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Nokia NRN-522 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Network Operations in 5G RAN | - Operations Center procedures
|
| 5G RAN Systems and Fault Management | - Alarm and fault handling
|
Nokia 5G RAN Network Operations Expert Sample Questions:
1. Accessibility KPIs such as RRC Connection Setup Success Rate drop sharply for a single cell, while neighboring cells remain normal. What should the NOC engineer check FIRST?
A) Recent alarms or configuration changes specific to that cell, such as hardware/transport faults or recent parameter modifications
B) The color theme configuration of the NetAct dashboard
C) The operating system versions of handsets used by subscribers nationwide
D) The billing system records for that cell's coverage area
2. A NOC engineer increases the configuredMaxTxPower parameter for a 5G cell as part of a coverage improvement initiative. What is the most likely operational consequence of this change?
A) The cell will automatically reduce its bandwidth to compensate for the power increase
B) The change will immediately disable all neighbor relations associated with the cell
C) The cell's coverage area may expand, but interference toward neighboring cells operating on the same or adjacent frequencies may also increase
D) The change has no impact on coverage or interference, only on the cell's software version
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 encrypt and authenticate OandM traffic exchanged between NetAct/NOC and the base station
C) To compress software packages before download
D) To replace the need for alarm monitoring
4. During PCI planning for a dense cluster of 5G cells, why is it important to avoid assigning PCI values that result in the same PCI modulo group (such as the same PCI mod 3 value) to closely located neighboring cells?
A) Because PCI mod values determine which software version each cell can run
B) Because cells with the same PCI mod 3 value cannot be included in the same Tracking Area
C) Because cells sharing the same PCI mod 3 group transmit certain reference signal sequences on the same resource elements, which can cause increased reference signal interference between those cells
D) Because PCI mod 3 values determine the cell's maximum allowed bandwidth
5. Which statement correctly distinguishes 'Integrity' KPIs from 'Accessibility' KPIs in RAN performance management?
A) Integrity KPIs measure the quality/throughput of an already-established connection, while Accessibility KPIs measure the success of initially establishing the connection
B) Accessibility KPIs exclusively measure data throughput
C) They represent the same underlying category, simply measured using different counters
D) Integrity KPIs apply only to 2G networks and have no 5G equivalent
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: C | Question # 3 Answer: B | Question # 4 Answer: C | Question # 5 Answer: A |



