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

  • Exam Code: NRN-522
  • Exam Name: Nokia 5G RAN Network Operations Expert
  • Updated: Oct 09, 2026
  • Q & A: 122 Questions and Answers

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Nokia NRN-522 Exam Syllabus Topics:

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

Nokia 5G RAN Network Operations Expert Sample Questions:

Question #1

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. 'Locked' reflects a deliberate administrative action taken intentionally, while 'Out of Service' due to a fault reflects an unintended operational failure
  • C. 'Locked' cells always operate at higher transmit power than normal
  • D. 'Out of Service' cells are always the result of a software upgrade in progress
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

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Question #2

A NOC team is investigating a degradation in E-RAB / QoS flow setup success rate for a specific gNB.
Which approach is MOST effective for identifying the root cause?

  • A. Correlating the KPI degradation with active alarms, recent configuration changes, and relevant counters (e.g., resource congestion, transport, signaling) for that gNB during the affected period
  • B. Restarting NetAct entirely without further analysis
  • C. Reviewing only high-level marketing performance summaries
  • D. Assuming the cause is always the subscribers' devices without checking network-side data
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

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Question #3

What is the primary purpose of the secure IPsec VPN tunnel established between a centralized Operations Center and a remote 5G site's transport network?

  • A. To boost the radio transmit power of the cell
  • B. To replace the need for alarm monitoring
  • C. To encrypt and authenticate OandM traffic exchanged between NetAct/NOC and the base station
  • D. To compress software packages before download
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

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Question #4

After a field engineer completes a baseband module replacement and confirms physical installation is complete, which set of remote checks should the NOC engineer perform to verify successful restoration of service?

  • A. Confirm the field engineer has left the site, without performing any further remote checks
  • B. Confirm that the cell's PCI has automatically changed to a new value
  • C. Confirm only that the module's indicator light is the correct color, without checking any system-level status
  • D. Confirm the cell(s) return to service without critical or major alarms, CPRI/eCPRI links to RF units are up, and relevant KPIs return to expected baseline levels
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

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Question #5

What does the NR-ARFCN (NR Absolute Radio Frequency Channel Number) represent in a 5G cell's configuration?

  • A. A standardized numeric reference that identifies the specific carrier frequency on which the cell operates
  • B. A unique identifier for the cell within the core network's subscriber database
  • C. The percentage of available PRBs currently in use by the cell
  • D. The number of active alarms currently reported by the cell
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

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