NRN-522 practice exam dumps, NRN-522 practice exam online

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Nokia NRN-522 Exam Syllabus Topics:

SectionObjectives
Remote Operations of 5G Radio Access Networks- 5G RAN Operations Center Procedures
  • 1. Operational workflows in a Network Operations Center
  • 2. Remote network operations concepts
Software Management- Base Station Software Operations
  • 1. Software maintenance and updates
  • 2. Managing 5G base station software
5G RAN Products and Solutions Management- Network Connectivity and Access
  • 1. Connecting to Nokia 5G RAN products
  • 2. Accessing and managing network elements remotely
Configuration Management- Parameter Administration
  • 1. Applying standard parameter configuration changes
  • 2. Remote configuration management
Fault and Alarm Management- Monitoring and Troubleshooting
  • 1. Analyzing operational issues
  • 2. Performing corrective actions
  • 3. Retrieving faults and alarms

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Nokia 5G RAN Network Operations Expert Sample Questions (Q21-Q26):

NEW QUESTION # 21
How is the Cell Availability KPI typically calculated for a reporting period, and what does this KPI primarily reflect?

Answer: B

Explanation:
Cell Availability is an Availability-category KPI that measures the proportion of a given reporting period during which a cell was operationally able to carry traffic - that is, unlocked, in service, and not blocked by a fault. It is calculated as the ratio of the time the cell was actually available to the total duration of the reporting period, expressed as a percentage. Periods of planned maintenance (administrative locking) are sometimes excluded or tracked separately from unplanned outages, depending on operator reporting policy, since the two have different operational implications. This KPI is critical for service level agreement (SLA) reporting and for identifying cells with recurring stability issues such as repeated automatic resets, hardware faults, or transport outages. It is distinct from throughput-based, handover-based, or alarm-count-based ratios, which belong to other KPI categories and answer different operational questions.


NEW QUESTION # 22
An AirScale base station simultaneously raises a 'Cell Out of Service' alarm and an 'RF unit communication failure' alarm. How should a NOC engineer typically interpret this combination using alarm correlation principles?

Answer: C

Explanation:
Alarm correlation in Fault Management helps distinguish a root-cause alarm from symptom (consequent) alarms that appear together for a single underlying problem. In this scenario, an RF unit communication failure indicates a problem with the radio hardware or its link to the baseband, which directly prevents the cell served by that RF unit from operating - this generates the Cell Out of Service alarm as a direct consequence. NOC procedure is to focus remediation on the root-cause alarm (the RF unit communication failure); resolving it should automatically clear the dependent Cell Out of Service alarm. Treating both as separate, unrelated faults wastes troubleshooting effort on what is really a single underlying issue. NetAct can display many simultaneous alarms per element, and a Cell Out of Service alarm is itself a symptom, not a cause of hardware failure.


NEW QUESTION # 23
A specific neighbor relation between Cell A and Cell B shows a consistently low handover success rate, while overall network-wide mobility KPIs remain healthy. What is the most appropriate first troubleshooting step?

Answer: A

Explanation:
Because the issue is isolated to a single neighbor relation rather than affecting overall network mobility, the problem is most likely localized to the configuration between these two specific cells rather than a broader hardware, transport, or core network fault - which would typically affect multiple relations or KPIs more broadly. The appropriate first step is to review the neighbor relation configuration, including parameters such as handover thresholds, measurement gap settings, frequency relations, and Automatic Neighbor Relation (ANR) data, to confirm the relation is correctly defined and that measurement configurations align with actual RF conditions between the two cells. Misconfigured handover thresholds, missing or incorrect frequency information, or an outdated neighbor list entry are common causes of localized handover failures.
Restarting hardware, rebooting core elements, or adjusting power network-wide are disproportionate actions that risk impacting unrelated cells and do not target the specific, isolated nature of the reported problem.


NEW QUESTION # 24
What best describes the role of 'remote piloting' as performed by a NOC engineer supporting a field engineer during an on-site hardware replacement?

Answer: B

Explanation:
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.


NEW QUESTION # 25
Some alarms in NetAct FM clear automatically once the underlying fault condition no longer exists, while others require manual clearing by an engineer. What characterizes an alarm that requires manual clearing?

Answer: D

Explanation:
Many alarms in NetAct FM are designed to self-clear: once the network element detects that the underlying condition no longer exists - for example, a transient link flap recovering on its own - the element sends a clear notification and the alarm is automatically removed from the active list. However, some alarms represent conditions where the element cannot reliably self-verify resolution, such as certain hardware faults requiring physical intervention, or conditions tied to actions needing human confirmation. These alarms may remain active even after corrective action has been taken, until an engineer manually clears them or the system completes a subsequent successful self-test. NOC engineers need to understand this distinction so the active alarm list accurately reflects current network status, and so that manual clearing is correctly performed as part of completing a maintenance action where required.


NEW QUESTION # 26
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