation with that cell's alarm history and recent CM changes is a standard, effective root-cause approach for localized accessibility issues.


                      NEW QUESTION # 123
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