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Nokia NRN-522 Exam Syllabus Topics:

Nokia 5G RAN Network Operations Expert Sample Questions:

Question 1

During remote piloting of a RET replacement, the field engineer reports that the new RET unit is physically connected, but the NOC engineer cannot detect it during an AISG device scan, while other ALDs on the same antenna line are detected normally. What is a likely cause the NOC engineer should consider?

A. The new RET unit may have an AISG address conflict with another device on the same bus, or the connection to the bus itself may be faulty
B. The cell's NR-ARFCN is configured incorrectly
C. The site's Tracking Area Code needs to be updated to match the new device
D. The RET unit's tilt range is set too high

Question 2

NetAct shows an AirScale gNB as 'Connection Lost' although there has been no reported power outage at the site. What should the NOC engineer check FIRST?

A. Cell Physical Cell Identity (PCI) configuration
B. Antenna electrical tilt settings
C. RF unit VSWR readings
D. IP connectivity/transport link between NetAct and the site (routing, firewall, backhaul status)

Question 3

During a remote piloting activity, the NOC engineer and field engineer are unable to bring a replaced RF unit into service despite following standard verification and troubleshooting steps, and a hardware fault on the new unit itself is suspected. What is the most appropriate next step?

A. Instruct the field engineer to discard the new unit and leave the site without further communication
B. Escalate the issue to the next-level support team or vendor technical assistance, providing documented details of the steps already performed, the symptoms observed, and the suspected hardware fault, to support further diagnosis or part replacement
C. Continue indefinitely repeating the same remote troubleshooting steps without involving any other teams
D. Permanently delete the cell's configuration from NetAct to resolve the issue

Question 4

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

Question 5

A 'High VSWR' (Voltage Standing Wave Ratio) alarm is raised on an RF unit's antenna branch. What does this alarm typically indicate a problem with?

A. The core network's mobility management function
B. The operator's subscriber billing database
C. The antenna, feeder cable, or RF connector on that branch
D. The NetAct server's storage capacity

Solutions: