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| Section | Weight | Objectives |
|---|---|---|
| Performance Monitoring and Optimization | 20% | - Key performance indicators (KPIs)
|
| Network Configuration and Management | 25% | - Parameter management and configuration
|
| 5G RAN Architecture and Fundamentals | 20% | - Protocol stack and interfaces
|
| Security and Compliance | 10% | - Security features and procedures
|
| Fault Management and Troubleshooting | 25% | - Alarm and fault handling
|
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NEW QUESTION # 55
A NOC engineer needs to open an interactive command-line session directly to an AirScale BTS for advanced diagnostics. Which protocol should be used to comply with Nokia's secure remote access guidelines?
Answer: B
Explanation:
SSH (Secure Shell) is the protocol mandated for interactive command-line access to AirScale base stations because it encrypts the entire session, including login credentials, commands, and output, protecting it from interception as it traverses the wide-area transport network between the Operations Center and the remote site. Telnet transmits all data, including usernames and passwords, in plain text and is explicitly disallowed on production network elements due to the severe security risk. HTTP may be used for some web-based management interfaces but is not the standard for direct CLI diagnostic sessions, and plain HTTP itself is also insecure unless using HTTPS. SNMPv1 is an older management protocol used for polling status and traps, lacks strong authentication and encryption, and is not used for interactive shell sessions. Nokia's hardening guidelines for remote operations require encrypted management protocols such as SSH for all direct element access.
NEW QUESTION # 56
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 # 57
Within NetAct, which functional module is primarily responsible for planning, distributing, and activating software packages across base stations?
Answer: D
Explanation:
The Software Management (SWM) module within NetAct is the centralized functional area responsible for the end-to-end software lifecycle of base stations and other network elements, including planning software deployment campaigns, distributing (downloading) software packages to target network elements, scheduling and triggering activation, and monitoring the success or failure of these operations across potentially large numbers of sites. This is distinct from Fault Management (FM), which handles alarms and fault conditions; Performance Management (PM), which handles KPI and counter-based performance data; and Configuration Management (CM), which handles parameter and configuration provisioning. While these modules may interact - for example, a software activation might generate alarms visible in FM, or a software change might necessitate subsequent configuration adjustments via CM - the core responsibility for managing software packages, versions, and activation campaigns rests specifically with SWM, making it the primary tool a NOC engineer would use for software lifecycle activities.
NEW QUESTION # 58
A NOC team needs to apply an identical parameter change - updating a neighbor relation threshold - across
200 cells in a region. What NetAct CM capability is best suited to perform this efficiently and consistently?
Answer: A
Explanation:
NetAct's Bulk Configuration Management capability, often referred to as Mass Update, is specifically designed for scenarios where the same configuration change needs to be applied consistently across a large number of network elements or cells. Rather than requiring an engineer to manually access each cell individually - which would be slow, error-prone, and difficult to audit - Bulk CM allows the target parameter, new value, and the set of affected cells to be defined once, with the change then propagated and applied consistently across all selected targets, typically with built-in logging and the ability to verify success or failure per element. This significantly reduces the time required for large-scale changes and ensures consistency, which is particularly important for parameters like neighbor relation thresholds where inconsistent configuration across a cluster could create uneven mobility behavior. Software Management's delivery function addresses SW lifecycle, not parameter changes, and Fault Management is unrelated to configuration provisioning.
NEW QUESTION # 59
A NOC team uses NetAct to download a new software package to a group of base stations during business hours, but schedules the activation of that software for later that night. What is the primary operational benefit of this 'download now, activate later' approach?
Answer: C
Explanation:
Software lifecycle management for base stations typically separates the download (transfer) phase from the activation phase, because each has different operational implications. Downloading a software package involves transferring a potentially large file to the base station's storage, which consumes transport bandwidth and storage I/O but does not itself interrupt the cell's current operation, since the existing software load continues running unaffected. Activation, by contrast, involves switching to the new software load, which typically requires the affected unit to restart and briefly interrupts service. By downloading during business hours - when transport capacity may be more available and the activation step has not yet occurred - and scheduling activation for a low-traffic maintenance window, the NOC minimizes both the duration of any service interruption and its impact on subscribers. This separation does not eliminate the need for backups, nor does activation occur automatically; it is explicitly scheduled or triggered as a distinct step.
NEW QUESTION # 60
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