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Nokia NRN-522 certification exam is an online, proctored exam that can be taken from anywhere in the world. NRN-522 exam consists of 40 multiple-choice questions and has a time limit of 90 minutes. The passing score for the exam is 70%, and candidates who pass the exam will receive a digital certificate and badge that can be shared on social media and professional networks.
Nokia NRN-522 (Nokia 5G RAN Network Operations Expert) Certification Exam is a globally recognized certification program designed to validate the technical expertise of professionals in the field of 5G RAN network operations. Nokia 5G RAN Network Operations Expert certification exam tests the candidate's ability to design, plan, and optimize 5G RAN networks using Nokia's 5G RAN technology.
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Nokia NRN-522 (Nokia 5G RAN Network Operations Expert) Certification Exam is designed to test the skills and knowledge of professionals working in the field of 5G Radio Access Network (RAN) operations. NRN-522 exam covers a wide range of topics, including 5G RAN architecture, network planning and optimization, performance monitoring and troubleshooting, and security management. It is a comprehensive certification that aims to verify a candidate's ability to design, deploy, and maintain 5G RAN networks using Nokia equipment and technologies.
NEW QUESTION # 62
A remote 5G site has redundant transport paths (primary and backup) providing OandM connectivity to NetAct. What is the main operational benefit of this redundancy?
Answer: D
Explanation:
Providing dual or redundant transport paths for O and M connectivity increases the resilience of remote management. If the primary backhaul link fails - for example, due to a fiber cut or a microwave link outage - the base station can continue to report alarms and performance data, and remain reachable for configuration changes via the secondary path, preserving the Operations Center's visibility and control without requiring a site visit purely to restore management connectivity. This redundancy specifically benefits the continuity of monitoring and management functions. It has no effect on a cell's radio coverage area, which depends on RF design parameters such as transmit power, antenna configuration, and frequency band, nor does it relate to spectrum-sharing arrangements between operators. It also does not eliminate the ongoing need for periodic software updates and patching, which remain a separate lifecycle management activity.
NEW QUESTION # 63
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 # 64
A KPI tracks the percentage of established connections or sessions that end abnormally ('dropped') rather than through a normal release procedure. Which KPI category does this belong to?
Answer: B
Explanation:
Retainability KPIs measure whether connections or sessions that have been successfully established remain stable and are terminated through normal procedures, rather than ending abnormally (a 'drop'). A high abnormal release/drop rate indicates retainability problems - subscribers may experience calls or data sessions ending unexpectedly mid-use, significantly impacting user experience even when the initial connection (accessibility) succeeded. This differs from Accessibility, which measures the success of the initial connection attempt; Mobility, which specifically measures handover performance; and Availability, which measures whether a cell or site is in service over time. Retainability degradation can result from radio link failures, interference, transport instability, or hardware issues affecting an already-active connection. NOC engineers monitoring retainability KPIs focus on the stability of in-progress sessions, a key contributor to overall subscriber-perceived quality of service.
NEW QUESTION # 65
What is the Nokia-recommended access control practice for NOC personnel who remotely manage live production AirScale base stations?
Answer: B
Explanation:
Because a centralized Operations Center manages thousands of live network elements, strict access control is essential to maintaining network integrity and security. Nokia's operational security model requires each engineer to use an individually assigned account, with role-based access control (RBAC) restricting actions to those required for the user's job function - a configuration engineer might have provisioning rights, while a monitoring-only NOC analyst might have read-only access. This least-privilege approach provides full traceability of who performed which action, supports accountability during root-cause investigations, and limits the impact if any single account is compromised. Sharing a generic administrator account destroys individual accountability and increases risk of untraceable changes. Disabling session logging removes the audit trail needed for troubleshooting and compliance. Leaving default factory passwords unchanged is a well-known security vulnerability that must be remediated during commissioning, not a recommended ongoing practice.
NEW QUESTION # 66
Accessibility KPIs such as RRC Connection Setup Success Rate drop sharply for a single cell, while neighboring cells remain normal. What should the NOC engineer check FIRST?
Answer: B
Explanation:
When accessibility KPIs such as RRC Connection Setup Success Rate drop sharply for one specific cell while neighboring cells remain normal, the most productive investigation focuses on factors specific to that cell:
reviewing recent alarms (hardware, transport, or synchronization faults affecting only that cell) and checking the configuration management audit trail for any recent parameter change, neighbor relation update, or feature activation that coincided with the KPI drop. Because the issue is localized to a single cell rather than affecting the surrounding area broadly, it is unlikely to be caused by something network-wide such as handset operating system versions used nationwide, and it is entirely unrelated to the billing system or NetAct dashboard appearance settings. Correlating the timing of the KPI degradation with that cell's alarm history and recent CM changes is a standard, effective root-cause approach for localized accessibility issues.
NEW QUESTION # 67
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