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HP HPE7-A01 Practice Test 77

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?

  1. Rely exclusively on a single point-in-time show command after an intermittent fault stops
  2. Use only core switch CPU data as a complete measurement of student Wi-Fi experience
  3. Conclude every failed login is caused by a wrong password without viewing server logs
  4. 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?

  1. Synchronize NTP and retain limited privacy-aware authentication logs
  2. Set event retention and time synchronization before the next incident
  3. Define an escalation path combining wired, WLAN and application teams
  4. 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?

  1. Use the supported authenticated REST API with read-only scope for inventory collection
  2. Deduplicate devices by authoritative serial and management identity
  3. Verify API credentials, user role, endpoint permissions and supported version
  4. 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?

  1. Review DNS, DHCP, WLAN association and application test outcomes from the sensor
  2. Compare alert sources and unique hardware identifiers for repeated events
  3. Increase errors in a safe lab test and inspect the agent's time-series graph and alert
  4. 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?

  1. Assume a green AP inventory icon guarantees every client application is reachable
  2. Disable all monitoring forever because one NAE agent is noisy
  3. Delete every duplicate-looking alarm without checking whether two physical switches share a hostname
  4. 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?

  1. Place sensors in representative user areas and review alert thresholds
  2. Establish a canonical asset key and monitor inventory reconciliation
  3. Use bounded thresholds and alert ownership to prevent floods
  4. 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?

  1. Verify API credentials, user role, endpoint permissions and supported version
  2. Review historical association, RF and switch event timelines around the reported period
  3. Review monitored metric, threshold and sampling interval against historical baseline
  4. 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?

  1. Compare AP/client logs, switch port changes and UXI results by timestamp
  2. Correlate session ID, RADIUS response and interface event for a sample login
  3. Increase errors in a safe lab test and inspect the agent's time-series graph and alert
  4. 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?

  1. Delete every duplicate-looking alarm without checking whether two physical switches share a hostname
  2. Rely exclusively on a single point-in-time show command after an intermittent fault stops
  3. Reboot the AP immediately without checking available historical evidence
  4. 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?

  1. Set event retention and time synchronization before the next incident
  2. Retain meaningful historical windows and monitor disk/resource limits
  3. Place sensors in representative user areas and review alert thresholds
  4. 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?

  1. Configure supported port mirroring to an authorized packet-capture destination
  2. Use supported configuration audit/events and NAE checkpoints where appropriate
  3. Deduplicate devices by authoritative serial and management identity
  4. 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

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