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

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Nokia NRN-522 Exam Syllabus Topics:

Nokia 5G RAN Network Operations Expert Sample Questions:

Question #1
Some alarms in NetAct FM clear automatically once the underlying fault condition no longer exists, while others require manual clearing by an engineer. What characterizes an alarm that requires manual clearing?

A. Alarms representing transient conditions that the network element detects and resolves entirely on its own
B. All alarms in NetAct always clear automatically with no exceptions
C. Alarms can never be cleared once raised, under any circumstances
D. Alarms representing conditions the system cannot reliably verify as resolved on its own, requiring an engineer to confirm and clear after corrective action

Question #2
While remotely piloting an RF unit replacement, the NOC engineer notices the new unit is detected but the cell fails to come into service, with an alarm indicating a CPRI/eCPRI configuration mismatch. What is a likely cause that the NOC and field engineer should jointly investigate?

A. The cell's PLMN ID was automatically changed during the replacement
B. The replacement RF unit is connected to a different physical port than the original unit, resulting in a mapping that does not match the existing configuration
C. The replacement RF unit's exterior paint color does not match the original
D. The field engineer used a different brand of cable ties than specified

Question #3
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 factory reset campaign - its benefit is reducing license costs
B. A configuration audit - its benefit is verifying PLMN ID consistency
C. 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
D. A bulk parameter update - its benefit is applying neighbor relation changes more quickly

Question #4
How is the Cell Availability KPI typically calculated for a reporting period, and what does this KPI primarily reflect?

A. (Total active alarms / total cleared alarms) x 100 - reflects fault management efficiency
B. (Total time the cell was in service / total time in the period) x 100 - reflects how much of the period the cell was able to carry traffic
C. (Total downlink throughput / total uplink throughput) x 100 - reflects traffic balance
D. (Total successful handovers / total handover attempts) x 100 - reflects mobility performance

Question #5
Before applying a significant parameter change to a live production cell, what best practice should a NOC engineer follow regarding the cell's current configuration?

A. Take and securely store a configuration backup or snapshot of the current settings before applying the change, enabling rollback if the change causes unexpected issues
B. Delete the cell's existing configuration entirely before applying the new parameters
C. Disable all alarm reporting for the cell so that any issues caused by the change do not generate alarms
D. No precaution is necessary since all configuration changes in NetAct are automatically reversible without any preparation

Solutions: