Nokia 5G RAN Network Operations Expert 認定 NRN-522 試験問題:

1. Before performing a remote software upgrade on a base station, what should a NOC engineer ensure has been completed regarding the site's current state?

A) A current configuration and software backup has been taken and verified, providing a restore point if the upgrade encounters issues
B) All neighbor relations for the site have been removed to prevent interference during the upgrade
C) All historical alarms for the site have been permanently deleted from NetAct
D) The site's PLMN ID has been changed to a temporary value during the upgrade

2. A NOC engineer is investigating subscriber complaints of being unable to access data services even though their devices show a strong 5G signal and successfully camp on the cell. Which KPI should the engineer examine first to determine whether the issue lies in establishing the data bearer itself?

A) Reference Signal Received Power (RSRP) distribution
B) PDU Session / E-RAB Setup Success Rate
C) Cell Availability
D) Handover Success Rate

3. Cell Availability KPI is typically calculated based on which factor?

A) The number of active NetAct user sessions at a given moment
B) The percentage of time during a measurement period that a cell is in service, not blocked by faults or administrative locks
C) The signal strength reported by a single UE in the cell
D) The total number of software upgrades performed on the cell

4. After completing a software upgrade and subsequent configuration adjustments at a site, why is it important for the NOC engineer to update the site's maintenance records and change documentation?

A) Because documentation is purely a regulatory formality with no operational value
B) Because change documentation determines the cell's PCI value
C) Because accurate, up-to-date records of what changes were made, when, and by whom support future troubleshooting, audits, and provide context if related issues arise later
D) Because updating documentation automatically triggers a new software download to the site

5. When configuring NR-NR (5G-to-5G) neighbor relations to support mobility between two 5G cells operating on different frequency bands, which type of neighbor relation must be established?

A) An inter-frequency neighbor relation, including the appropriate frequency and measurement configuration for the target band
B) An EN-DC relation, since any handover involving different frequencies requires LTE anchoring
C) An intra-frequency neighbor relation only
D) No neighbor relation is required since inter-band handovers occur automatically without configuration

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