優れたNRN-522試験問題を使用すると、NRN-522認定資格を取得して自分自身を向上させ、より良い未来とより良い未来を実現することができます。 NRN-522トレーニングガイドを使用すると、職業で認められます。 NRN-522試験のブレーンダンプは、より大きな会社に注目させる能力を証明できます。 その後、より良い仕事を取得し、適切な職場に行くための選択肢があります。 NRN-522試験問題を試してみてはいかがですか。NRN-522試験問題が最高の準備資料であることに驚かれることでしょう。
| Section | Objectives |
|---|---|
| Topic 1: Remote Operations of 5G Radio Access Networks | - 5G RAN Operations Center Procedures
|
| Topic 2: Software Management | - Base Station Software Operations
|
| Topic 3: Configuration Management | - Parameter Administration
|
| Topic 4: 5G RAN Products and Solutions Management | - Network Connectivity and Access
|
| Topic 5: Fault and Alarm Management | - Monitoring and Troubleshooting
|
我々の商品の質量を保証するために、専門家たちは商品の開発を研修しています。過去の試験のデータを基づいて、NRN-522問題集を開発しています。現在でも、問題集の更新に働いています。複数の更新を通して、今の的中率高いNRN-522問題集になりました。我々のNRN-522問題集で試験に合格することができると信じています。
質問 # 95
A cell repeatedly raises and clears 'Cell Unavailable' alarms. Performance data shows PRB utilization dropping to zero during exactly the same periods. Which area should be investigated FIRST as the likely root cause?
正解：B
解説：
When a cell repeatedly raises and clears 'Cell Unavailable' alarms, and PRB utilization simultaneously drops to zero during exactly those same intervals, this pattern strongly indicates the cell is genuinely going out of service intermittently, rather than a display or reporting artifact. The investigation should focus on causes capable of producing repeated, short-duration outages: transport link instability (brief link flaps causing loss of the cell's connectivity), loss of synchronization reference (particularly significant for TDD 5G, where sync loss can force a cell to stop transmitting to avoid interference), or unexpected hardware resets/restarts of the baseband or radio unit, potentially linked to environmental issues such as overheating or power fluctuations.
NetAct UI theme settings, subscriber handset models, and the billing system are entirely unrelated to RAN service availability and would not explain this correlated alarm and KPI pattern. Correlating alarm timing with PM data and environmental/transport alarms is a key NOC diagnostic technique.
質問 # 96
A site reports a 'Rectifier Fault' or 'DC Power Fault' alarm together with multiple equipment alarms across different cabinets. What does the rectifier/DC power fault alarm relate to?
正解：C
解説：
A 'Rectifier Fault' or 'DC Power Fault' alarm relates to the site's power infrastructure - specifically the rectifier units that convert incoming AC mains power into the DC voltage used by BTS equipment, often backed by a battery system to ride through short outages. When this alarm appears alongside multiple equipment alarms across different cabinets or modules at the same site, it strongly suggests a shared power supply problem affecting all equipment dependent on that source, rather than independent hardware faults occurring coincidentally across multiple unrelated components. This is unrelated to software licensing, neighbor cell configuration, or NetAct user permissions. Recognizing this pattern helps the NOC engineer correctly identify a power infrastructure issue as the likely root cause, prompting checks on AC mains status, battery backup health, or coordination with site facilities/power maintenance teams, rather than independently chasing each equipment alarm as a separate RAN hardware fault.
質問 # 97
When configuring NR-NR (5G-to-5G) neighbor relations to support mobility between two 5G cells operating on different frequency bands, which type of neighbor relation must be established?
正解：B
解説：
When two 5G NR cells operate on different frequency bands (or different carrier frequencies within the same band), mobility between them requires an inter-frequency neighbor relation to be configured. This relation must include the necessary frequency information identifying the target carrier, along with measurement configuration parameters that instruct the UE when and how to measure the candidate target frequency - since, unlike intra-frequency measurements, inter-frequency measurements typically require measurement gaps and are not performed continuously by the UE. An intra-frequency neighbor relation would only be appropriate if both cells operated on the same carrier frequency, which is not the case here. Inter-band 5G-to-
5G handovers are not automatic without configuration; the network must explicitly define the relation and measurement parameters to enable the UE to detect and report the target cell. EN-DC relations are specifically for LTE-NR dual connectivity scenarios and are unrelated to NR-NR mobility between two 5G cells.
質問 # 98
Why is an automatic fallback (rollback) mechanism important when activating new software on a base station?
正解：B
解説：
An automatic fallback mechanism is a critical safeguard in software lifecycle management. After activating a new software load, the base station undergoes a defined health-check period during which it must successfully come into normal operational state - for example, cells returning to service without critical faults. If this does not occur within the configured timeout, the automatic fallback mechanism reverts the unit to the previous software load that was known to be working, restoring service without requiring a NOC engineer to manually diagnose and correct the issue in real time. This significantly limits the duration and impact of a failed activation, which is especially important for remote sites where physical intervention would be slow. This mechanism does not delete the previous version immediately (it must remain available for the fallback to function), does not eliminate the need for post-activation monitoring, and does not automatically propagate changes to other base stations, which remains a separately scheduled and monitored activity.
質問 # 99
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?
正解：A
解説：
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.
質問 # 100
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NRN-522復習対策: https://www.passtest.jp/Nokia/NRN-522-shiken.html