Free Nokia NRN-522 Exam Dumps Questions & Answers

Why is an automatic fallback (rollback) mechanism important when activating new software on a base station?

• A.It automatically applies the new software to all other base stations in the network simultaneously
• B.It prevents the NOC from ever needing to monitor the base station after a software activation
• C.It allows the base station to automatically revert to the previous, known-working software load if the new load fails to come into normal operation within a defined time, minimizing service downtime
• D.It permanently deletes the previous software version immediately after a successful activation

What is the function of cell reselection priority parameters configured for idle-mode UEs across different frequency layers (e.g., 5G vs. 4G, or different 5G bands)?

• A.They guide idle-mode UEs toward preferred frequency layers or cells, influencing which layer a UE camps on when multiple suitable options are available
• B.They define the maximum transmit power for each frequency layer
• C.They determine the encryption keys used for signaling on each frequency layer
• D.They determine which UEs are allowed to register on the network at all

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 RET unit's tilt range is set too high
• B.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
• C.The site's Tracking Area Code needs to be updated to match the new device
• D.The cell's NR-ARFCN is configured incorrectly

After a field engineer installs a brand-new RET unit (not a like-for-like replacement, but a new addition to the antenna line) and connects it to the AISG bus, what initial remote action does the NOC engineer typically need to perform to bring the device under management?

• A.Manually rewrite the base station's entire software image
• B.Perform an AISG device scan/discovery to detect the new device on the bus and then configure it within the system so it can be monitored and controlled
• C.Physically relocate the baseband unit to a different rack position
• D.Change the cell's Tracking Area Code to match the RET unit's serial number

A NOC team needs to apply an identical parameter change - updating a neighbor relation threshold - across
200 cells in a region. What NetAct CM capability is best suited to perform this efficiently and consistently?

• A.Manually logging into each cell's local Element Manager one at a time
• B.Software Management's remote delivery function
• C.Bulk Configuration Management (Mass Update), which allows the same parameter change to be applied across multiple selected network elements in a single operation
• D.The Fault Management active alarms list