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HP HPE7-A01 Bundle

Exam Code: HPE7-A01

Exam Name HPE Network Campus Access Professional

Certification Provider: HP

Corresponding Certification: HPE Aruba Networking Certified Professional - Campus Access

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HP HPE7-A01 Practice Test 78

Question 770

A switch team takes firmware backups but no configuration snapshot before a planned major change. Which ongoing operational safeguard best reduces the chance of recurrence?

  1. Require configuration backup integrity checks before risky maintenance.
  2. Enforce API token ownership and change-ticket correlation.
  3. Review monitored port identities after interface renumbering.
  4. Set CPU baselines and alert thresholds with documented escalation.

Explanation

Correct Answer

A:

This is a continuing control for the failure mode in which a software image alone does not reconstruct the previous running configuration. It complements the immediate fix instead of relying on a one-off correction.

Incorrect Answers

B:

That control is useful for a different failure, such as when an external automation script changes CX VLAN configuration but the operations team cannot trace when it happened. It would leave the present failure mode insufficiently addressed.

C:

That control is useful for a different failure, such as when an NAE agent is intended to alert on a growing interface discard counter but the monitored variable is the wrong physical port. It would leave the present failure mode insufficiently addressed.

D:

That control is useful for a different failure, such as when an engineer sees high CPU on an access switch but proposes rebooting it immediately during the school day. It would leave the present failure mode insufficiently addressed.

Question 771

Central shows a device with the wrong site tag, causing its client statistics to appear under another location. Which ongoing operational safeguard best reduces the chance of recurrence?

  1. Test loss-of-telemetry behavior in NOC alert reviews.
  2. Enforce API token ownership and change-ticket correlation.
  3. Audit site and group assignments after device swaps.
  4. Document capture points and data-handling approval before troubleshooting.

Explanation

Correct Answer

C:

This is a continuing control for the failure mode in which incorrect inventory metadata misgroups telemetry even when forwarding is healthy. It complements the immediate fix instead of relying on a one-off correction.

Incorrect Answers

A:

That control is useful for a different failure, such as when a monitoring dashboard hides real device outages because its poller assumes success on missing SNMP responses. It would leave the present failure mode insufficiently addressed.

B:

That control is useful for a different failure, such as when an external automation script changes CX VLAN configuration but the operations team cannot trace when it happened. It would leave the present failure mode insufficiently addressed.

D:

That control is useful for a different failure, such as when a packet capture taken only on a client endpoint cannot reveal which VLAN tags the upstream trunk adds to frames. It would leave the present failure mode insufficiently addressed.

Question 772

A campus operator enables verbose syslog locally but remote log storage shows no new events. Which ongoing operational safeguard best reduces the chance of recurrence?

  1. Set CPU baselines and alert thresholds with documented escalation.
  2. Test log forwarding and retention after configuration changes.
  3. Review monitored port identities after interface renumbering.
  4. Include Central connectivity in management VLAN migration acceptance.

Explanation

Correct Answer

B:

This is a continuing control for the failure mode in which local log generation does not ensure delivery to the remote collector. It complements the immediate fix instead of relying on a one-off correction.

Incorrect Answers

A:

That control is useful for a different failure, such as when an engineer sees high CPU on an access switch but proposes rebooting it immediately during the school day. It would leave the present failure mode insufficiently addressed.

C:

That control is useful for a different failure, such as when an NAE agent is intended to alert on a growing interface discard counter but the monitored variable is the wrong physical port. It would leave the present failure mode insufficiently addressed.

D:

That control is useful for a different failure, such as when a Central dashboard reports intermittent switch disconnections after device management moves to a new VLAN. It would leave the present failure mode insufficiently addressed.

Question 773

A monitoring API integration stops receiving data after a credential rotation despite healthy switch and WAN links. Which ongoing operational safeguard best reduces the chance of recurrence?

  1. Include Central connectivity in management VLAN migration acceptance.
  2. Review monitored port identities after interface renumbering.
  3. Use controlled credential rotation and pre-expiration alerts.
  4. Keep capture session scope, privacy and expiry in operational tickets.

Explanation

Correct Answer

C:

This is a continuing control for the failure mode in which application API authentication failed; physical data forwarding still works. It complements the immediate fix instead of relying on a one-off correction.

Incorrect Answers

A:

That control is useful for a different failure, such as when a Central dashboard reports intermittent switch disconnections after device management moves to a new VLAN. It would leave the present failure mode insufficiently addressed.

B:

That control is useful for a different failure, such as when an NAE agent is intended to alert on a growing interface discard counter but the monitored variable is the wrong physical port. It would leave the present failure mode insufficiently addressed.

D:

That control is useful for a different failure, such as when a NOC captures an uplink's traffic from the wrong mirror source port and misses the client authentication failure. It would leave the present failure mode insufficiently addressed.

Question 774

An engineer sees high CPU on an access switch but proposes rebooting it immediately during the school day. Which ongoing operational safeguard best reduces the chance of recurrence?

  1. Test loss-of-telemetry behavior in NOC alert reviews.
  2. Set CPU baselines and alert thresholds with documented escalation.
  3. Review monitored port identities after interface renumbering.
  4. Keep capture session scope, privacy and expiry in operational tickets.

Explanation

Correct Answer

B:

This is a continuing control for the failure mode in which high CPU alone does not identify its source or justify interrupting healthy traffic. It complements the immediate fix instead of relying on a one-off correction.

Incorrect Answers

A:

That control is useful for a different failure, such as when a monitoring dashboard hides real device outages because its poller assumes success on missing SNMP responses. It would leave the present failure mode insufficiently addressed.

C:

That control is useful for a different failure, such as when an NAE agent is intended to alert on a growing interface discard counter but the monitored variable is the wrong physical port. It would leave the present failure mode insufficiently addressed.

D:

That control is useful for a different failure, such as when a NOC captures an uplink's traffic from the wrong mirror source port and misses the client authentication failure. It would leave the present failure mode insufficiently addressed.

Question 775

A wired client reports no network access, and a technician wants to replace the core router before inspecting the local port. Which ongoing operational safeguard best reduces the chance of recurrence?

  1. Compare wired and wireless baseline tests during performance incidents.
  2. Require controlled redistribution and prefix-policy reviews.
  3. Keep per-VLAN external access regression tests.
  4. Use layer-by-layer triage starting at the failing endpoint.

Explanation

Correct Answer

D:

This is a continuing control for the failure mode in which the failure may originate at the access interface, where core replacement would not correct it. It complements the immediate fix instead of relying on a one-off correction.

Incorrect Answers

A:

That control is useful for a different failure, such as when a network administrator assumes a wireless slowdown is an ISP fault, but wired clients on the same WAN are fast. It would leave the present failure mode insufficiently addressed.

B:

That control is useful for a different failure, such as when two core switches disagree on an OSPF route after a configuration change, and one advertises a stale static prefix. It would leave the present failure mode insufficiently addressed.

C:

That control is useful for a different failure, such as when a campus VLAN can reach its gateway but cannot access an internet SaaS site although neighboring VLANs can. It would leave the present failure mode insufficiently addressed.

Question 776

Only one floor's wireless clients cannot reach DNS while other floors on the same SSID work. Which ongoing operational safeguard best reduces the chance of recurrence?

  1. Maintain healthy-floor baselines for rapid comparison.
  2. Monitor out-of-band management status distinct from forwarding health.
  3. Include EAP failure-stage codes in WLAN support workflows.
  4. Include error-rate checks in LAN incident intake.

Explanation

Correct Answer

A:

This is a continuing control for the failure mode in which the localized failure suggests a site-specific client subnet or uplink difference. It complements the immediate fix instead of relying on a one-off correction.

Incorrect Answers

B:

That control is useful for a different failure, such as when a switch appears unreachable from Central yet local console shows healthy data-plane operation. It would leave the present failure mode insufficiently addressed.

C:

That control is useful for a different failure, such as when an AP reports excellent RF signal but EAP-TLS clients fail to join after a certificate update. It would leave the present failure mode insufficiently addressed.

D:

That control is useful for a different failure, such as when a user has a valid IP address but intermittent access to a local service, and switch counters show CRC errors. It would leave the present failure mode insufficiently addressed.

Question 777

A user has a valid IP address but intermittent access to a local service, and switch counters show CRC errors. Which ongoing operational safeguard best reduces the chance of recurrence?

  1. Keep per-VLAN external access regression tests.
  2. Include error-rate checks in LAN incident intake.
  3. Use layer-by-layer triage starting at the failing endpoint.
  4. Use peer comparison when only one user is affected.

Explanation

Correct Answer

B:

This is a continuing control for the failure mode in which frame corruption can create sporadic loss despite correct Layer 3 settings. It complements the immediate fix instead of relying on a one-off correction.

Incorrect Answers

A:

That control is useful for a different failure, such as when a campus VLAN can reach its gateway but cannot access an internet SaaS site although neighboring VLANs can. It would leave the present failure mode insufficiently addressed.

C:

That control is useful for a different failure, such as when a wired client reports no network access, and a technician wants to replace the core router before inspecting the local port. It would leave the present failure mode insufficiently addressed.

D:

That control is useful for a different failure, such as when a single client cannot reach a printer even though other clients in the same VLAN succeed. It would leave the present failure mode insufficiently addressed.

Question 778

Several users lose connectivity after a DHCP renewal while clients with static addresses continue working. Which ongoing operational safeguard best reduces the chance of recurrence?

  1. Monitor DHCP server health and relay error counters.
  2. Compare wired and wireless baseline tests during performance incidents.
  3. Use peer comparison when only one user is affected.
  4. Require controlled redistribution and prefix-policy reviews.

Explanation

Correct Answer

A:

This is a continuing control for the failure mode in which the symptom localizes to address assignment or renewal rather than general switching failure. It complements the immediate fix instead of relying on a one-off correction.

Incorrect Answers

B:

That control is useful for a different failure, such as when a network administrator assumes a wireless slowdown is an ISP fault, but wired clients on the same WAN are fast. It would leave the present failure mode insufficiently addressed.

C:

That control is useful for a different failure, such as when a single client cannot reach a printer even though other clients in the same VLAN succeed. It would leave the present failure mode insufficiently addressed.

D:

That control is useful for a different failure, such as when two core switches disagree on an OSPF route after a configuration change, and one advertises a stale static prefix. It would leave the present failure mode insufficiently addressed.

Question 779

An AP reports excellent RF signal but EAP-TLS clients fail to join after a certificate update. Which ongoing operational safeguard best reduces the chance of recurrence?

  1. Monitor out-of-band management status distinct from forwarding health.
  2. Maintain healthy-floor baselines for rapid comparison.
  3. Require controlled redistribution and prefix-policy reviews.
  4. Include EAP failure-stage codes in WLAN support workflows.

Explanation

Correct Answer

D:

This is a continuing control for the failure mode in which authentication failure occurs after RF discovery; radio strength is not the limiting factor. It complements the immediate fix instead of relying on a one-off correction.

Incorrect Answers

A:

That control is useful for a different failure, such as when a switch appears unreachable from Central yet local console shows healthy data-plane operation. It would leave the present failure mode insufficiently addressed.

B:

That control is useful for a different failure, such as when only one floor's wireless clients cannot reach DNS while other floors on the same SSID work. It would leave the present failure mode insufficiently addressed.

C:

That control is useful for a different failure, such as when two core switches disagree on an OSPF route after a configuration change, and one advertises a stale static prefix. It would leave the present failure mode insufficiently addressed.

Question 780

A campus VLAN can reach its gateway but cannot access an internet SaaS site although neighboring VLANs can. Which ongoing operational safeguard best reduces the chance of recurrence?

  1. Use peer comparison when only one user is affected.
  2. Maintain versioned configuration snapshots, owner approval and rollback procedures.
  3. Compare wired and wireless baseline tests during performance incidents.
  4. Keep per-VLAN external access regression tests.

Explanation

Correct Answer

D:

This is a continuing control for the failure mode in which local gateway success does not verify downstream routed, policy or name-resolution service. It complements the immediate fix instead of relying on a one-off correction.

Incorrect Answers

A:

That control is useful for a different failure, such as when a single client cannot reach a printer even though other clients in the same VLAN succeed. It would leave the present failure mode insufficiently addressed.

B:

That control is useful for a different failure, such as when a campus deployment has repeated outages after hurried template changes, and the NOC has no versioned baseline for comparison. It would leave the present failure mode insufficiently addressed.

C:

That control is useful for a different failure, such as when a network administrator assumes a wireless slowdown is an ISP fault, but wired clients on the same WAN are fast. It would leave the present failure mode insufficiently addressed.