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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 18

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.

Question 171

Central shows a device with the wrong site tag, causing its client statistics to appear under another location. Which immediate engineering change most directly addresses this issue?

  1. Configure port mirroring with the actual source interface, traffic direction and capture destination.
  2. Investigate the end-to-end user experience path including DNS, authentication and application response.
  3. Correct the device inventory or site assignment without changing unrelated network behavior.
  4. Correlate process or control-plane metrics with traffic and event logs before choosing a maintenance action.

Explanation

Correct Answer

C:

The underlying issue is that incorrect inventory metadata misgroups telemetry even when forwarding is healthy. This intervention addresses that cause directly. A useful result to confirm is: the device and associated clients appear under the correct location in Central.

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 incorrect inventory metadata misgroups telemetry even when forwarding is healthy.

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 incorrect inventory metadata misgroups telemetry even when forwarding is healthy.

D:

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 incorrect inventory metadata misgroups telemetry even when forwarding is healthy.

Question 172

A campus operator enables verbose syslog locally but remote log storage shows no new events. 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. Configure port mirroring with the actual source interface, traffic direction and capture destination.
  3. Configure a reachable remote syslog destination and supported severity/facility forwarding settings.
  4. Refresh the automation's authorized token or OAuth credentials and verify scope and expiry.

Explanation

Correct Answer

C:

The underlying issue is that local log generation does not ensure delivery to the remote collector. This intervention addresses that cause directly. A useful result to confirm is: a generated network event arrives at the authorized centralized log service.

Incorrect Answers

A:

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 local log generation does not ensure delivery to the remote collector.

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 local log generation does not ensure delivery to the remote collector.

D:

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 local log generation does not ensure delivery to the remote collector.

Question 173

A monitoring API integration stops receiving data after a credential rotation despite healthy switch and WAN links. 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. Collect a properly authorized capture at the trunk or monitor port where tagging is visible.
  4. Refresh the automation's authorized token or OAuth credentials and verify scope and expiry.

Explanation

Correct Answer

D:

The underlying issue is that application API authentication failed; physical data forwarding still works. This intervention addresses that cause directly. A useful result to confirm is: the integration receives authorized monitoring responses with the current credential.

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 application API authentication failed; physical data forwarding still works.

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 application API authentication failed; physical data forwarding still works.

C:

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 application API authentication failed; physical data forwarding still works.

Question 174

An engineer sees high CPU on an access switch but proposes rebooting it immediately during the school day. Which immediate engineering change most directly addresses this issue?

  1. Correlate process or control-plane metrics with traffic and event logs before choosing a maintenance action.
  2. Correct the NAE script or agent watch expression to target the affected interface statistic.
  3. Capture and verify a restorable device configuration with a tested rollback path.
  4. Refresh the automation's authorized token or OAuth credentials and verify scope and expiry.

Explanation

Correct Answer

A:

The underlying issue is that high CPU alone does not identify its source or justify interrupting healthy traffic. This intervention addresses that cause directly. A useful result to confirm is: the identified process or event is addressed and CPU trends normalize without unnecessary downtime.

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 high CPU alone does not identify its source or justify interrupting healthy traffic.

C:

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 high CPU alone does not identify its source or justify interrupting healthy traffic.

D:

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 high CPU alone does not identify its source or justify interrupting healthy traffic.

Question 175

A wired client reports no network access, and a technician wants to replace the core router before inspecting the local port. Which immediate engineering change most directly addresses this issue?

  1. Compare the affected AP's client VLAN transport and DHCP-provided DNS against the healthy floor.
  2. Investigate the physical cable/optic path and fix the corruption before changing IP routes.
  3. Check link state, authentication and assigned VLAN at the access edge before escalating to the core.
  4. Inspect route sources, redistribution and current LSA state before resetting adjacencies.

Explanation

Correct Answer

C:

The underlying issue is that the failure may originate at the access interface, where core replacement would not correct it. This intervention addresses that cause directly. A useful result to confirm is: a verified edge correction restores the client's address and required reachability.

Incorrect Answers

A:

This is suited to a different condition, such as when only one floor's wireless clients cannot reach DNS while other floors on the same SSID work. The reported fault instead arises because the failure may originate at the access interface, where core replacement would not correct it.

B:

This is suited to a different condition, such as when a user has a valid IP address but intermittent access to a local service, and switch counters show CRC errors. The reported fault instead arises because the failure may originate at the access interface, where core replacement would not correct it.

D:

This is suited to a different condition, such as when two core switches disagree on an OSPF route after a configuration change, and one advertises a stale static prefix. The reported fault instead arises because the failure may originate at the access interface, where core replacement would not correct it.

Question 176

Only one floor's wireless clients cannot reach DNS while other floors on the same SSID work. Which immediate engineering change most directly addresses this issue?

  1. Trace DHCP discover/offer/relay behavior and the assigned scope options.
  2. Compare the affected AP's client VLAN transport and DHCP-provided DNS against the healthy floor.
  3. Investigate the management interface, VRF, DNS and cloud session separately from user forwarding.
  4. Restore a known approved configuration and institute version-controlled change review with acceptance checks.

Explanation

Correct Answer

B:

The underlying issue is that the localized failure suggests a site-specific client subnet or uplink difference. This intervention addresses that cause directly. A useful result to confirm is: affected clients resolve the same approved DNS names as the control group.

Incorrect Answers

A:

This is suited to a different condition, such as when several users lose connectivity after a DHCP renewal while clients with static addresses continue working. The reported fault instead arises because the localized failure suggests a site-specific client subnet or uplink difference.

C:

This is suited to a different condition, such as when a switch appears unreachable from Central yet local console shows healthy data-plane operation. The reported fault instead arises because the localized failure suggests a site-specific client subnet or uplink difference.

