Nokia 5G RAN Network Operations Expert Sample Questions:

1. Before a field engineer disconnects and removes an RF unit for replacement, what action should the NOC engineer typically perform first?

A) Increase the transmit power of neighboring cells to compensate for the upcoming outage
B) Permanently delete the cell's configuration from NetAct
C) Change the cell's PLMN ID to prevent UEs from attempting to connect
D) Administratively lock the affected cell(s) so the disconnection occurs in a controlled state rather than appearing as an unexpected fault

2. Before activating a newly downloaded software package on a base station, why is it important to verify software compatibility with the unit's current hardware and configuration?

A) Because compatibility verification eliminates the need for any post-activation monitoring
B) Because activating an incompatible software package can result in activation failure, degraded functionality, or the unit failing to return to normal operation, even if the automatic fallback eventually recovers it
C) Because software compatibility checks are only relevant for 2G equipment and do not apply to 5G base stations
D) Because compatibility checks automatically update the site's physical inventory records

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

4. A NOC team is investigating a degradation in E-RAB / QoS flow setup success rate for a specific gNB.
Which approach is MOST effective for identifying the root cause?

A) Restarting NetAct entirely without further analysis
B) Reviewing only high-level marketing performance summaries
C) Correlating the KPI degradation with active alarms, recent configuration changes, and relevant counters (e.g., resource congestion, transport, signaling) for that gNB during the affected period
D) Assuming the cause is always the subscribers' devices without checking network-side data

5. What best describes the role of 'remote piloting' as performed by a NOC engineer supporting a field engineer during an on-site hardware replacement?

A) The NOC engineer remotely controls the field engineer's vehicle to ensure timely arrival at the site
B) The NOC engineer uses centralized OandM tools to guide the field engineer through the procedure step- by-step, performing remote configuration, verification, and diagnostic actions while the field engineer carries out the physical tasks on site
C) The NOC engineer has no active role and simply waits for the field engineer to report task completion
D) The NOC engineer travels to the site to physically perform the hardware replacement alongside the field engineer

Solutions: