Free Nokia NRN-522 Exam Dumps Questions & Answers

How is the Cell Availability KPI typically calculated for a reporting period, and what does this KPI primarily reflect?

• A.  (Total successful handovers / total handover attempts) x 100 - reflects mobility performance
• B.  (Total active alarms / total cleared alarms) x 100 - reflects fault management efficiency
• C.  (Total time the cell was in service / total time in the period) x 100 - reflects how much of the period the cell was able to carry traffic
• D.  (Total downlink throughput / total uplink throughput) x 100 - reflects traffic balance

Some alarms in NetAct FM clear automatically once the underlying fault condition no longer exists, while others require manual clearing by an engineer. What characterizes an alarm that requires manual clearing?

• A.  Alarms can never be cleared once raised, under any circumstances
• B.  Alarms representing transient conditions that the network element detects and resolves entirely on its own
• C.  Alarms representing conditions the system cannot reliably verify as resolved on its own, requiring an engineer to confirm and clear after corrective action
• D.  All alarms in NetAct always clear automatically with no exceptions

A NOC engineer is trying to isolate whether a fault originates in the baseband processing unit or in an RF module of an AirScale BTS. What is a useful FIRST diagnostic step?

• A.  Restart the entire NetAct management server
• B.  Immediately replace the antenna
• C.  Increase transmit power to see if the fault changes
• D.  Check the status and alarm details of the interface (such as CPRI/eCPRI links) between the System Module and the RF unit

Before rolling out a new software release across an entire region's base stations, an operator first activates it on a small subset of sites and closely monitors their performance for a period of time. What is this practice commonly called, and what is its primary benefit?

• A.  A bulk parameter update - its benefit is applying neighbor relation changes more quickly
• B.  A configuration audit - its benefit is verifying PLMN ID consistency
• C.  A factory reset campaign - its benefit is reducing license costs
• D.  A staged or pilot (canary) rollout - its benefit is detecting any issues introduced by the new software on a limited number of sites before wider deployment, limiting the potential impact of unforeseen problems

A 'High VSWR' (Voltage Standing Wave Ratio) alarm is raised on an RF unit's antenna branch. What does this alarm typically indicate a problem with?

• A.  The antenna, feeder cable, or RF connector on that branch
• B.  The operator's subscriber billing database
• C.  The core network's mobility management function
• D.  The NetAct server's storage capacity