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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Fault Management and Troubleshooting | 25% | - Alarm and fault handling
|
| Topic 2: Network Configuration and Management | 25% | - Software management and upgrades
|
| Topic 3: Performance Monitoring and Optimization | 20% | - Performance analysis and optimization
|
| Topic 4: 5G RAN Architecture and Fundamentals | 20% | - Protocol stack and interfaces
|
| Topic 5: Security and Compliance | 10% | - Security features and procedures
|
Das Expertenteam von PrüfungFrage hat neulich das effiziente kurzfriestige Schulungsprogramm zur Nokia NRN-522 Zertifizierungsprüfung entwickelt. Die Kandidaten sollen an dem 20-stündigen Kurs teilnehmen, dann können sie neue Kenntnisse beherrschen und ihre ursprüngliches Wissen konsolidieren und auch die Nokia NRN-522 Zertifizierungsprüfung leichter als diejenigen, die viel Zeit und Energie auf die Prüfung verwendet, bestehen.
67. Frage
A NOC engineer is trying to isolate whether a fault originates in the baseband processing unit or in an RF module of an AirScale BTS. What is a useful FIRST diagnostic step?
Antwort: B
Begründung:
When isolating a fault between baseband processing units and RF modules, checking the status and alarm details of the interconnecting interface - typically a CPRI or eCPRI link in AirScale architectures - between the System Module and the Radio unit is a logical first step. Alarms or abnormal status on this link can quickly reveal whether the problem lies in the connection itself (such as a fiber/cable fault or configuration mismatch) or within one of the connected components. This follows the principle of checking interfaces and boundaries before assuming a specific component has failed, avoiding unnecessary or premature hardware replacement. Replacing the antenna skips this diagnostic step entirely and risks an unwarranted field action.
Restarting NetAct is a network-wide action inappropriate for a single-site fault. Increasing transmit power to
'test' a suspected hardware issue is not a valid diagnostic method and could create interference.
68. Frage
What best describes the role of 'remote piloting' as performed by a NOC engineer supporting a field engineer during an on-site hardware replacement?
Antwort: A
Begründung:
Remote piloting describes a collaborative working model in which a NOC engineer, using centralized O and M tools such as NetAct and element managers, actively supports a field engineer performing physical work at a site. The NOC engineer's responsibilities typically include preparing the network element for the activity (such as locking affected cells), providing real-time guidance based on system status and diagnostic data, performing remote verification steps (such as confirming a replaced module is detected and operating correctly), and executing any remote configuration steps the new hardware requires. This combination of remote expertise and on-site physical capability allows complex maintenance to be carried out efficiently without requiring every engineer involved to have both deep RAN engineering and bring physically present. It is an active, collaborative role - not a passive one - and it relates only to the technical task at hand, not to logistics such as travel arrangements.
69. Frage
What is the purpose of license management functionality within NetAct as it relates to base station software and features?
Antwort: A
Begründung:
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.
70. Frage
A cell consistently shows PRB utilization above 90% during peak hours, along with a rising number of RRC Connection Rejections due to insufficient resources. What does this combination of indicators most strongly suggest?
Antwort: C
Begründung:
Sustained PRB utilization above roughly 90% indicates that nearly all available radio resources in the cell are being consumed, leaving little headroom for new connections or additional traffic. When this is combined with an increasing rate of RRC Connection Rejections specifically attributed to insufficient resources, it strongly indicates that the cell's admission control function is actively rejecting new connection attempts because demand exceeds available capacity - a clear signature of capacity congestion during busy periods.
This is fundamentally different from a hardware fault (which would typically generate equipment alarms and affect availability rather than just capacity), a synchronization loss (which affects timing-sensitive operations and often triggers specific sync alarms), or a neighbor relation issue (which would primarily affect mobility KPIs). Recognizing this pattern is important because it points toward capacity planning actions - such as carrier expansion, load balancing, or additional sectorization - rather than fault remediation.
71. Frage
Before activating a newly downloaded software package on a base station, why is it important to verify software compatibility with the unit's current hardware and configuration?
Antwort: C
Begründung:
Verifying that a software package is compatible with a base station's specific hardware variants, installed modules, and current configuration before activation helps avoid activation failures or operational issues that can arise when a software load does not properly support the hardware it is being applied to, or when configuration elements are incompatible with structural changes introduced in the new software. While an automatic fallback mechanism may eventually recover the unit to its previous working state if activation fails, relying on fallback as the primary safeguard introduces avoidable service disruption and consumes a maintenance window without achieving the intended upgrade. Compatibility considerations are relevant across all supported technologies within Nokia's Single RAN portfolio, not just legacy systems, and compatibility checks are a software lifecycle planning activity - they do not update physical inventory records or remove the need for post-activation health monitoring, which remains essential regardless of how thorough the pre-activation checks were.
72. Frage
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