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Nokia NRN-522 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| 5G RAN Products and Solutions Management | - Network Connectivity and Access
|
| Remote Operations of 5G Radio Access Networks | - 5G RAN Operations Center Procedures
|
| Fault and Alarm Management | - Monitoring and Troubleshooting
|
| Configuration Management | - Parameter Administration
|
| Software Management | - Base Station Software Operations
|
Nokia 5G RAN Network Operations Expert Sample Questions:
1. In the context of Nokia's Single RAN approach, what does it mean for a base station site's software package to support 'Single RAN'?
A) It means a common hardware platform and software package can support multiple radio access technologies (such as 2G, 3G, 4G, and 5G) simultaneously on shared infrastructure
B) It means the site cannot receive any further software upgrades once Single RAN is enabled
C) It means the site can only support a single radio access technology (e.g., only 5G) for its entire operational lifetime
D) It means the site requires a separate, dedicated physical cabinet for each radio access technology it supports
2. An AirScale base station simultaneously raises a 'Cell Out of Service' alarm and an 'RF unit communication failure' alarm. How should a NOC engineer typically interpret this combination using alarm correlation principles?
A) NetAct can only display one alarm per base station at a time
B) The RF unit communication failure is the likely root cause, and the cell out of service alarm is a resulting symptom alarm
C) The two alarms are unrelated and must be investigated as two separate independent faults
D) The cell out of service alarm is always the cause of hardware failures
3. 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) Physically relocate the baseband unit to a different rack position
C) 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
D) Change the cell's Tracking Area Code to match the RET unit's serial number
4. A NOC engineer needs to recover a base station from a state where its parameter settings have been corrupted, but the underlying software load is functioning correctly. Which type of backup would be most directly applicable to resolving this specific issue?
A) An alarm history export, since it contains the parameter values needed for restoration
B) A PM counter export, since it records the configuration state at each reporting interval
C) A software backup only, since configuration data is always embedded within the software image itself
D) A configuration backup, since it contains the parameter data needed to restore the element's settings without requiring a software reinstallation
5. While remotely piloting an RF unit replacement, the NOC engineer notices the new unit is detected but the cell fails to come into service, with an alarm indicating a CPRI/eCPRI configuration mismatch. What is a likely cause that the NOC and field engineer should jointly investigate?
A) The replacement RF unit is connected to a different physical port than the original unit, resulting in a mapping that does not match the existing configuration
B) The field engineer used a different brand of cable ties than specified
C) The replacement RF unit's exterior paint color does not match the original
D) The cell's PLMN ID was automatically changed during the replacement
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: B | Question # 3 Answer: C | Question # 4 Answer: D | Question # 5 Answer: A |
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