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Nokia NRN-522 Exam Syllabus Topics:

Nokia 5G RAN Network Operations Expert Sample Questions:

1. Before applying a significant parameter change to a live production cell, what best practice should a NOC engineer follow regarding the cell's current configuration?

A) No precaution is necessary since all configuration changes in NetAct are automatically reversible without any preparation
B) Disable all alarm reporting for the cell so that any issues caused by the change do not generate alarms
C) Take and securely store a configuration backup or snapshot of the current settings before applying the change, enabling rollback if the change causes unexpected issues
D) Delete the cell's existing configuration entirely before applying the new parameters

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. What is the standard alarm severity ordering used in NetAct Fault Management, from highest to lowest severity?

A) Warning, Minor, Major, Critical
B) Major, Critical, Warning, Minor
C) Minor, Warning, Critical, Major
D) Critical, Major, Minor, Warning

4. 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

5. For security segmentation, NOC personnel typically do not connect directly from their workstations to production AirScale base stations. Instead, they first authenticate to an intermediate, hardened host. What is this intermediate host commonly called?

A) Edge router
B) Load balancer
C) DNS server
D) Jump server / bastion host

Solutions: