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Nokia NRN-522 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Network Configuration and Management | 25% | - Software management and upgrades
|
| Topic 2: Performance Monitoring and Optimization | 20% | - Key performance indicators (KPIs)
|
| Topic 3: Fault Management and Troubleshooting | 25% | - Alarm and fault handling
|
| Topic 4: Security and Compliance | 10% | - Security features and procedures
|
| Topic 5: 5G RAN Architecture and Fundamentals | 20% | - Protocol stack and interfaces
|
Nokia 5G RAN Network Operations Expert Sample Questions:
A NOC engineer reviewing UE measurement reports notices that two physically adjacent 5G cells are broadcasting the identical Physical Cell Identity (PCI), causing UEs to receive ambiguous reference signals.
What is this condition called, and what is the appropriate remote corrective action?
- A. This is PCI confusion, and it should be resolved by adjusting the cells' reference signal power
- B. This is PCI confusion, and the only remedy is to delete the neighbor relation between the two cells
- C. This is a normal configuration and requires no action, since PCI values can be safely reused on adjacent cells
- D. This is a PCI collision, and it should be resolved by reassigning a unique PCI value to one of the conflicting cells
Correct Answer: D 🗳️
Explanation: Only visible for Prep4sures members. You can sign-up / login (it's free).
During remote piloting of a RET replacement, the field engineer reports that the new RET unit is physically connected, but the NOC engineer cannot detect it during an AISG device scan, while other ALDs on the same antenna line are detected normally. What is a likely cause the NOC engineer should consider?
- A. The site's Tracking Area Code needs to be updated to match the new device
- B. The cell's NR-ARFCN is configured incorrectly
- C. The new RET unit may have an AISG address conflict with another device on the same bus, or the connection to the bus itself may be faulty
- D. The RET unit's tilt range is set too high
Correct Answer: C 🗳️
Explanation: Only visible for Prep4sures members. You can sign-up / login (it's free).
Which KPI category does the RRC Connection Setup Success Rate primarily belong to, and what does a sustained drop in this KPI typically indicate?
- A. Accessibility - indicates UEs are having difficulty establishing an initial RRC connection to the cell
- B. Mobility - indicates handovers between cells are failing
- C. Integrity - indicates poor user-plane throughput
- D. Availability - indicates the cell has gone out of service
Correct Answer: A 🗳️
Explanation: Only visible for Prep4sures members. You can sign-up / login (it's free).
After successfully completing a significant remote configuration change on a base station and confirming normal operation, what additional lifecycle management step should the NOC team perform?
- A. Restore the previous backup immediately to undo the change that was just successfully applied
- B. Disable the network element's connection to NetAct to prevent further changes
- C. Delete all backups associated with the network element to free up storage
- D. Take an updated configuration backup reflecting the new state, so that this becomes the new baseline restore point for any future changes
Correct Answer: D 🗳️
Explanation: Only visible for Prep4sures members. You can sign-up / login (it's free).
What does an 'Antenna Line Device (ALD) fault' alarm on an AirScale cell typically indicate?
- A. A fault originating in the core network
- B. A fault affecting devices on the antenna line, such as a Remote Electrical Tilt (RET) controller or Tower-Mounted Amplifier (TMA)
- C. A fault within the NetAct database server
- D. An issue with a software feature license
Correct Answer: B 🗳️
Explanation: Only visible for Prep4sures members. You can sign-up / login (it's free).
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