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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 17

Question 160

A campus AAA deployment has two RADIUS servers, but requests continue timing out because both hostnames resolve to the same failed address. Which immediate engineering change most directly addresses this issue?

  1. Correct AAA server resolution or target definitions to use genuinely independent reachable endpoints.
  2. Update authorization policy to classify contractors from trusted identity attributes.
  3. Synchronize the approved AAA attribute interpretation and switch access policy across both sites.
  4. Use supported reauthentication, session controls and revocation handling to terminate unauthorized access promptly.

Explanation

Correct Answer

A:

The underlying issue is that configured redundancy is illusory when both server entries point to one unavailable destination. This intervention addresses that cause directly. A useful result to confirm is: after one server failure authentication continues through the surviving distinct endpoint.

Incorrect Answers

B:

This is suited to a different condition, such as when a contractor is in the approved directory group but receives employee network privileges because role mapping ignores the account's contractor attribute. The reported fault instead arises because configured redundancy is illusory when both server entries point to one unavailable destination.

C:

This is suited to a different condition, such as when a user moves between wired campus locations and receives inconsistent roles because one access switch uses an older enforcement dictionary. The reported fault instead arises because configured redundancy is illusory when both server entries point to one unavailable destination.

D:

This is suited to a different condition, such as when a corporate certificate was revoked, yet a connected endpoint retains network access indefinitely because no session reauthentication or revocation response occurs. The reported fault instead arises because configured redundancy is illusory when both server entries point to one unavailable destination.

Question 161

A user moves between wired campus locations and receives inconsistent roles because one access switch uses an older enforcement dictionary. Which immediate engineering change most directly addresses this issue?

  1. Reorder or refine the service matching rules so the proper EAP-TLS service handles the request.
  2. Check authentication exchange and supplicant trust status before changing VLAN authorization.
  3. Synchronize the approved AAA attribute interpretation and switch access policy across both sites.
  4. Restrict the unauthenticated or failure role and map authorized clients through the approved AAA result.

Explanation

Correct Answer

C:

The underlying issue is that different enforcement versions interpret the same identity or role attributes inconsistently. This intervention addresses that cause directly. A useful result to confirm is: the same user receives the intended role and service permissions at both sites.

Incorrect Answers

A:

This is suited to a different condition, such as when a ClearPass service selects the wrong authentication source because a generic catch-all service rule matches before the intended EAP-TLS policy. The reported fault instead arises because different enforcement versions interpret the same identity or role attributes inconsistently.

B:

This is suited to a different condition, such as when a switch shows an EAP failure but engineers alter the user's VLAN before confirming whether the supplicant completed authentication. The reported fault instead arises because different enforcement versions interpret the same identity or role attributes inconsistently.

D:

This is suited to a different condition, such as when an access switch performs 802.1X on user ports, but unauthenticated clients are placed into production VLAN by an incorrect fallback policy. The reported fault instead arises because different enforcement versions interpret the same identity or role attributes inconsistently.

Question 162

A switch shows an EAP failure but engineers alter the user's VLAN before confirming whether the supplicant completed authentication. Which immediate engineering change most directly addresses this issue?

  1. Define a documented outage role with the minimum necessary service and use trusted AAA redundancy.
  2. Check authentication exchange and supplicant trust status before changing VLAN authorization.
  3. Apply supported multi-domain or per-client authorization separating the voice and data devices.
  4. Deploy the managed certificate profile before requiring enterprise EAP-TLS admission.

Explanation

Correct Answer

B:

The underlying issue is that the client has not reached the authorization stage, so VLAN policy is premature. This intervention addresses that cause directly. A useful result to confirm is: a validated client completes EAP and is then assigned the documented VLAN or role.

Incorrect Answers

A:

This is suited to a different condition, such as when a remote warehouse has intermittent RADIUS reachability, and the team plans to fail open every corporate user port to restore continuity. The reported fault instead arises because the client has not reached the authorization stage, so VLAN policy is premature.

C:

This is suited to a different condition, such as when a wired port with both a phone and workstation grants employee access to the phone's unauthenticated identity. The reported fault instead arises because the client has not reached the authorization stage, so VLAN policy is premature.

D:

This is suited to a different condition, such as when a corporate EAP-TLS enrollment works for most laptops but newly issued devices lack the required client certificate. The reported fault instead arises because the client has not reached the authorization stage, so VLAN policy is premature.

Question 163

A NOC captures an uplink's traffic from the wrong mirror source port and misses the client authentication failure. Which immediate engineering change most directly addresses this issue?

  1. Correct the device inventory or site assignment without changing unrelated network behavior.
  2. Configure port mirroring with the actual source interface, traffic direction and capture destination.
  3. Set proper poller timeout and explicit unknown/down status handling rather than treating silence as health.
  4. Use authenticated API calls with individual service identities and change/audit logging.

Explanation

Correct Answer

B:

The underlying issue is that the mirror session observes unrelated traffic rather than the flow under investigation. This intervention addresses that cause directly. A useful result to confirm is: a capture includes the expected client EAP or RADIUS exchanges without interrupting forwarding.

Incorrect Answers

A:

This is suited to a different condition, such as when Central shows a device with the wrong site tag, causing its client statistics to appear under another location. The reported fault instead arises because the mirror session observes unrelated traffic rather than the flow under investigation.

C:

This is suited to a different condition, such as when a monitoring dashboard hides real device outages because its poller assumes success on missing SNMP responses. The reported fault instead arises because the mirror session observes unrelated traffic rather than the flow under investigation.

D:

This is suited to a different condition, such as when an external automation script changes CX VLAN configuration but the operations team cannot trace when it happened. The reported fault instead arises because the mirror session observes unrelated traffic rather than the flow under investigation.

Question 164

A packet capture taken only on a client endpoint cannot reveal which VLAN tags the upstream trunk adds to frames. Which immediate engineering change most directly addresses this issue?

  1. Collect a properly authorized capture at the trunk or monitor port where tagging is visible.
  2. Correct the NAE script or agent watch expression to target the affected interface statistic.
  3. Configure a reachable remote syslog destination and supported severity/facility forwarding settings.
  4. Use authenticated API calls with individual service identities and change/audit logging.

Explanation

Correct Answer

A:

The underlying issue is that the endpoint capture point sees already-decapsulated traffic rather than the trunk's 802.1Q headers. This intervention addresses that cause directly. A useful result to confirm is: observed frame tags match the expected client VLAN assignment on the switch uplink.

Incorrect Answers

B:

This is suited to a different condition, 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. The reported fault instead arises because the endpoint capture point sees already-decapsulated traffic rather than the trunk's 802.1Q headers.

C:

This is suited to a different condition, such as when a campus operator enables verbose syslog locally but remote log storage shows no new events. The reported fault instead arises because the endpoint capture point sees already-decapsulated traffic rather than the trunk's 802.1Q headers.

D:

This is suited to a different condition, such as when an external automation script changes CX VLAN configuration but the operations team cannot trace when it happened. The reported fault instead arises because the endpoint capture point sees already-decapsulated traffic rather than the trunk's 802.1Q headers.

Question 165

An NAE agent is intended to alert on a growing interface discard counter but the monitored variable is the wrong physical port. Which immediate engineering change most directly addresses this issue?

  1. Update Central management reachability and monitoring source expectations for the new management path.
  2. Correct the NAE script or agent watch expression to target the affected interface statistic.
  3. Configure port mirroring with the actual source interface, traffic direction and capture destination.
  4. Investigate the end-to-end user experience path including DNS, authentication and application response.

Explanation

Correct Answer

B:

The underlying issue is that the telemetry rule watches a valid counter on an unrelated port, hiding the actual fault. This intervention addresses that cause directly. A useful result to confirm is: a controlled rise on the intended port triggers the expected NAE alert.

Incorrect Answers

A:

This is suited to a different condition, such as when a Central dashboard reports intermittent switch disconnections after device management moves to a new VLAN. The reported fault instead arises because the telemetry rule watches a valid counter on an unrelated port, hiding the actual fault.

C:

This is suited to a different condition, such as when a NOC captures an uplink's traffic from the wrong mirror source port and misses the client authentication failure. The reported fault instead arises because the telemetry rule watches a valid counter on an unrelated port, hiding the actual fault.

D:

This is suited to a different condition, such as when UXI sensors show failed cloud-application transactions but the WLAN dashboard reports healthy client associations. The reported fault instead arises because the telemetry rule watches a valid counter on an unrelated port, hiding the actual fault.

Question 166

UXI sensors show failed cloud-application transactions but the WLAN dashboard reports healthy client associations. Which immediate engineering change most directly addresses this issue?

  1. Investigate the end-to-end user experience path including DNS, authentication and application response.
  2. Configure port mirroring with the actual source interface, traffic direction and capture destination.
  3. Set proper poller timeout and explicit unknown/down status handling rather than treating silence as health.
  4. Collect a properly authorized capture at the trunk or monitor port where tagging is visible.

Explanation

Correct Answer

A:

The underlying issue is that association health does not guarantee service-level performance or application success. This intervention addresses that cause directly. A useful result to confirm is: UXI synthetic transactions complete within the defined performance target while association remains stable.

Incorrect Answers

B:

This is suited to a different condition, such as when a NOC captures an uplink's traffic from the wrong mirror source port and misses the client authentication failure. The reported fault instead arises because association health does not guarantee service-level performance or application success.

C:

This is suited to a different condition, such as when a monitoring dashboard hides real device outages because its poller assumes success on missing SNMP responses. The reported fault instead arises because association health does not guarantee service-level performance or application success.

D:

This is suited to a different condition, such as when a packet capture taken only on a client endpoint cannot reveal which VLAN tags the upstream trunk adds to frames. The reported fault instead arises because association health does not guarantee service-level performance or application success.

Question 167

A Central dashboard reports intermittent switch disconnections after device management moves to a new VLAN. Which immediate engineering change most directly addresses this issue?

