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Passing the Nokia NRN-522 exam demonstrates that you have the knowledge and skills needed to manage and operate 5G RAN networks effectively. It is also an excellent way to showcase your expertise to potential employers, as the demand for skilled network professionals with 5G experience continues to grow. As businesses around the world continue to embrace the benefits of 5G, obtaining a certification such as the Nokia NRN-522 can help you stay ahead of the game and keep your skills up to date.
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The Nokia 5G RAN Network Operations Expert certification exam consists of 40 multiple-choice questions that must be completed within 90 minutes. To pass the exam, candidates must achieve a score of at least 75%. NRN-522 Exam covers a broad range of topics related to 5G RAN network operations, including network performance optimization, troubleshooting, security management, and quality-of-service (QoS) management. Upon passing the exam, candidates will receive a certificate and a digital badge that can be shared on social media and professional networking platforms.
NEW QUESTION # 13
What is the function of cell reselection priority parameters configured for idle-mode UEs across different frequency layers (e.g., 5G vs. 4G, or different 5G bands)?
Answer: B
Explanation:
Cell reselection priority parameters are broadcast to idle-mode UEs and inform them how to prioritize different frequency layers (such as a 5G band versus an LTE band, or multiple 5G bands) when more than one suitable cell is available for camping. By assigning higher reselection priority to certain layers, an operator can influence idle-mode UE distribution - for example, encouraging UEs to camp on a 5G layer where available to ensure faster initial access to 5G services, or directing UEs away from a layer that is being prepared for maintenance. These parameters work alongside reselection thresholds and timers that prevent excessive reselection (ping-ponging) between layers. They do not control network registration eligibility (which depends on subscription and PLMN matching), transmit power limits (a separate RF parameter), or encryption key management (a security function handled through different mechanisms), but they play an important role in idle-mode load distribution and user experience from the moment a device wakes up.
NEW QUESTION # 14
Which KPI category includes the RRC Connection Setup Success Rate, which reflects a UE's ability to successfully gain initial access to the network?
Answer: D
Explanation:
Accessibility KPIs measure a UE's ability to successfully access network services when requested. RRC (Radio Resource Control) Connection Setup Success Rate is a foundational accessibility metric in 4G/5G, representing the percentage of RRC connection setup attempts - the first step a UE takes to establish a radio connection with the gNB - that complete successfully. A high accessibility value indicates subscribers can reliably initiate sessions when they attempt to. This differs from Retainability, which measures whether already-established connections remain stable until normally released; Mobility, which assesses handover performance as UEs move between cells; and Integrity, which assesses the quality and throughput of an established connection. Because RRC setup is the entry point to accessing the network, its success rate falls within Accessibility, a category NOC engineers monitor closely to detect access-related problems caused by congestion, misconfiguration, or hardware faults preventing initial connections.
NEW QUESTION # 15
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?
Answer: B
Explanation:
NetAct's role-based access control allows different roles to be granted permission sets aligned with job responsibilities. An 'Operator' role with CM provisioning privileges is scoped to perform day-to-day configuration tasks - such as modifying cell parameters, neighbor relations, or power settings - without holding the broader privileges of a System Administrator, who manages user accounts, security policy, and overall NetAct system configuration. A Guest or read-only user can view alarms, performance reports, and configuration data but cannot make changes, so this role would prevent the engineer from performing the required provisioning tasks at all. A Database Administrator role focuses on the underlying database infrastructure supporting NetAct rather than RAN configuration provisioning. Assigning an Operator role with CM privileges follows the least-privilege principle: the engineer receives exactly the access required to perform routine provisioning, and nothing more.
NEW QUESTION # 16
A NOC engineer is preparing to remotely change a cell's duplex mode configuration from FDD to TDD. What critical dependency must be verified before this change can be successfully applied?
Answer: C
Explanation:
TDD (Time Division Duplex) operation requires precise time synchronization between cells, because uplink and downlink transmissions share the same frequency but are separated in time according to a coordinated frame structure. If neighboring TDD cells are not tightly synchronized, their uplink and downlink slots can overlap, causing severe cross-interference between cells. Before converting a cell's duplex mode to TDD, it is therefore critical to verify that the site has access to a reliable, accurate timing/synchronization reference - typically GNSS (such as GPS) or a network-based reference distributed via PTP (Precision Time Protocol) - and that the synchronization source is stable and within required accuracy limits. FDD (Frequency Division Duplex), by contrast, uses separate frequencies for uplink and downlink and does not have this same stringent synchronization dependency. SFTP connectivity, PLMN matching, and alarm acknowledgment status, while operationally relevant in general, are not the critical technical dependency specific to a duplex mode change.
NEW QUESTION # 17
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?
Answer: A
Explanation:
An 'Equipment Over-Temperature' alarm indicates internal temperature monitoring has detected conditions exceeding safe operating limits, which can lead to performance throttling or automatic protective shutdown of the affected hardware. Beyond inspecting the cooling system itself, a NOC engineer should check whether related environmental alarms are also present at the site, such as a cabinet door-open alarm (which disrupts climate control), a fan failure alarm, or an HVAC/air-conditioning fault alarm for the shelter or cabinet.
These correlated alarms often explain an over-temperature condition by pointing to a broader site environmental issue rather than an isolated equipment defect, helping correctly scope the response (for example, escalating an environmental/facilities issue rather than treating it purely as a RAN equipment fault).
The cell's PCI value, handover success rate, and NetAct license expiry date are entirely unrelated to thermal conditions and would not assist in diagnosing this alarm.
NEW QUESTION # 18
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