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Nokia NRN-522 Exam Syllabus Topics:

Nokia 5G RAN Network Operations Expert Sample Questions:

Question 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. The number of active alarms currently reported by the cell
C. The percentage of available PRBs currently in use by the cell
D. A unique identifier for the cell within the core network's subscriber database

Question 2

A NOC engineer is considering performing a remote factory reset on a base station as a troubleshooting step for a persistent issue. What is the most significant risk of this action if performed without proper preparation?

A. A factory reset automatically creates a new backup of the current configuration before proceeding
B. A factory reset may erase the unit's current configuration, requiring a full restoration from backup (or re- commissioning) to return the site to its operational state
C. A factory reset has no effect on the unit's configuration and is therefore always safe to perform
D. A factory reset only affects the unit's physical LED indicators and has no impact on service

Question 3

A NOC engineer wants to confirm that a newly installed AirScale BTS has completed commissioning and is ready to carry live traffic. Which indicator provides this confirmation?

A. The relevant cells show an unlocked/enabled administrative state and an operational 'in service' status in NetAct, with no blocking alarms
B. The power equipment vendor confirms their installation is complete
C. The site appears correctly on a public mapping application
D. The transport provider confirms that fiber has been physically installed at the site

Question 4

What operational benefit does the Automatic Neighbor Relation (ANR) function provide to a NOC team managing 5G RAN configuration?

A. It automatically increases a cell's transmit power whenever coverage gaps are detected
B. It automatically detects neighboring cells based on UE measurement reports and establishes or updates neighbor relations without requiring manual configuration of each relation
C. It automatically changes the PLMN ID of a cell when roaming agreements change
D. It automatically resolves all hardware faults on RF units without engineer intervention

Question 5

A NOC engineer observes that a 5G cell's average downlink user throughput has dropped significantly, but the cell's PRB utilization remains low and no transport alarms are active. Which root cause is most consistent with these observations?

A. The backhaul link to the cell site has failed completely
B. Degraded radio link quality is causing a shift toward lower-order modulation and coding schemes
C. The cell is severely congested due to a sudden increase in connected users
D. The cell has been administratively locked by an operator

Solutions: