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Question 760
A school wants to monitor failed 802.1X access events and distinguish credential rejection from RADIUS timeout. Which assumption would be most misleading when investigating this situation?
- Rely exclusively on a single point-in-time show command after an intermittent fault stops
- Use only core switch CPU data as a complete measurement of student Wi-Fi experience
- Conclude every failed login is caused by a wrong password without viewing server logs
- Scrape a dashboard screenshot and treat it as a reliable live configuration API
Explanation
Correct Answer
C:Failures may originate from certificates, policy or transport. Combined events reveal which part of AAA failed.
Incorrect Answers
A:Transient errors may no longer be visible in one snapshot. By contrast, failures may originate from certificates, policy or transport.
B:Healthy switches cannot prove every app works at the edge. It would not resolve the documented symptom; failures may originate from certificates, policy or transport.
D:A picture can be stale and omits machine-readable structure. In this situation, failures may originate from certificates, policy or transport.
Question 761
A school wants to monitor failed 802.1X access events and distinguish credential rejection from RADIUS timeout. Which safeguard best reduces the deployment risk in this case?
- Synchronize NTP and retain limited privacy-aware authentication logs
- Set event retention and time synchronization before the next incident
- Define an escalation path combining wired, WLAN and application teams
- Pilot revised thresholds and document why the alert rule changed
Explanation
Correct Answer
A:Time consistency makes troubleshooting evidence trustworthy. Matching identifiers separate policy denial from unreachable services.
Incorrect Answers
B:Useful forensic history depends on preparation. The relevant technical distinction is that time consistency makes troubleshooting evidence trustworthy.
C:Cross-domain ownership avoids slow ticket handoffs. It would not resolve the documented symptom; time consistency makes troubleshooting evidence trustworthy.
D:Controlled tuning preserves a trusted monitoring baseline. By contrast, time consistency makes troubleshooting evidence trustworthy.
Question 762
A network engineer receives duplicate device alarms after merging two campus inventory systems. What is the most appropriate first technical change?
- Use the supported authenticated REST API with read-only scope for inventory collection
- Deduplicate devices by authoritative serial and management identity
- Verify API credentials, user role, endpoint permissions and supported version
- Use supported configuration audit/events and NAE checkpoints where appropriate
Explanation
Correct Answer
B:One physical switch should not appear as independent incidents in two systems. Source correlation distinguishes duplication from real second failures.
Incorrect Answers
A:Structured state retrieval can reduce manual transcription errors. By contrast, one physical switch should not appear as independent incidents in two systems.
C:REST access depends on authentication and authorization independent of network ping. Here, however, one physical switch should not appear as independent incidents in two systems.
D:Configuration history can link a new symptom to a recent change. The relevant technical distinction is that one physical switch should not appear as independent incidents in two systems.
Question 763
A network engineer receives duplicate device alarms after merging two campus inventory systems. Which observation would best verify that the intended behavior is working?
- Review DNS, DHCP, WLAN association and application test outcomes from the sensor
- Compare alert sources and unique hardware identifiers for repeated events
- Increase errors in a safe lab test and inspect the agent's time-series graph and alert
- Check a UXI or test-client workflow from association through app response
Explanation
Correct Answer
B:Source correlation distinguishes duplication from real second failures. One physical switch should not appear as independent incidents in two systems.
Incorrect Answers
A:Service-level tests reveal failures missed by infrastructure-up status. The relevant technical distinction is that source correlation distinguishes duplication from real second failures.
C:A configured script must actually create the expected monitored event. In this situation, source correlation distinguishes duplication from real second failures.
D:End-to-end measurement locates the failure beyond AP status. Here, however, source correlation distinguishes duplication from real second failures.
Question 764
A network engineer receives duplicate device alarms after merging two campus inventory systems. Which belief about the configuration should the team reject?
- Assume a green AP inventory icon guarantees every client application is reachable
- Disable all monitoring forever because one NAE agent is noisy
- Delete every duplicate-looking alarm without checking whether two physical switches share a hostname
- Reboot the AP immediately without checking available historical evidence
Explanation
Correct Answer
C:Names alone do not guarantee device identity. One physical switch should not appear as independent incidents in two systems.
Incorrect Answers
A:Control connectivity is different from user data service. It would not resolve the documented symptom; names alone do not guarantee device identity.
B:A tuning problem does not justify losing operational visibility. In this situation, names alone do not guarantee device identity.
D:A reboot can erase the transient state under investigation. Here, however, names alone do not guarantee device identity.
Question 765
A network engineer receives duplicate device alarms after merging two campus inventory systems. What should be included in the rollout plan to limit a foreseeable failure?
- Place sensors in representative user areas and review alert thresholds
- Establish a canonical asset key and monitor inventory reconciliation
- Use bounded thresholds and alert ownership to prevent floods
- Define an escalation path combining wired, WLAN and application teams
Explanation
Correct Answer
B:Stable identity reduces future duplicate incidents. Source correlation distinguishes duplication from real second failures.
Incorrect Answers
A:A sensor in a quiet closet may not reflect classrooms. In this situation, stable identity reduces future duplicate incidents.
C:Overly chatty monitoring can hide important incidents. By contrast, stable identity reduces future duplicate incidents.
D:Cross-domain ownership avoids slow ticket handoffs. It would not resolve the documented symptom; stable identity reduces future duplicate incidents.
Question 766
A central management console cannot explain a one-minute wireless outage reported earlier in the day. What should the network engineer do to address this requirement?
- Verify API credentials, user role, endpoint permissions and supported version
- Review historical association, RF and switch event timelines around the reported period
- Review monitored metric, threshold and sampling interval against historical baseline
- Collect access switch and RADIUS authentication events with consistent timestamps
Explanation
Correct Answer
B:Time-aligned data can reveal an event already recovered. Correlation separates radio loss from wired or application impact.
Incorrect Answers
A:REST access depends on authentication and authorization independent of network ping. By contrast, time-aligned data can reveal an event already recovered.
C:Poorly tuned conditions can create false-positive alerting. It would not resolve the documented symptom; time-aligned data can reveal an event already recovered.
D:Combined events reveal which part of AAA failed. The relevant technical distinction is that time-aligned data can reveal an event already recovered.
Question 767
A central management console cannot explain a one-minute wireless outage reported earlier in the day. What should the team inspect to confirm the result?
- Compare AP/client logs, switch port changes and UXI results by timestamp
- Correlate session ID, RADIUS response and interface event for a sample login
- Increase errors in a safe lab test and inspect the agent's time-series graph and alert
- Review DNS, DHCP, WLAN association and application test outcomes from the sensor
Explanation
Correct Answer
A:Correlation separates radio loss from wired or application impact. Time-aligned data can reveal an event already recovered.
Incorrect Answers
B:Matching identifiers separate policy denial from unreachable services. Here, however, correlation separates radio loss from wired or application impact.
C:A configured script must actually create the expected monitored event. By contrast, correlation separates radio loss from wired or application impact.
D:Service-level tests reveal failures missed by infrastructure-up status. The relevant technical distinction is that correlation separates radio loss from wired or application impact.
Question 768
A central management console cannot explain a one-minute wireless outage reported earlier in the day. Which misconception is most likely to obstruct a correct fix?
- Delete every duplicate-looking alarm without checking whether two physical switches share a hostname
- Rely exclusively on a single point-in-time show command after an intermittent fault stops
- Reboot the AP immediately without checking available historical evidence
- Assume a green AP inventory icon guarantees every client application is reachable
Explanation
Correct Answer
C:A reboot can erase the transient state under investigation. Time-aligned data can reveal an event already recovered.
Incorrect Answers
A:Names alone do not guarantee device identity. Here, however, a reboot can erase the transient state under investigation.
B:Transient errors may no longer be visible in one snapshot. In this situation, a reboot can erase the transient state under investigation.
D:Control connectivity is different from user data service. The relevant technical distinction is that a reboot can erase the transient state under investigation.
Question 769
A central management console cannot explain a one-minute wireless outage reported earlier in the day. What precaution is most important before the change is expanded?
- Set event retention and time synchronization before the next incident
- Retain meaningful historical windows and monitor disk/resource limits
- Place sensors in representative user areas and review alert thresholds
- Pilot revised thresholds and document why the alert rule changed
Explanation
Correct Answer
A:Useful forensic history depends on preparation. Correlation separates radio loss from wired or application impact.
Incorrect Answers
B:Monitoring must not consume unreasonable switch resources. In this situation, useful forensic history depends on preparation.
C:A sensor in a quiet closet may not reflect classrooms. Here, however, useful forensic history depends on preparation.
D:Controlled tuning preserves a trusted monitoring baseline. It would not resolve the documented symptom; useful forensic history depends on preparation.
Question 770
A campus team wants to detect unexpected configuration changes on access switches. Which configuration decision most directly resolves the situation?
- Configure supported port mirroring to an authorized packet-capture destination
- Use supported configuration audit/events and NAE checkpoints where appropriate
- Deduplicate devices by authoritative serial and management identity
- Verify API credentials, user role, endpoint permissions and supported version
Explanation
Correct Answer
B:Configuration history can link a new symptom to a recent change. A diff establishes the actual altered setting.
Incorrect Answers
A:Mirroring provides traffic evidence while the production link remains active. In this situation, configuration history can link a new symptom to a recent change.
C:One physical switch should not appear as independent incidents in two systems. By contrast, configuration history can link a new symptom to a recent change.
D:REST access depends on authentication and authorization independent of network ping. It would not resolve the documented symptom; configuration history can link a new symptom to a recent change.
HPE Network Campus Access Professional (HPE7-A01) Practice Tests