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Nokia 5G RAN Network Operations Expert Sample Questions:

1. 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) The two alarms are unrelated and must be investigated as two separate independent faults
B) The cell out of service alarm is always the cause of hardware failures
C) NetAct can only display one alarm per base station at a time
D) The RF unit communication failure is the likely root cause, and the cell out of service alarm is a resulting symptom alarm

2. Which NetAct functional area provides tools that allow an operator to apply the same parameter change consistently to multiple AirScale base stations or cells in a single operation?

A) Configuration Management (Bulk/Mass Update)
B) Software Management only
C) Performance Management
D) Fault Management

3. What is the key difference between a graceful restart and an immediate (forced) restart of a base station unit during maintenance activities?

A) A graceful restart can only be performed by physically power-cycling the equipment on site
B) There is no functional difference between the two; both terms describe identical behavior
C) A graceful restart permanently disables the unit, while an immediate restart only temporarily disables it
D) A graceful restart attempts to allow active sessions to complete or be handed over before the restart proceeds, reducing dropped connections, while an immediate restart proceeds without waiting, causing any active sessions to be dropped

4. When configuring NR-NR (5G-to-5G) neighbor relations to support mobility between two 5G cells operating on different frequency bands, which type of neighbor relation must be established?

A) An EN-DC relation, since any handover involving different frequencies requires LTE anchoring
B) An intra-frequency neighbor relation only
C) An inter-frequency neighbor relation, including the appropriate frequency and measurement configuration for the target band
D) No neighbor relation is required since inter-band handovers occur automatically without configuration

5. What is a 'threshold crossing alert' (TCA), and how does it differ from a standard equipment fault alarm?

A) It is functionally identical to an equipment fault alarm in every respect
B) It is generated when a monitored performance counter or KPI (e.g., PRB utilization) crosses a configured threshold, indicating a performance condition rather than necessarily a hardware failure
C) It applies only to software license expiry alarms
D) It is a fixed system value that operators cannot configure

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