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Nokia NRN-522

NRN-522

Exam Code: NRN-522

Exam Name: Nokia 5G RAN Network Operations Expert

Updated: Aug 05, 2026

Q&A Number: 122 Q&As

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Nokia NRN-522 Exam Syllabus Topics:

SectionWeightObjectives
Performance Monitoring and Optimization20%- Key performance indicators (KPIs)
  • 1. Throughput and latency metrics
  • 2. Accessibility, retainability, mobility KPIs
- Performance analysis and optimization
  • 1. Parameter tuning for better performance
  • 2. Counter and trace analysis
Fault Management and Troubleshooting25%- Alarm and fault handling
  • 1. Fault isolation and resolution steps
  • 2. Alarm classification and interpretation
- Common issues and solutions
  • 1. Interference and coverage issues
  • 2. Connection and access problems
Network Configuration and Management25%- Software management and upgrades
  • 1. Software download, activation and rollback
  • 2. Backup and restore procedures
- Parameter management and configuration
  • 1. Mobility and handover parameters
  • 2. Cell, carrier and beam configuration
Security and Compliance10%- Security features and procedures
  • 1. Access control and authentication
  • 2. Data integrity and encryption
5G RAN Architecture and Fundamentals20%- 5G RAN logical and physical architecture
  • 1. gNB functions and components
  • 2. NSA and SA deployment options
- Protocol stack and interfaces
  • 1. User plane and control plane protocols
  • 2. F1, E1, Xn, NG interfaces

Nokia 5G RAN Network Operations Expert Sample Questions:

1. Cell Availability KPI is typically calculated based on which factor?

A) The signal strength reported by a single UE in the cell
B) The number of active NetAct user sessions at a given moment
C) The percentage of time during a measurement period that a cell is in service, not blocked by faults or administrative locks
D) The total number of software upgrades performed on the cell


2. What is the key difference between a cell that has been administratively 'locked' (disabled) and a cell that reports 'Out of Service' due to a fault?

A) There is no real difference; the two terms describe the same situation
B) 'Out of Service' cells are always the result of a software upgrade in progress
C) 'Locked' cells always operate at higher transmit power than normal
D) 'Locked' reflects a deliberate administrative action taken intentionally, while 'Out of Service' due to a fault reflects an unintended operational failure


3. A NOC engineer is investigating subscriber complaints of being unable to access data services even though their devices show a strong 5G signal and successfully camp on the cell. Which KPI should the engineer examine first to determine whether the issue lies in establishing the data bearer itself?

A) PDU Session / E-RAB Setup Success Rate
B) Cell Availability
C) Handover Success Rate
D) Reference Signal Received Power (RSRP) distribution


4. How is the Cell Availability KPI typically calculated for a reporting period, and what does this KPI primarily reflect?

A) (Total active alarms / total cleared alarms) x 100 - reflects fault management efficiency
B) (Total downlink throughput / total uplink throughput) x 100 - reflects traffic balance
C) (Total time the cell was in service / total time in the period) x 100 - reflects how much of the period the cell was able to carry traffic
D) (Total successful handovers / total handover attempts) x 100 - reflects mobility performance


5. A 'Loss of Synchronization Reference' alarm appears on a 5G cell. Which input to the BTS is this alarm most directly associated with?

A) The cell's neighbor relation list
B) The NetAct user account password
C) The GNSS/timing reference (e.g., GPS) or other synchronization source feeding the base station
D) The handover success rate KPI


Solutions:

Question # 1
Answer: C
Question # 2
Answer: D
Question # 3
Answer: A
Question # 4
Answer: C
Question # 5
Answer: C

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