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| Section | Objectives |
|---|---|
| Configuration Management | - Parameter Administration
|
| Fault and Alarm Management | - Monitoring and Troubleshooting
|
| Remote Operations of 5G Radio Access Networks | - 5G RAN Operations Center Procedures
|
| Software Management | - Base Station Software Operations
|
| 5G RAN Products and Solutions Management | - Network Connectivity and Access
|
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NEW QUESTION # 21
A specific neighbor relation between Cell A and Cell B shows a consistently low handover success rate, while overall network-wide mobility KPIs remain healthy. What is the most appropriate first troubleshooting step?
Answer: A
Explanation:
Because the issue is isolated to a single neighbor relation rather than affecting overall network mobility, the problem is most likely localized to the configuration between these two specific cells rather than a broader hardware, transport, or core network fault - which would typically affect multiple relations or KPIs more broadly. The appropriate first step is to review the neighbor relation configuration, including parameters such as handover thresholds, measurement gap settings, frequency relations, and Automatic Neighbor Relation (ANR) data, to confirm the relation is correctly defined and that measurement configurations align with actual RF conditions between the two cells. Misconfigured handover thresholds, missing or incorrect frequency information, or an outdated neighbor list entry are common causes of localized handover failures.
Restarting hardware, rebooting core elements, or adjusting power network-wide are disproportionate actions that risk impacting unrelated cells and do not target the specific, isolated nature of the reported problem.
NEW QUESTION # 22
What is the purpose of license management functionality within NetAct as it relates to base station software and features?
Answer: C
Explanation:
License management within NetAct provides centralized tracking and administration of license keys and entitlements that govern which optional features, capacity thresholds, or performance levels are enabled on individual network elements. Because software capability and commercial licensing are often separated - meaning a base station may have software installed that is technically capable of supporting a feature, but the feature remains inactive until the corresponding license is applied - license management ensures that the correct entitlements are deployed, tracked for expiration or renewal, and can be audited across the network.
This is important for NOC teams when troubleshooting why an expected feature is not functioning, as a missing or expired license is a common cause distinct from a software or configuration fault. License management has no role in tracking physical spare parts inventory, PLMN ID assignment (a configuration management function), or scheduling site maintenance visits, all of which are handled through separate processes.
NEW QUESTION # 23
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?
Answer: D
Explanation:
For complex, multi-step remote piloting activities with potential service impact, using a shared communication channel - such as a bridge call or a logged chat/messaging channel - where each step, its confirmation, and its result are recorded in real time provides significant benefits. It creates a contemporaneous record of exactly what was instructed, performed, and confirmed at each stage, which supports accountability (clarifying who performed or authorized each action) and provides an accurate timeline that can be referenced if an issue arises during or after the activity, or if the activity needs to be reviewed afterward for process improvement. This is in addition to, not a replacement for, the final documentation in the maintenance ticket. Avoiding real-time communication would undermine the collaborative coordination that complex activities require; anonymous channels would defeat the accountability purpose; and performing steps simultaneously without sequencing would be unsafe and likely to cause errors, particularly where later steps depend on the successful completion of earlier ones.
NEW QUESTION # 24
When planning the channel bandwidth and subcarrier spacing for a 5G cell, what is the primary operational impact of these parameters?
Answer: A
Explanation:
Channel bandwidth and subcarrier spacing are fundamental radio configuration parameters that together determine how many Physical Resource Blocks (PRBs) are available within a cell's carrier. Since PRBs are the basic units of radio resource that the scheduler allocates to UEs for both downlink and uplink transmissions, the number of available PRBs directly determines the cell's theoretical capacity - that is, how much traffic the cell can serve simultaneously before becoming congested. A wider channel bandwidth provides more PRBs and therefore greater capacity, while subcarrier spacing affects the size of each PRB in the frequency domain and has implications for latency and mobility performance at different frequency ranges. These parameters are foundational to capacity planning and must be configured consistently with the operator's spectrum holdings and regulatory allocations. They have no bearing on PLMN/TAC identifiers, alarm severity configuration, or O and M transport security, which are governed by entirely separate configuration domains.
NEW QUESTION # 25
Which statement correctly distinguishes 'Integrity' KPIs from 'Accessibility' KPIs in RAN performance management?
Answer: D
Explanation:
Accessibility KPIs measure how successfully a UE can initially establish a connection or session when it attempts to do so - for example, RRC Connection Setup Success Rate. Integrity KPIs, by contrast, measure the quality and performance of a connection once it has been successfully established - for example, achievable throughput, latency, or error rates during an active session. These represent two distinct stages of user experience: first, can the user connect at all (Accessibility), and second, once connected, how good is the service (Integrity)? They are not the same category measured differently, since they address fundamentally different performance aspects and often require different troubleshooting approaches - accessibility issues often relate to admission and signaling procedures, while integrity issues often relate to radio conditions, interference, or capacity affecting data transfer. Integrity KPIs apply across all radio generations including
5G, and Accessibility is not limited solely to throughput.
NEW QUESTION # 26
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