  1. Update Central management reachability and monitoring source expectations for the new management path.
  2. Collect a properly authorized capture at the trunk or monitor port where tagging is visible.
  3. Correlate process or control-plane metrics with traffic and event logs before choosing a maintenance action.
  4. Correct the NAE script or agent watch expression to target the affected interface statistic.

Explanation

Correct Answer

A:

The underlying issue is that the management plane's outbound route or firewall policy was not migrated with the VLAN change. This intervention addresses that cause directly. A useful result to confirm is: Central reconnects consistently and telemetry updates at the expected interval.

Incorrect Answers

B:

This is suited to a different condition, such as when a packet capture taken only on a client endpoint cannot reveal which VLAN tags the upstream trunk adds to frames. The reported fault instead arises because the management plane's outbound route or firewall policy was not migrated with the VLAN change.

C:

This is suited to a different condition, such as when an engineer sees high CPU on an access switch but proposes rebooting it immediately during the school day. The reported fault instead arises because the management plane's outbound route or firewall policy was not migrated with the VLAN change.

D:

This is suited to a different condition, 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. The reported fault instead arises because the management plane's outbound route or firewall policy was not migrated with the VLAN change.

Question 168

A monitoring dashboard hides real device outages because its poller assumes success on missing SNMP responses. Which immediate engineering change most directly addresses this issue?

  1. Configure port mirroring with the actual source interface, traffic direction and capture destination.
  2. Set proper poller timeout and explicit unknown/down status handling rather than treating silence as health.
  3. Investigate the end-to-end user experience path including DNS, authentication and application response.
  4. Update Central management reachability and monitoring source expectations for the new management path.

Explanation

Correct Answer

B:

The underlying issue is that missing telemetry must not be interpreted as a positive health measurement. This intervention addresses that cause directly. A useful result to confirm is: a simulated device outage produces a timely actionable down/unknown alarm.

Incorrect Answers

A:

This is suited to a different condition, such as when a NOC captures an uplink's traffic from the wrong mirror source port and misses the client authentication failure. The reported fault instead arises because missing telemetry must not be interpreted as a positive health measurement.

C:

This is suited to a different condition, such as when UXI sensors show failed cloud-application transactions but the WLAN dashboard reports healthy client associations. The reported fault instead arises because missing telemetry must not be interpreted as a positive health measurement.

D:

This is suited to a different condition, such as when a Central dashboard reports intermittent switch disconnections after device management moves to a new VLAN. The reported fault instead arises because missing telemetry must not be interpreted as a positive health measurement.

Question 169

An external automation script changes CX VLAN configuration but the operations team cannot trace when it happened. Which immediate engineering change most directly addresses this issue?

  1. Capture and verify a restorable device configuration with a tested rollback path.
  2. Investigate the end-to-end user experience path including DNS, authentication and application response.
  3. Use authenticated API calls with individual service identities and change/audit logging.
  4. Collect a properly authorized capture at the trunk or monitor port where tagging is visible.

Explanation

Correct Answer

C:

The underlying issue is that unattributed automation hides which program altered production network policy. This intervention addresses that cause directly. A useful result to confirm is: every API configuration change maps to an approved service identity and recorded request.

Incorrect Answers

A:

This is suited to a different condition, such as when a switch team takes firmware backups but no configuration snapshot before a planned major change. The reported fault instead arises because unattributed automation hides which program altered production network policy.

B:

This is suited to a different condition, such as when UXI sensors show failed cloud-application transactions but the WLAN dashboard reports healthy client associations. The reported fault instead arises because unattributed automation hides which program altered production network policy.

D:

This is suited to a different condition, such as when a packet capture taken only on a client endpoint cannot reveal which VLAN tags the upstream trunk adds to frames. The reported fault instead arises because unattributed automation hides which program altered production network policy.

Question 170

A switch team takes firmware backups but no configuration snapshot before a planned major change. Which immediate engineering change most directly addresses this issue?

  1. Capture and verify a restorable device configuration with a tested rollback path.
  2. Refresh the automation's authorized token or OAuth credentials and verify scope and expiry.
  3. Investigate the end-to-end user experience path including DNS, authentication and application response.
  4. Set proper poller timeout and explicit unknown/down status handling rather than treating silence as health.

Explanation

Correct Answer

A:

The underlying issue is that a software image alone does not reconstruct the previous running configuration. This intervention addresses that cause directly. A useful result to confirm is: a staged rollback restores the intended switch configuration and services.

Incorrect Answers

B:

This is suited to a different condition, such as when a monitoring API integration stops receiving data after a credential rotation despite healthy switch and WAN links. The reported fault instead arises because a software image alone does not reconstruct the previous running configuration.

C:

This is suited to a different condition, such as when UXI sensors show failed cloud-application transactions but the WLAN dashboard reports healthy client associations. The reported fault instead arises because a software image alone does not reconstruct the previous running configuration.

D:

This is suited to a different condition, such as when a monitoring dashboard hides real device outages because its poller assumes success on missing SNMP responses. The reported fault instead arises because a software image alone does not reconstruct the previous running configuration.