Nokia NRN-522 : Nokia 5G RAN Network Operations Expert

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Nokia NRN-522 Exam Syllabus Topics:

Nokia 5G RAN Network Operations Expert Sample Questions:

1. 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?

A) NetAct can only display one alarm per base station at a time
B) The cell out of service alarm is always the cause of hardware failures
C) The two alarms are unrelated and must be investigated as two separate independent faults
D) The RF unit communication failure is the likely root cause, and the cell out of service alarm is a resulting symptom alarm

2. An 'Equipment Over-Temperature' alarm is raised at a remote site. Besides checking the cooling system itself, what else should a NOC engineer review related to this alarm?

A) The NetAct software license expiry date
B) The cell's configured Physical Cell Identity (PCI)
C) The handover success rate KPI
D) Whether a cabinet door-open, fan failure, or HVAC/air-conditioning fault alarm is also present, indicating a broader environmental issue

3. What is the standard alarm severity ordering used in NetAct Fault Management, from highest to lowest severity?

A) Minor, Warning, Critical, Major
B) Warning, Minor, Major, Critical
C) Major, Critical, Warning, Minor
D) Critical, Major, Minor, Warning

4. Why does Nokia recommend configuring automatic session timeout (inactivity logout) for remote management sessions to AirScale base stations?

A) To limit exposure if a session is left open and unattended, reducing the risk of unauthorized access or changes
B) To reduce electricity consumption at the site
C) To force the base station to restart on a regular schedule
D) To increase the radio coverage range of the cell

5. Over a period of several weeks, a NOC team observes that a particular cell's average PRB utilization during the busy hour has steadily increased from 60% to consistently above 85%, even though no faults or configuration issues have been identified. What is the most appropriate action based on this trend?

A) Ignore the trend since no active alarms are present
B) Reduce the cell's transmit power to discourage new connections
C) Immediately lock the cell to prevent further load increase
D) Flag the cell for capacity planning review, as the trend suggests the cell may require additional capacity to maintain performance

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