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Nokia NRN-522 Exam Syllabus Topics:

Nokia 5G RAN Network Operations Expert Sample Questions:

1. An 'Equipment Over-Temperature' alarm is raised at a remote site. Besides checking the cooling system itself, what else should a NOC engineer review related to this alarm?

A) The NetAct software license expiry date
B) Whether a cabinet door-open, fan failure, or HVAC/air-conditioning fault alarm is also present, indicating a broader environmental issue
C) The handover success rate KPI
D) The cell's configured Physical Cell Identity (PCI)

2. Which KPI category do uplink and downlink packet loss rate counters primarily contribute to, and why are they operationally significant for a NOC team?

A) Accessibility - because packet loss prevents UEs from camping on the cell
B) Integrity - because packet loss directly affects the quality and reliability of data delivered during an active session
C) Availability - because packet loss determines whether a cell is counted as in service
D) Mobility - because packet loss is the main cause of handover failures

3. A NOC engineer needs to open an interactive command-line session directly to an AirScale BTS for advanced diagnostics. Which protocol should be used to comply with Nokia's secure remote access guidelines?

A) SSH
B) SNMPv1
C) Telnet
D) HTTP

4. A NOC engineer notices that UEs in a cell are triggering handovers to a neighboring cell and then quickly handing back, repeating this cycle (a 'ping-pong' pattern). Which parameter adjustment is most likely to help reduce this behavior?

A) Increasing the PCI value of one of the two cells
B) Reducing the channel bandwidth of both cells
C) Increasing the handover event hysteresis and/or time-to-trigger values for the relevant measurement event between the two cells
D) Disabling the neighbor relation between the two cells entirely

5. 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' cells always operate at higher transmit power than normal
D) 'Locked' reflects a deliberate administrative action taken intentionally, while 'Out of Service' due to a fault reflects an unintended operational failure

Solutions: