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Question 390
A multi-floor office sees clients connect to distant APs despite strong nearby cells. What should be included in the rollout plan to limit a foreseeable failure?
- Trial modest RF and steering changes on a floor subset
- Reduce cell power carefully and test handheld uplink in the furthest aisles
- Isolate legacy devices and plan replacement rather than weakening every user's security
- Keep a temporary approved support path and test portal load at event scale
Explanation
Correct Answer
A:Broad forced changes can interrupt otherwise healthy devices. Actual client association choices reveal why users remain on distant APs.
Incorrect Answers
B:Over-large cells can create sticky client behavior. It would not resolve the documented symptom; broad forced changes can interrupt otherwise healthy devices.
C:Narrow exceptions contain the risk of older equipment. By contrast, broad forced changes can interrupt otherwise healthy devices.
D:Login services can become bottlenecks under simultaneous arrivals. In this situation, broad forced changes can interrupt otherwise healthy devices.
Question 391
A sports arena requires high capacity for spectators during an event with thousands of phones. What should the network engineer do to address this requirement?
- Use RF spectrum analysis to identify non-802.11 interference and change placement/channel as appropriate
- Design appropriate SSID/security policies for supported client generations
- Review DFS event history and plan alternate legal channels for the affected location
- Design directional cells, channel reuse and sufficient AP capacity from realistic client-density targets
Explanation
Correct Answer
D:Audience capacity depends on airtime and geometry, not AP count alone. Per-sector utilization reveals unbalanced distribution.
Incorrect Answers
A:A conventional Wi-Fi scan may not identify the source of non-Wi-Fi energy. The relevant technical distinction is that audience capacity depends on airtime and geometry, not AP count alone.
B:Strong controls must be compatible with actual authenticated device types. It would not resolve the documented symptom; audience capacity depends on airtime and geometry, not AP count alone.
C:Radar-detection requirements can force channel changes even when a radio is healthy. By contrast, audience capacity depends on airtime and geometry, not AP count alone.
Question 392
A sports arena requires high capacity for spectators during an event with thousands of phones. What should the team inspect to confirm the result?
- Load-test representative traffic and inspect busy-channel time per sector
- Check client radio capability, country code and visible supported channels
- Review band changes, rejected associations and application interruption by device type
- Capture client roam events, authentication timing and application disruption across AP boundaries
Explanation
Correct Answer
A:Per-sector utilization reveals unbalanced distribution. Audience capacity depends on airtime and geometry, not AP count alone.
Incorrect Answers
B:Band availability must be confirmed on both infrastructure and client. The relevant technical distinction is that per-sector utilization reveals unbalanced distribution.
C:Roam and association records expose oscillation. By contrast, per-sector utilization reveals unbalanced distribution.
D:A seamless SSID display does not prove low-latency reassociation. Here, however, per-sector utilization reveals unbalanced distribution.
Question 393
A sports arena requires high capacity for spectators during an event with thousands of phones. Which misconception is most likely to obstruct a correct fix?
- Give every AP a different SSID and expect clients to roam as one WLAN
- Increase one central AP to maximum power and expect it to serve the entire venue
- Treat an empty neighbor-SSID list as evidence the band is free of interference
- Boost transmit power to fix a client VLAN that is absent from the AP trunk
Explanation
Correct Answer
B:A huge cell concentrates contention and does not increase total available airtime. Audience capacity depends on airtime and geometry, not AP count alone.
Incorrect Answers
A:Separate SSIDs can force full new network selection and authentication. In this situation, a huge cell concentrates contention and does not increase total available airtime.
C:Non-Wi-Fi devices may occupy the spectrum without broadcasting SSIDs. The relevant technical distinction is that a huge cell concentrates contention and does not increase total available airtime.
D:Radio changes cannot create a missing wired VLAN. Here, however, a huge cell concentrates contention and does not increase total available airtime.
Question 394
A sports arena requires high capacity for spectators during an event with thousands of phones. What precaution is most important before the change is expanded?
- Phase the migration and give legacy scanners limited network roles
- Prefer measured RF planning and revisit channels at peak public usage
- Validate the plan with event-like bodies, devices and traffic mixes
- Pilot settings on each scanner firmware generation before site-wide rollout
Explanation
Correct Answer
C:Occupants themselves change attenuation and contention. Per-sector utilization reveals unbalanced distribution.
Incorrect Answers
A:Compatibility should not become broad unsecured connectivity. In this situation, occupants themselves change attenuation and contention.
B:Neighbor networks may change their channel choices. It would not resolve the documented symptom; occupants themselves change attenuation and contention.
D:Mixed client capabilities require staged validation. Here, however, occupants themselves change attenuation and contention.
Question 395
A warehouse uses directional antennas on APs but inventory clients disconnect at aisle intersections. Which configuration decision most directly resolves the situation?
- Design measured overlap and compatible WLAN security across the indoor-outdoor boundary
- Review client steering, transmit power and minimum-rate thresholds that influence roaming
- Review antenna pattern, orientation and overlap along the scanner's travel path
- Review DFS event history and plan alternate legal channels for the affected location
Explanation
Correct Answer
C:Directional lobes can create seams outside the intended aisle. Moving clients expose gaps hidden by static tests.
Incorrect Answers
A:Clients need sufficient overlapping coverage to hand off without long outages. It would not resolve the documented symptom; directional lobes can create seams outside the intended aisle.
