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Nokia NRN-522 Exam Syllabus Topics:

SectionObjectives
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. Base station software management
        • 2. Configuration parameter updates in live networks
          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. Retrieve faults and alarms
                • 2. Apply standard parameter configuration changes
                  • 3. Manage base station software lifecycle
                    • 4. Connect to Nokia 5G RAN products and solutions

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                      Nokia 5G RAN Network Operations Expert Sample Questions (Q115-Q120):

                      NEW QUESTION # 115
                      In NetAct Performance Management, what is a 'measurement job'?

                      Answer: B

                      Explanation:
                      In NetAct Performance Management, a 'measurement job' is a configured task that specifies which performance counters or KPIs should be collected, from which network elements (such as specific base stations or cells), and at what collection interval - for example, every 15 minutes or hourly. These jobs are the mechanism by which raw counter data is gathered from the RAN and made available for KPI calculation, reporting dashboards, and threshold-based alerting. Without properly configured measurement jobs covering the relevant counters and elements, the performance data needed to assess network health and detect KPI degradation would simply not be collected. This is distinct from a field technician's scheduled maintenance task, a software upgrade package (a Software Management concept), or a user account (an access control concept) - a measurement job specifically governs the automated, ongoing collection of performance statistics within the PM functional area.


                      NEW QUESTION # 116
                      A remote 5G site has redundant transport paths (primary and backup) providing OandM connectivity to NetAct. What is the main operational benefit of this redundancy?

                      Answer: C

                      Explanation:
                      Providing dual or redundant transport paths for O and M connectivity increases the resilience of remote management. If the primary backhaul link fails - for example, due to a fiber cut or a microwave link outage - the base station can continue to report alarms and performance data, and remain reachable for configuration changes via the secondary path, preserving the Operations Center's visibility and control without requiring a site visit purely to restore management connectivity. This redundancy specifically benefits the continuity of monitoring and management functions. It has no effect on a cell's radio coverage area, which depends on RF design parameters such as transmit power, antenna configuration, and frequency band, nor does it relate to spectrum-sharing arrangements between operators. It also does not eliminate the ongoing need for periodic software updates and patching, which remain a separate lifecycle management activity.


                      NEW QUESTION # 117
                      What is the purpose of license management functionality within NetAct as it relates to base station software and features?

                      Answer: A

                      Explanation:
                      License management within NetAct provides centralized tracking and administration of license keys and entitlements that govern which optional features, capacity thresholds, or performance levels are enabled on individual network elements. Because software capability and commercial licensing are often separated - meaning a base station may have software installed that is technically capable of supporting a feature, but the feature remains inactive until the corresponding license is applied - license management ensures that the correct entitlements are deployed, tracked for expiration or renewal, and can be audited across the network.
                      This is important for NOC teams when troubleshooting why an expected feature is not functioning, as a missing or expired license is a common cause distinct from a software or configuration fault. License management has no role in tracking physical spare parts inventory, PLMN ID assignment (a configuration management function), or scheduling site maintenance visits, all of which are handled through separate processes.


                      NEW QUESTION # 118
                      A NOC engineer notices that a cell's PRB (Physical Resource Block) utilization is consistently above 90% during peak hours. What does this MOST LIKELY indicate?

                      Answer: A

                      Explanation:
                      PRB (Physical Resource Block) utilization represents the proportion of a cell's available radio resources that are actively being used to carry traffic at a given time. Consistently high PRB utilization (for example, above
                      90%) during peak hours indicates the cell is approaching, or already experiencing, capacity congestion - there is little to no spare radio capacity to allocate to new or existing users during busy periods. This can directly affect throughput-related (Integrity) KPIs, since users may receive fewer resources than under lighter load, and can also impact accessibility if the cell becomes unable to admit new connections. This condition does not indicate a hardware failure - the cell is clearly operating and carrying significant traffic - is unrelated to PCI configuration, which is an identification parameter rather than a capacity indicator, and has no relationship to NetAct database storage. High PRB utilization is a capacity signal that may prompt load balancing, optimization, or capacity expansion actions.


                      NEW QUESTION # 119
                      What is the key difference between a graceful restart and an immediate (forced) restart of a base station unit during maintenance activities?

                      Answer: A

                      Explanation:
                      A graceful restart is designed to minimize the impact on active subscribers by allowing the system, where possible, to complete in-progress procedures or facilitate handovers of active sessions to neighboring cells before the restart actually takes effect, reducing the number of abruptly dropped connections. An immediate, or forced, restart proceeds without this consideration, restarting the unit right away regardless of any active sessions, which will be dropped as a result. NOC engineers may choose between these options depending on the urgency of the situation: a graceful restart is generally preferred for planned maintenance activities to minimize subscriber impact, while an immediate restart might be necessary in scenarios where a unit is unresponsive or where the urgency of resolving a critical fault outweighs the brief additional impact of dropped sessions. Neither option permanently disables the unit, and graceful restarts can be initiated remotely - they do not require physical power-cycling on site.


                      NEW QUESTION # 120
                      ......

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