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| Section | Objectives |
|---|---|
| Topic 1: Network Operations in 5G RAN | - Operations Center procedures
|
| Topic 2: 5G RAN Systems and Fault Management | - Software and configuration management
|
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NEW QUESTION # 21
During a Site Acceptance Test (SAT) for a newly commissioned 5G site, what is the NOC team's typical role?
Answer: C
Explanation:
During a Site Acceptance Test for a newly commissioned site, the NOC team's role centers on remote verification from the centralized operations perspective, complementing the field team's physical inspection and commissioning activities. This typically includes confirming that the new site and its cells are visible, reachable, and manageable through centralized tools such as NetAct (confirming O and M connectivity is correctly established), verifying that all expected cells come into service without configuration errors, checking that no unexpected or unresolved alarms are present that would indicate an incomplete or faulty installation, and reviewing initial performance indicators (such as successful connection attempts and basic KPI reporting) to confirm the site is functioning as intended before it is accepted into normal operation.
Physical inspections of mounting hardware, cabling installation, and commercial/contractual matters fall outside the NOC's remote operational role and are handled by field engineering, construction, and commercial teams respectively.
NEW QUESTION # 22
Handover Success Rate is a KPI primarily used to assess which aspect of network performance?
Answer: B
Explanation:
Handover Success Rate measures the percentage of handover attempts - where a UE's connection is transferred from one cell to another, typically as the subscriber moves through the coverage area - that complete successfully without dropping the connection. This KPI falls under the Mobility category of performance management, which assesses how effectively the network maintains service continuity as users move, including intra-frequency, inter-frequency, and inter-RAT mobility procedures such as those involved in 4G-to-5G EN-DC configurations. Poor handover success rates can result from issues such as incorrect or missing neighbor relations, insufficient coverage overlap between cells, interference, or misconfigured handover thresholds and parameters. This KPI is unrelated to software version compliance (tracked through software inventory and management), backup file integrity (a software lifecycle concern), or NetAct license utilization (an administrative matter) - it is specifically a mobility indicator used to detect handover-related degradation affecting users in motion.
NEW QUESTION # 23
Which NetAct functional area provides tools that allow an operator to apply the same parameter change consistently to multiple AirScale base stations or cells in a single operation?
Answer: B
Explanation:
NetAct's Configuration Management (CM) area provides bulk/mass update capabilities that let an operator define a parameter change once - such as updating a neighbor relation, adjusting a power parameter, or enabling a feature - and apply it consistently across many base stations or cells in a single, auditable operation. This is fundamental to standard provisioning tasks covered in remote operations, allowing large- scale configuration rollouts without logging into each element individually, while maintaining consistency and an audit trail of who changed what and when. Fault Management focuses on collecting, displaying, and correlating alarms rather than making configuration changes. Performance Management focuses on collecting and reporting KPI/counter data. Software Management can distribute and activate software packages across multiple base stations, but it does not handle parameter and configuration provisioning, which is the specific domain of Configuration Management's bulk operations tools.
NEW QUESTION # 24
Before granting a new NOC engineer remote access credentials to production AirScale sites, what should be verified according to Nokia's operational security practices?
Answer: B
Explanation:
Before a new NOC engineer is granted credentials to access live production AirScale sites, operational security practice requires confirming the individual has completed the appropriate training for the tools, procedures, and risks involved, and that their account is provisioned with a role matching their actual job responsibilities, following the least-privilege principle of granting only the access necessary to perform assigned tasks. This minimizes the risk of accidental or unauthorized actions on a live network by inexperienced or over-privileged users. Owning a personal mobile phone or holding physical site keys relate to unrelated personal or facility-access matters and have no bearing on logical access provisioning for remote OAM systems. Granting unrestricted access to all NetAct modules by default directly contradicts least- privilege principles, increases organizational risk, and is explicitly the kind of practice operational security guidelines aim to prevent.
NEW QUESTION # 25
During a remote piloting session, what communication practice is most important for the NOC engineer and field engineer to follow to ensure tasks are completed safely and correctly?
Answer: A
Explanation:
Effective remote piloting depends on clear, step-by-step communication where each action - whether performed by the field engineer physically or the NOC engineer remotely - is confirmed as complete before the next dependent step proceeds. This sequential confirmation approach ensures that both parties maintain an accurate, shared understanding of the site's current state at every point in the procedure, which is critical for both safety (for example, confirming a cell is locked before physical work begins near an antenna) and technical correctness (for example, confirming a physical connection has been made before the NOC engineer attempts to verify it remotely). Providing all instructions upfront without ongoing confirmation risks steps being missed, performed out of order, or performed before prerequisite conditions are met. Relying solely on non-real-time communication such as email is impractical for time-sensitive coordination, and allowing the field engineer to proceed entirely independently removes the collaborative verification that makes remote piloting effective and safe.
NEW QUESTION # 26
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