NRN-522 Test Dumps Demo, NRN-522 Interactive Practice Exam

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Nokia NRN-522 Exam Syllabus Topics:

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

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                      Nokia 5G RAN Network Operations Expert Sample Questions (Q66-Q71):

                      NEW QUESTION # 66
                      During a remote piloting session, what communication practice is most important for the NOC engineer and field engineer to follow to ensure tasks are completed safely and correctly?

                      Answer: B

                      Explanation:
                      Effective remote piloting depends on clear, step-by-step communication where each action - whether performed by the field engineer physically or the NOC engineer remotely - is confirmed as complete before the next dependent step proceeds. This sequential confirmation approach ensures that both parties maintain an accurate, shared understanding of the site's current state at every point in the procedure, which is critical for both safety (for example, confirming a cell is locked before physical work begins near an antenna) and technical correctness (for example, confirming a physical connection has been made before the NOC engineer attempts to verify it remotely). Providing all instructions upfront without ongoing confirmation risks steps being missed, performed out of order, or performed before prerequisite conditions are met. Relying solely on non-real-time communication such as email is impractical for time-sensitive coordination, and allowing the field engineer to proceed entirely independently removes the collaborative verification that makes remote piloting effective and safe.


                      NEW QUESTION # 67
                      Over a period of several weeks, a NOC team observes that a particular cell's average PRB utilization during the busy hour has steadily increased from 60% to consistently above 85%, even though no faults or configuration issues have been identified. What is the most appropriate action based on this trend?

                      Answer: B

                      Explanation:
                      A steady upward trend in busy-hour PRB utilization over multiple weeks, in the absence of faults or configuration changes, is a classic indicator of organic traffic growth gradually consuming available capacity. While the cell may still be performing acceptably at 85% utilization, continuing this trend risks crossing into the congestion range (typically above 90%) where accessibility and throughput KPIs begin to degrade. The appropriate response is proactive: flagging the cell for capacity planning review allows engineers to evaluate options such as adding carriers, adjusting load balancing parameters, or planning sectorization before performance actually suffers. Ignoring the trend risks a reactive, customer-impacting outcome once congestion thresholds are crossed. Locking the cell or reducing transmit power would actively degrade service for existing users and is not an appropriate response to a capacity trend - these actions would be counterproductive and harm the very users the network is meant to serve.


                      NEW QUESTION # 68
                      A NOC engineer notices that UEs in a cell are triggering handovers to a neighboring cell and then quickly handing back, repeating this cycle (a 'ping-pong' pattern). Which parameter adjustment is most likely to help reduce this behavior?

                      Answer: D

                      Explanation:
                      Ping-pong handovers occur when a UE repeatedly hands over back and forth between two cells, often because the signal levels of both cells are very close to each other near the cell boundary, causing the handover trigger condition to be met in alternating directions in quick succession. Handover events (such as an A3 event, where a neighbor's signal becomes a defined offset better than the serving cell) include configurable hysteresis and time-to-trigger parameters. Increasing the hysteresis margin requires a more substantial and sustained signal difference before a handover is triggered, while increasing the time-to- trigger requires the condition to be met for a longer continuous duration before the measurement report is sent. Both adjustments reduce sensitivity to short-term signal fluctuations, directly addressing ping-ponging.
                      Disabling the neighbor relation would prevent legitimate handovers entirely, harming mobility performance; changing PCI values or bandwidth does not address the underlying signal-level trigger sensitivity that causes ping-pong behavior.


                      NEW QUESTION # 69
                      Before a field engineer disconnects and removes an RF unit for replacement, what action should the NOC engineer typically perform first?

                      Answer: D

                      Explanation:
                      Before a field engineer physically disconnects an RF unit, the NOC engineer should administratively lock the affected cell(s). Locking puts the cell into a controlled, planned out-of-service state, which has several benefits: it allows UEs currently served by the cell to be handed over or to reselect to neighboring cells in an orderly manner before the disconnection occurs, and it ensures that when the RF unit is disconnected, the resulting alarms are correctly understood by the NOC and any monitoring systems as part of a planned maintenance activity rather than an unexpected fault requiring separate investigation or triggering unnecessary alerts/escalations. Increasing neighboring cells' power is not a standard or necessary preparatory step and could introduce interference; deleting the configuration would require a full re- commissioning afterward; and changing the PLMN ID would be both ineffective at preventing the brief outage and disruptive to network identification.


                      NEW QUESTION # 70
                      What is the key difference between a cell that has been administratively 'locked' (disabled) and a cell that reports 'Out of Service' due to a fault?

                      Answer: D

                      Explanation:
                      'Locked' (administratively disabled) describes a deliberate, controlled state set by an operator or engineer - for example, intentionally taking a cell out of service for planned maintenance, an upgrade, or a configuration change window. This is an expected, reversible action: the cell can be 'unlocked' once the work is complete. 'Out of Service' due to a fault, by contrast, reflects an unintended operational failure - the cell was expected to be operating normally, but a fault condition (such as a hardware, transport, or synchronization issue) has prevented it from doing so, typically accompanied by one or more alarms.
                      Distinguishing these states matters for NOC engineers: a locked cell appearing down is expected and requires no fault investigation, whereas an unexpectedly out-of-service cell requires diagnosis. Neither state inherently relates to transmit power, and out-of-service conditions are not always due to software upgrades.


                      NEW QUESTION # 71
                      ......

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