Nokia 5G RAN Network Operations Expert : NRN-522

  • Exam Code: NRN-522
  • Exam Name: Nokia 5G RAN Network Operations Expert
  • Updated: Jul 28, 2026
  • Q & A: 122 Questions and Answers

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Nokia NRN-522 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Performance Monitoring and Optimization20%- Performance analysis and optimization
  • 1. Counter and trace analysis
  • 2. Parameter tuning for better performance
- Key performance indicators (KPIs)
  • 1. Accessibility, retainability, mobility KPIs
  • 2. Throughput and latency metrics
Topic 2: Security and Compliance10%- Security features and procedures
  • 1. Data integrity and encryption
  • 2. Access control and authentication
Topic 3: 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. F1, E1, Xn, NG interfaces
  • 2. User plane and control plane protocols
Topic 4: Network Configuration and Management25%- Software management and upgrades
  • 1. Software download, activation and rollback
  • 2. Backup and restore procedures
- Parameter management and configuration
  • 1. Cell, carrier and beam configuration
  • 2. Mobility and handover parameters
Topic 5: 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

Nokia 5G RAN Network Operations Expert Sample Questions:

1. What is the primary function of the AirScale System Module within an AirScale Base Transceiver Station (BTS)?

A) Generating the GPS satellite timing signal
B) RF amplification and antenna interfacing
C) Baseband processing, control-plane functions, and OandM connectivity, supporting multiple radio technologies under Single RAN
D) Providing power supply for the macro cabinet only


2. A 'High VSWR' (Voltage Standing Wave Ratio) alarm is raised on an RF unit's antenna branch. What does this alarm typically indicate a problem with?

A) The antenna, feeder cable, or RF connector on that branch
B) The NetAct server's storage capacity
C) The core network's mobility management function
D) The operator's subscriber billing database


3. While remotely piloting an RF unit replacement, the NOC engineer notices the new unit is detected but the cell fails to come into service, with an alarm indicating a CPRI/eCPRI configuration mismatch. What is a likely cause that the NOC and field engineer should jointly investigate?

A) The replacement RF unit's exterior paint color does not match the original
B) The field engineer used a different brand of cable ties than specified
C) The cell's PLMN ID was automatically changed during the replacement
D) The replacement RF unit is connected to a different physical port than the original unit, resulting in a mapping that does not match the existing configuration


4. A site reports a 'Rectifier Fault' or 'DC Power Fault' alarm together with multiple equipment alarms across different cabinets. What does the rectifier/DC power fault alarm relate to?

A) The configuration of neighboring cells
B) A software licensing issue on the base station
C) The site's AC-to-DC power supply system feeding the equipment
D) NetAct user account permissions


5. Why does NetAct support configuring automatic notifications, such as email or SMS, for Critical severity alarms to NOC personnel?

A) To reduce the total number of alarms the network generates
B) To ensure timely awareness of severe issues even when staff are not actively watching the FM dashboard, supporting faster initial response
C) To eliminate the need for any live alarm monitoring dashboard
D) To automatically resolve the underlying fault condition


Solutions:

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

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