D:

This is suited to a different condition, such as when a campus deployment has repeated outages after hurried template changes, and the NOC has no versioned baseline for comparison. The reported fault instead arises because the localized failure suggests a site-specific client subnet or uplink difference.

Question 177

A user has a valid IP address but intermittent access to a local service, and switch counters show CRC errors. Which immediate engineering change most directly addresses this issue?

  1. Trace DHCP discover/offer/relay behavior and the assigned scope options.
  2. Measure RF airtime and wireless retransmissions before escalating the wired carrier.
  3. Investigate the physical cable/optic path and fix the corruption before changing IP routes.
  4. Capture roaming and authentication handoff timing along the mobility path.

Explanation

Correct Answer

C:

The underlying issue is that frame corruption can create sporadic loss despite correct Layer 3 settings. This intervention addresses that cause directly. A useful result to confirm is: CRC errors stop increasing and the service remains reliable under traffic.

Incorrect Answers

A:

This is suited to a different condition, such as when several users lose connectivity after a DHCP renewal while clients with static addresses continue working. The reported fault instead arises because frame corruption can create sporadic loss despite correct Layer 3 settings.

B:

This is suited to a different condition, such as when a network administrator assumes a wireless slowdown is an ISP fault, but wired clients on the same WAN are fast. The reported fault instead arises because frame corruption can create sporadic loss despite correct Layer 3 settings.

D:

This is suited to a different condition, such as when voice handsets lose calls only after crossing between two APs, while stationary calls remain stable. The reported fault instead arises because frame corruption can create sporadic loss despite correct Layer 3 settings.

Question 178

Several users lose connectivity after a DHCP renewal while clients with static addresses continue working. Which immediate engineering change most directly addresses this issue?

  1. Trace DHCP discover/offer/relay behavior and the assigned scope options.
  2. Inspect route sources, redistribution and current LSA state before resetting adjacencies.
  3. Compare the failing client's address, authentication role and host firewall with a working peer.
  4. Compare the affected AP's client VLAN transport and DHCP-provided DNS against the healthy floor.

Explanation

Correct Answer

A:

The underlying issue is that the symptom localizes to address assignment or renewal rather than general switching failure. This intervention addresses that cause directly. A useful result to confirm is: renewing clients receive valid leases, gateway and DNS settings.

Incorrect Answers

B:

This is suited to a different condition, such as when two core switches disagree on an OSPF route after a configuration change, and one advertises a stale static prefix. The reported fault instead arises because the symptom localizes to address assignment or renewal rather than general switching failure.

C:

This is suited to a different condition, such as when a single client cannot reach a printer even though other clients in the same VLAN succeed. The reported fault instead arises because the symptom localizes to address assignment or renewal rather than general switching failure.

D:

This is suited to a different condition, such as when only one floor's wireless clients cannot reach DNS while other floors on the same SSID work. The reported fault instead arises because the symptom localizes to address assignment or renewal rather than general switching failure.

Question 179

An AP reports excellent RF signal but EAP-TLS clients fail to join after a certificate update. Which immediate engineering change most directly addresses this issue?

  1. Check supplicant and RADIUS certificate negotiation rather than altering the radio channel plan.
  2. Inspect route sources, redistribution and current LSA state before resetting adjacencies.
  3. Compare the failing client's address, authentication role and host firewall with a working peer.
  4. Follow the affected VLAN's gateway, NAT or perimeter policy and DNS path to the external destination.

Explanation

Correct Answer

A:

The underlying issue is that authentication failure occurs after RF discovery; radio strength is not the limiting factor. This intervention addresses that cause directly. A useful result to confirm is: approved clients complete EAP-TLS and obtain the expected role.

Incorrect Answers

B:

This is suited to a different condition, such as when two core switches disagree on an OSPF route after a configuration change, and one advertises a stale static prefix. The reported fault instead arises because authentication failure occurs after RF discovery; radio strength is not the limiting factor.

C:

This is suited to a different condition, such as when a single client cannot reach a printer even though other clients in the same VLAN succeed. The reported fault instead arises because authentication failure occurs after RF discovery; radio strength is not the limiting factor.

D:

This is suited to a different condition, such as when a campus VLAN can reach its gateway but cannot access an internet SaaS site although neighboring VLANs can. The reported fault instead arises because authentication failure occurs after RF discovery; radio strength is not the limiting factor.

Question 180

A campus VLAN can reach its gateway but cannot access an internet SaaS site although neighboring VLANs can. Which immediate engineering change most directly addresses this issue?

  1. Investigate the physical cable/optic path and fix the corruption before changing IP routes.
  2. Inspect route sources, redistribution and current LSA state before resetting adjacencies.
  3. Follow the affected VLAN's gateway, NAT or perimeter policy and DNS path to the external destination.
  4. Measure RF airtime and wireless retransmissions before escalating the wired carrier.

Explanation

Correct Answer

C:

The underlying issue is that local gateway success does not verify downstream routed, policy or name-resolution service. This intervention addresses that cause directly. A useful result to confirm is: a permitted SaaS transaction succeeds from the affected VLAN without relaxing unrelated policy.

Incorrect Answers

A:

This is suited to a different condition, such as when a user has a valid IP address but intermittent access to a local service, and switch counters show CRC errors. The reported fault instead arises because local gateway success does not verify downstream routed, policy or name-resolution service.

B:

This is suited to a different condition, such as when two core switches disagree on an OSPF route after a configuration change, and one advertises a stale static prefix. The reported fault instead arises because local gateway success does not verify downstream routed, policy or name-resolution service.

D:

This is suited to a different condition, such as when a network administrator assumes a wireless slowdown is an ISP fault, but wired clients on the same WAN are fast. The reported fault instead arises because local gateway success does not verify downstream routed, policy or name-resolution service.