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Nokia 5G RAN Network Operations Expert - NRN-522 Exam Practice Test

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Total 122 questions

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Question 1

What does the NR-ARFCN (NR Absolute Radio Frequency Channel Number) represent in a 5G cell's configuration?

A. The percentage of available PRBs currently in use by the cell B. The number of active alarms currently reported by the cell C. A unique identifier for the cell within the core network's subscriber database D. A standardized numeric reference that identifies the specific carrier frequency on which the cell operates

Correct Answer: D

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Question 2

Handover Success Rate is a KPI primarily used to assess which aspect of network performance?

A. Mobility performance - how successfully UEs transfer between cells B. NetAct software license utilization C. The integrity of configuration backup files D. Software version compliance across the network

Correct Answer: A

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Question 3

A NOC engineer is investigating subscriber complaints of being unable to access data services even though their devices show a strong 5G signal and successfully camp on the cell. Which KPI should the engineer examine first to determine whether the issue lies in establishing the data bearer itself?

A. PDU Session / E-RAB Setup Success Rate B. Cell Availability C. Reference Signal Received Power (RSRP) distribution D. Handover Success Rate

Correct Answer: A

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Question 4

What is the primary purpose of the Tracking Area Code (TAC) configured on a 5G cell?

A. It identifies the specific hardware vendor of the baseband unit B. It groups cells into areas used for UE location tracking and paging in idle mode, helping manage mobility signaling efficiently C. It defines the maximum transmit power permitted for the cell D. It specifies which software version is installed on the base station

Correct Answer: B

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Question 5

The PLMN ID broadcast by a 5G cell is composed of which two elements, and what is its primary function?

A. IP address and VLAN ID - used for OandM transport routing B. PCI and frequency band - used to determine cell transmit power C. Mobile Country Code (MCC) and Mobile Network Code (MNC) - used by UEs to identify and select the correct operator's network D. Cell ID and Tracking Area Code - used to route handovers between cells

Correct Answer: C

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Question 6

NetAct shows an AirScale gNB as 'Connection Lost' although there has been no reported power outage at the site. What should the NOC engineer check FIRST?

A. Antenna electrical tilt settings B. Cell Physical Cell Identity (PCI) configuration C. IP connectivity/transport link between NetAct and the site (routing, firewall, backhaul status) D. RF unit VSWR readings

Correct Answer: C

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Question 7

Why does Nokia recommend configuring automatic session timeout (inactivity logout) for remote management sessions to AirScale base stations?

A. To reduce electricity consumption at the site B. To increase the radio coverage range of the cell C. To limit exposure if a session is left open and unattended, reducing the risk of unauthorized access or changes D. To force the base station to restart on a regular schedule

Correct Answer: C

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Question 8

In NetAct's role-based access control model, which role would typically be assigned to a NOC engineer who needs to perform routine cell parameter and neighbor relation changes, but should NOT be able to modify user accounts or system-wide security settings?

A. Guest / read-only user B. Database Administrator C. Operator with Configuration Management (CM) provisioning privileges D. System Administrator

Correct Answer: C

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Question 9

During a complex remote piloting activity involving multiple steps and risk of service impact, what additional coordination practice helps ensure accountability and a clear record of what was agreed and performed at each stage?

A. Conducting the activity exclusively through anonymous communication channels with no record of who performed each action B. Performing all steps simultaneously without any sequencing to save time C. Conducting the activity using a shared bridge call or chat channel where each step, confirmation, and result is verbally or textually logged in real time as the activity progresses D. Avoiding any real-time communication so as not to distract the field engineer

Correct Answer: C

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Question 10

What is the primary purpose of the secure IPsec VPN tunnel established between a centralized Operations Center and a remote 5G site's transport network?

A. To compress software packages before download B. To boost the radio transmit power of the cell C. To replace the need for alarm monitoring D. To encrypt and authenticate OandM traffic exchanged between NetAct/NOC and the base station

Correct Answer: D

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Total 122 questions

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