B:Sticky associations are partly client-controlled and affected by cell shape. By contrast, directional lobes can create seams outside the intended aisle.
D:Radar-detection requirements can force channel changes even when a radio is healthy. In this situation, directional lobes can create seams outside the intended aisle.
Question 396
A warehouse uses directional antennas on APs but inventory clients disconnect at aisle intersections. Which check most directly demonstrates the desired network behavior?
- Compare association failures and negotiated cipher/authentication mode by client type
- Map SNR and roam events through aisle intersections rather than at fixed stock positions
- Trace one client in each mode through its VLAN/role and actual gateway or bridge path
- Compare busy-channel time, retries and per-client throughput during a full-class test
Explanation
Correct Answer
B:Moving clients expose gaps hidden by static tests. Directional lobes can create seams outside the intended aisle.
Incorrect Answers
A:Handshake details reveal protocol incompatibility. By contrast, moving clients expose gaps hidden by static tests.
C:The data path must match the configured forwarding choice. The relevant technical distinction is that moving clients expose gaps hidden by static tests.
D:Application performance and airtime show the source of congestion. It would not resolve the documented symptom; moving clients expose gaps hidden by static tests.
Question 397
A warehouse uses directional antennas on APs but inventory clients disconnect at aisle intersections. Which assumption would be most misleading when investigating this situation?
- Assume identical SSID display names prove every AP shares the same security configuration
- Assume a different SSID automatically gives complete east-west traffic isolation
- Treat antenna gain as an omnidirectional increase in coverage
- Assume controllers can force every client to choose the numerically strongest AP at all times
Explanation
Correct Answer
C:Directional gain redistributes energy rather than adding equal signal everywhere. Directional lobes can create seams outside the intended aisle.
Incorrect Answers
A:SSID names do not convey cipher and EAP settings. The relevant technical distinction is that directional gain redistributes energy rather than adding equal signal everywhere.
B:SSIDs alone do not enforce the required security rules. By contrast, directional gain redistributes energy rather than adding equal signal everywhere.
D:Final client roaming behavior varies by driver and standard support. Here, however, directional gain redistributes energy rather than adding equal signal everywhere.
Question 398
A warehouse uses directional antennas on APs but inventory clients disconnect at aisle intersections. Which safeguard best reduces the deployment risk in this case?
- Validate client channel support and local regulatory constraints before expansion
- Test handheld devices at the actual mounting and carrying orientation
- Check seasonal crowding and roaming failure before enabling production dependency
- Apply bounded power ranges and stage changes during realistic occupancy
Explanation
Correct Answer
B:Human bodies and device posture affect RF performance. Moving clients expose gaps hidden by static tests.
Incorrect Answers
A:Channel planning must work for all permitted radios and regions. The relevant technical distinction is that human bodies and device posture affect RF performance.
C:Outdoor service conditions can vary across weather and occupancy. In this situation, human bodies and device posture affect RF performance.
D:Large automatic adjustments can destabilize ongoing sessions. Here, however, human bodies and device posture affect RF performance.
Question 399
A student WLAN has high RSSI but IP phones suffer jitter when large file uploads run. What is the most appropriate first technical change?
- Apply supported airtime and WMM/QoS handling to protect time-sensitive voice traffic
- Identify interference and noise sources rather than relying on raw signal power
- Map guest SSID to a segregated policy role and approved forwarding/egress segment
- Maintain a consistent authorized WLAN and evaluate supported roaming/key caching features
Explanation
Correct Answer
A:Radio prioritization can reduce latency under competing WLAN load. The application outcome must improve without blocking required data.
Incorrect Answers
B:RSSI measures received power, while noise determines usable signal quality. Here, however, radio prioritization can reduce latency under competing WLAN load.
C:Different trust levels require real forwarding isolation, not just a label. In this situation, radio prioritization can reduce latency under competing WLAN load.
D:Roaming should retain a compatible security context as clients move. It would not resolve the documented symptom; radio prioritization can reduce latency under competing WLAN load.
Question 400
A student WLAN has high RSSI but IP phones suffer jitter when large file uploads run. Which THREE steps together deliver the change, verify its effect, and reduce rollout risk? Choose THREE.
- Test both upload and download contention before campus-wide tuning
- Apply supported airtime and WMM/QoS handling to protect time-sensitive voice traffic
- Select supported client forwarding modes based on security, latency and segmentation requirements
- Compare voice jitter, WMM queue counters and channel utilization during uploads
- Tune RF management limits and channel strategy based on measured neighboring cells
- Coordinate with facilities before relocating or retuning the interfering equipment
Explanation
Correct Answers
A:Only one traffic direction may reveal queue starvation. The application outcome must improve without blocking required data.
B:Radio prioritization can reduce latency under competing WLAN load. The application outcome must improve without blocking required data.
D:The application outcome must improve without blocking required data. Radio prioritization can reduce latency under competing WLAN load.
Incorrect Answers
C:Centralized and local forwarding have different path and policy dependencies. By contrast, radio prioritization can reduce latency under competing WLAN load.
E:Automatic tuning still needs guardrails for a dense deployment. In this situation, radio prioritization can reduce latency under competing WLAN load.
F:Removing a source can affect other operational systems. It would not resolve the documented symptom; only one traffic direction may reveal queue starvation.
HPE Network Campus Access Professional (HPE7-A01) Practice Tests