すべての人が当社のNRN-522学習教材を使用することは非常に便利です。私たちの学習教材は、多くの人々が私たちの製品を購入した場合、多くの問題を解決するのに役立ちます。当社のNRN-522学習教材のオンライン版は、機器に限定されません。つまり、電話、コンピューターなどを含むすべての電子機器に学習教材を適用できます。そのため、当社のオンライン版NRN-522学習教材は、試験の準備に非常に役立ちます。私たちは、NRN-522学習教材が良い選択になると信じています。
| Section | Weight | Objectives |
|---|---|---|
| Fault Management and Troubleshooting | 25% | - Common issues and solutions
|
| Network Configuration and Management | 25% | - Software management and upgrades
|
| Security and Compliance | 10% | - Security features and procedures
|
| 5G RAN Architecture and Fundamentals | 20% | - Protocol stack and interfaces
|
| Performance Monitoring and Optimization | 20% | - Key performance indicators (KPIs)
|
我々社のNokia NRN-522問題集を購入するかどうかと疑問があると、弊社PassTestのNRN-522問題集のサンプルをしてみるのもいいことです。試用した後、我々のNRN-522問題集はあなたを試験に順調に合格させると信じられます。なぜと言うのは、我々社の専門家は改革に応じて問題の更新と改善を続けていくのは出発点から勝つからです。
質問 # 79
Before a field engineer disconnects and removes an RF unit for replacement, what action should the NOC engineer typically perform first?
正解：C
解説：
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.
質問 # 80
A NOC engineer observes an 'alarm storm' - dozens of alarms appearing within seconds across multiple cells served by the same site. What is the MOST likely explanation?
正解：D
解説：
An 'alarm storm' - many alarms appearing across multiple cells at a single site within a short window - is a classic indicator that a shared resource serving all of those cells has failed. Multiple cells at a site commonly depend on the same System Module (baseband), the same transport connection back to the aggregation/core network, the same power supply, or the same synchronization source; a failure in any one of these shared elements can simultaneously impact every dependent cell, producing a burst of correlated alarms.
Recognizing this pattern allows the NOC engineer to search for a single common-cause fault - for example, a transport outage or System Module failure - rather than treating each cell's alarms as independent issues requiring separate investigation. It is extremely unlikely that multiple independent hardware faults occur simultaneously by coincidence, and such patterns should never be dismissed as a routine NetAct bug or simply ignored.
質問 # 81
What is the primary purpose of the Tracking Area Code (TAC) configured on a 5G cell?
正解：B
解説：
The Tracking Area Code (TAC) is a configuration parameter that groups one or more cells into a Tracking Area, which the core network uses to manage UE location tracking while a device is in idle mode. When a UE moves between cells within the same Tracking Area, it does not need to perform a tracking area update, reducing signaling overhead. When a UE moves to a cell with a different TAC, it triggers a tracking area update procedure so the core network knows which area to page the UE in when there is incoming traffic.
Proper TAC planning is important: areas that are too large can increase paging load across many cells, while areas that are too small can increase signaling load from frequent tracking area updates. TAC has no relationship to hardware vendor identification, transmit power limits, or software versioning, which are configured and managed through entirely separate parameters and processes.
質問 # 82
In NetAct Performance Management, what is the standard default Result Output Period (ROP) used for collecting and reporting most cell-level performance measurement counters?
正解：B
解説：
The default Result Output Period (ROP) for performance management counters in Nokia's RAN solution is 15 minutes. This interval provides a practical balance between granularity and system load: it is short enough to allow NOC engineers to detect emerging issues, congestion trends, and KPI fluctuations close to real time, while not generating an unmanageable volume of measurement data that would overwhelm storage and processing resources in NetAct. Fifteen-minute granularity is widely used as the basis for accessibility, retainability, mobility, integrity, and availability KPI formulas, and is the standard interval referenced in performance dashboards and automated reports. While other reporting intervals (such as 1 hour or 24 hours) can be configured for specific measurement jobs or long-term trend analysis, the 15-minute ROP remains the operational baseline for day-to-day RAN performance monitoring and troubleshooting activities performed by remote operations teams.
質問 # 83
A NOC engineer needs to open an interactive command-line session directly to an AirScale BTS for advanced diagnostics. Which protocol should be used to comply with Nokia's secure remote access guidelines?
正解：C
解説：
SSH (Secure Shell) is the protocol mandated for interactive command-line access to AirScale base stations because it encrypts the entire session, including login credentials, commands, and output, protecting it from interception as it traverses the wide-area transport network between the Operations Center and the remote site. Telnet transmits all data, including usernames and passwords, in plain text and is explicitly disallowed on production network elements due to the severe security risk. HTTP may be used for some web-based management interfaces but is not the standard for direct CLI diagnostic sessions, and plain HTTP itself is also insecure unless using HTTPS. SNMPv1 is an older management protocol used for polling status and traps, lacks strong authentication and encryption, and is not used for interactive shell sessions. Nokia's hardening guidelines for remote operations require encrypted management protocols such as SSH for all direct element access.
質問 # 84
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弊社が提供したNRN-522問題集がほかのインターネットに比べて問題のカーバ範囲がもっと広くて対応性が強い長所があります。PassTestが持つべきなNokia問題集を提供するサイトでございます。
NRN-522資格トレーニング: https://www.passtest.jp/Nokia/NRN-522-shiken.html