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Nokia NRN-522 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: 5G RAN Systems and Fault Management | - Alarm and fault handling
|
| Topic 2: Network Operations in 5G RAN | - Operations Center procedures
|
Nokia 5G RAN Network Operations Expert Sample Questions:
1. A cell consistently shows PRB utilization above 90% during peak hours, along with a rising number of RRC Connection Rejections due to insufficient resources. What does this combination of indicators most strongly suggest?
A) The cell's GNSS synchronization reference has been lost
B) The cell is experiencing a hardware fault on the RF unit
C) The cell has an incorrect neighbor relation configuration
D) The cell is suffering from capacity congestion during peak traffic periods
2. 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) Continue indefinitely repeating the same remote troubleshooting steps without involving any other teams
C) Permanently delete the cell's configuration from NetAct to resolve the issue
D) 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
3. A NOC engineer needs to open an interactive command-line session directly to an AirScale BTS for advanced diagnostics. Which protocol should be used to comply with Nokia's secure remote access guidelines?
A) HTTP
B) SNMPv1
C) Telnet
D) SSH
4. Before granting a new NOC engineer remote access credentials to production AirScale sites, what should be verified according to Nokia's operational security practices?
A) That the engineer owns a personal mobile phone
B) That the engineer holds physical keys to all site cabinets
C) That the engineer has completed required training and is assigned a role matching their responsibilities under the least-privilege principle
D) That the engineer's account has unrestricted access to all NetAct modules by default
5. 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 historical alarms for the site have been permanently deleted from NetAct
C) The site's PLMN ID has been changed to a temporary value during the upgrade
D) All neighbor relations for the site have been removed to prevent interference during the upgrade
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: D | Question # 3 Answer: D | Question # 4 Answer: C | Question # 5 Answer: A |






