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Nokia NRN-522 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Network Configuration and Management25%- Parameter management and configuration
  • 1. Cell, carrier and beam configuration
  • 2. Mobility and handover parameters
- Software management and upgrades
  • 1. Software download, activation and rollback
  • 2. Backup and restore procedures
Topic 2: Fault Management and Troubleshooting25%- Common issues and solutions
  • 1. Interference and coverage issues
  • 2. Connection and access problems
- Alarm and fault handling
  • 1. Fault isolation and resolution steps
  • 2. Alarm classification and interpretation
Topic 3: 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. gNB functions and components
  • 2. NSA and SA deployment options
Topic 4: 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 5: 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:

1. 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


2. Before rolling out a new software release across an entire region's base stations, an operator first activates it on a small subset of sites and closely monitors their performance for a period of time. What is this practice commonly called, and what is its primary benefit?

A) A bulk parameter update - its benefit is applying neighbor relation changes more quickly
B) A factory reset campaign - its benefit is reducing license costs
C) A configuration audit - its benefit is verifying PLMN ID consistency
D) A staged or pilot (canary) rollout - its benefit is detecting any issues introduced by the new software on a limited number of sites before wider deployment, limiting the potential impact of unforeseen problems


3. NetAct reports the transport link to a remote 5G site as 'up', but the NOC engineer still cannot establish an OandM session to the AirScale BTS. What is the MOST appropriate next troubleshooting step?

A) Increase the cell's reference signal transmit power
B) Restart the entire NetAct server
C) Immediately dispatch a technician to replace the RF module
D) Verify authentication credentials/certificates and the OandM IP/VLAN configuration on the base station


4. A NOC engineer notices that a cell's PRB (Physical Resource Block) utilization is consistently above 90% during peak hours. What does this MOST LIKELY indicate?

A) The cell's Physical Cell Identity (PCI) is misconfigured
B) The NetAct database storage is full
C) The cell is approaching or experiencing capacity congestion during peak hours, which may impact throughput-related KPIs
D) The cell's hardware has experienced a complete failure


5. The PLMN ID broadcast by a 5G cell is composed of which two elements, and what is its primary function?

A) Cell ID and Tracking Area Code - used to route handovers between cells
B) PCI and frequency band - used to determine cell transmit power
C) IP address and VLAN ID - used for OandM transport routing
D) Mobile Country Code (MCC) and Mobile Network Code (MNC) - used by UEs to identify and select the correct operator's network


Solutions:

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

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