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Nokia NRN-522 Exam Syllabus Topics:

Nokia 5G RAN Network Operations Expert Sample Questions:

1. What is the Nokia-recommended access control practice for NOC personnel who remotely manage live production AirScale base stations?

A) Leave default factory administrator passwords unchanged
B) Disable session logging to improve performance
C) Share a single generic administrator account among all engineers
D) Assign individual accounts with role-based access control (RBAC) following least-privilege principles

2. 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 field engineer used a different brand of cable ties than specified
B) The cell's PLMN ID was automatically changed during the replacement
C) 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
D) The replacement RF unit's exterior paint color does not match the original

3. Accessibility KPIs such as RRC Connection Setup Success Rate drop sharply for a single cell, while neighboring cells remain normal. What should the NOC engineer check FIRST?

A) The color theme configuration of the NetAct dashboard
B) Recent alarms or configuration changes specific to that cell, such as hardware/transport faults or recent parameter modifications
C) The operating system versions of handsets used by subscribers nationwide
D) The billing system records for that cell's coverage area

4. A NOC engineer observes an 'alarm storm' - dozens of alarms appearing within seconds across multiple cells served by the same site. What is the MOST likely explanation?

A) These alarms are unrelated to the site and can be safely ignored
B) NetAct has a software defect that always duplicates alarms across cells
C) A shared resource serving all those cells - such as the transport link, power supply, System Module, or synchronization source - has failed
D) Each cell independently and coincidentally developed an unrelated hardware fault at exactly the same moment

5. During a Site Acceptance Test (SAT) for a newly commissioned 5G site, what is the NOC team's typical role?

A) To remotely verify that the site is visible and manageable from centralized OandM systems, that cells come into service correctly, that no unexpected alarms are present, and that initial performance indicators are within expected ranges
B) To install the physical RF cabling between the antenna and the baseband unit
C) To negotiate the commercial contract terms for the site's construction
D) To physically inspect the antenna mounting hardware for structural compliance

Solutions: