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Nokia NRN-522 Exam Syllabus Topics:

Nokia 5G RAN Network Operations Expert Sample Questions:

Question 1

In NetAct's role-based access control model, which role would typically be assigned to a NOC engineer who needs to perform routine cell parameter and neighbor relation changes, but should NOT be able to modify user accounts or system-wide security settings?

A. Database Administrator
B. System Administrator
C. Operator with Configuration Management (CM) provisioning privileges
D. Guest / read-only user

Question 2

What is the key difference between a cell that has been administratively 'locked' (disabled) and a cell that reports 'Out of Service' due to a fault?

A. There is no real difference; the two terms describe the same situation
B. 'Out of Service' cells are always the result of a software upgrade in progress
C. 'Locked' reflects a deliberate administrative action taken intentionally, while 'Out of Service' due to a fault reflects an unintended operational failure
D. 'Locked' cells always operate at higher transmit power than normal

Question 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. Change the cell's Tracking Area Code to match the RET unit's serial number
D. 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

Question 4

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 cell's PLMN ID was automatically changed during the replacement
D. The replacement RF unit's exterior paint color does not match the original

Question 5

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. Permanently delete the cell's configuration from NetAct to resolve the issue
B. Instruct the field engineer to discard the new unit and leave the site without further communication
C. 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
D. Continue indefinitely repeating the same remote troubleshooting steps without involving any other teams

Solutions: