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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 98

Question 970

A switch team takes firmware backups but no configuration snapshot before a planned major change. Which first diagnostic check is most useful before changing the network?

  1. Inspect backup timestamps, configuration versions and restore test records.
  2. Inspect device Central connection state, management DNS and route.
  3. Compare endpoint and trunk-level captures for VLAN tag visibility.
  4. Inspect Central or switch API audit events and authorization identity.

Explanation

Correct Answer

A:

This check collects evidence at the layer implicated by the symptom: a software image alone does not reconstruct the previous running configuration. Examine the evidence before choosing the corrective change.

Incorrect Answers

B:

This would be a reasonable check when a Central dashboard reports intermittent switch disconnections after device management moves to a new VLAN, but is less direct for the issue at hand: a software image alone does not reconstruct the previous running configuration.

C:

This would be a reasonable check when a packet capture taken only on a client endpoint cannot reveal which VLAN tags the upstream trunk adds to frames, but is less direct for the issue at hand: a software image alone does not reconstruct the previous running configuration.

D:

This would be a reasonable check when an external automation script changes CX VLAN configuration but the operations team cannot trace when it happened, but is less direct for the issue at hand: a software image alone does not reconstruct the previous running configuration.

Question 971

Central shows a device with the wrong site tag, causing its client statistics to appear under another location. Which first diagnostic check is most useful before changing the network?

  1. Inspect configured mirror sources, direction and capture-port counters.
  2. Compare device serial number, site tag and monitoring inventory record.
  3. Inspect polling gaps, retries and state evaluation rules.
  4. Compare endpoint and trunk-level captures for VLAN tag visibility.

Explanation

Correct Answer

B:

This check collects evidence at the layer implicated by the symptom: incorrect inventory metadata misgroups telemetry even when forwarding is healthy. Examine the evidence before choosing the corrective change.

Incorrect Answers

A:

This would be a reasonable check when a NOC captures an uplink's traffic from the wrong mirror source port and misses the client authentication failure, but is less direct for the issue at hand: incorrect inventory metadata misgroups telemetry even when forwarding is healthy.

C:

This would be a reasonable check when a monitoring dashboard hides real device outages because its poller assumes success on missing SNMP responses, but is less direct for the issue at hand: incorrect inventory metadata misgroups telemetry even when forwarding is healthy.

D:

This would be a reasonable check when a packet capture taken only on a client endpoint cannot reveal which VLAN tags the upstream trunk adds to frames, but is less direct for the issue at hand: incorrect inventory metadata misgroups telemetry even when forwarding is healthy.

Question 972

A campus operator enables verbose syslog locally but remote log storage shows no new events. Which first diagnostic check is most useful before changing the network?

  1. Inspect the NAE agent's watched URI, variable and observed counter values.
  2. Inspect backup timestamps, configuration versions and restore test records.
  3. Inspect configured mirror sources, direction and capture-port counters.
  4. Inspect remote logging destinations, source VRF and transport error counters.

Explanation

Correct Answer

D:

This check collects evidence at the layer implicated by the symptom: local log generation does not ensure delivery to the remote collector. Examine the evidence before choosing the corrective change.

Incorrect Answers

A:

This would be a reasonable check when an NAE agent is intended to alert on a growing interface discard counter but the monitored variable is the wrong physical port, but is less direct for the issue at hand: local log generation does not ensure delivery to the remote collector.

B:

This would be a reasonable check when a switch team takes firmware backups but no configuration snapshot before a planned major change, but is less direct for the issue at hand: local log generation does not ensure delivery to the remote collector.

C:

This would be a reasonable check when a NOC captures an uplink's traffic from the wrong mirror source port and misses the client authentication failure, but is less direct for the issue at hand: local log generation does not ensure delivery to the remote collector.

Question 973

A monitoring API integration stops receiving data after a credential rotation despite healthy switch and WAN links. Which first diagnostic check is most useful before changing the network?

  1. Inspect backup timestamps, configuration versions and restore test records.
  2. Inspect API response status, token expiry and granted scope.
  3. Inspect the NAE agent's watched URI, variable and observed counter values.
  4. Inspect Central or switch API audit events and authorization identity.

Explanation

Correct Answer

B:

This check collects evidence at the layer implicated by the symptom: application API authentication failed; physical data forwarding still works. Examine the evidence before choosing the corrective change.

Incorrect Answers

A:

This would be a reasonable check when a switch team takes firmware backups but no configuration snapshot before a planned major change, but is less direct for the issue at hand: application API authentication failed; physical data forwarding still works.

C:

This would be a reasonable check when an NAE agent is intended to alert on a growing interface discard counter but the monitored variable is the wrong physical port, but is less direct for the issue at hand: application API authentication failed; physical data forwarding still works.

D:

This would be a reasonable check when an external automation script changes CX VLAN configuration but the operations team cannot trace when it happened, but is less direct for the issue at hand: application API authentication failed; physical data forwarding still works.

Question 974

An engineer sees high CPU on an access switch but proposes rebooting it immediately during the school day. Which first diagnostic check is most useful before changing the network?

  1. Inspect backup timestamps, configuration versions and restore test records.
  2. Inspect device Central connection state, management DNS and route.
  3. Inspect CPU by process, logs and control-plane packet activity.
  4. Inspect the NAE agent's watched URI, variable and observed counter values.

Explanation

Correct Answer

C:

This check collects evidence at the layer implicated by the symptom: high CPU alone does not identify its source or justify interrupting healthy traffic. Examine the evidence before choosing the corrective change.

Incorrect Answers

A:

This would be a reasonable check when a switch team takes firmware backups but no configuration snapshot before a planned major change, but is less direct for the issue at hand: high CPU alone does not identify its source or justify interrupting healthy traffic.

B:

This would be a reasonable check when a Central dashboard reports intermittent switch disconnections after device management moves to a new VLAN, but is less direct for the issue at hand: high CPU alone does not identify its source or justify interrupting healthy traffic.

D:

This would be a reasonable check when an NAE agent is intended to alert on a growing interface discard counter but the monitored variable is the wrong physical port, but is less direct for the issue at hand: high CPU alone does not identify its source or justify interrupting healthy traffic.

Question 975

A wired client reports no network access, and a technician wants to replace the core router before inspecting the local port. Which first diagnostic check is most useful before changing the network?

  1. Capture DNS queries and inspect per-floor VLAN and DHCP scope assignment.
  2. Diff running configurations against the last approved baseline.
  3. Compare interface CRC and packet-loss metrics across the affected path.
  4. Inspect interface carrier, client session and access VLAN state.

Explanation

Correct Answer

D:

This check collects evidence at the layer implicated by the symptom: the failure may originate at the access interface, where core replacement would not correct it. Examine the evidence before choosing the corrective change.

Incorrect Answers

A:

This would be a reasonable check when only one floor's wireless clients cannot reach DNS while other floors on the same SSID work, but is less direct for the issue at hand: the failure may originate at the access interface, where core replacement would not correct it.

B:

This would be a reasonable check when a campus deployment has repeated outages after hurried template changes, and the NOC has no versioned baseline for comparison, but is less direct for the issue at hand: the failure may originate at the access interface, where core replacement would not correct it.

C:

This would be a reasonable check when a user has a valid IP address but intermittent access to a local service, and switch counters show CRC errors, but is less direct for the issue at hand: the failure may originate at the access interface, where core replacement would not correct it.

Question 976

Only one floor's wireless clients cannot reach DNS while other floors on the same SSID work. Which first diagnostic check is most useful before changing the network?

  1. Capture DNS queries and inspect per-floor VLAN and DHCP scope assignment.
  2. Inspect management routes, DNS resolution and cloud connectivity logs.
  3. Inspect failing-versus-working host routes and effective authorization roles.
  4. Inspect EAP logs, certificate chain and AAA server response.

Explanation

Correct Answer

A:

This check collects evidence at the layer implicated by the symptom: the localized failure suggests a site-specific client subnet or uplink difference. Examine the evidence before choosing the corrective change.

Incorrect Answers

B:

This would be a reasonable check when a switch appears unreachable from Central yet local console shows healthy data-plane operation, but is less direct for the issue at hand: the localized failure suggests a site-specific client subnet or uplink difference.

C:

This would be a reasonable check when a single client cannot reach a printer even though other clients in the same VLAN succeed, but is less direct for the issue at hand: the localized failure suggests a site-specific client subnet or uplink difference.

D:

This would be a reasonable check when an AP reports excellent RF signal but EAP-TLS clients fail to join after a certificate update, but is less direct for the issue at hand: the localized failure suggests a site-specific client subnet or uplink difference.

Question 977

A user has a valid IP address but intermittent access to a local service, and switch counters show CRC errors. Which first diagnostic check is most useful before changing the network?

  1. Inspect failing-versus-working host routes and effective authorization roles.
  2. Compare interface CRC and packet-loss metrics across the affected path.
  3. Compare static routes, redistribution maps and received OSPF LSAs.
  4. Inspect management routes, DNS resolution and cloud connectivity logs.

Explanation

Correct Answer

B:

This check collects evidence at the layer implicated by the symptom: frame corruption can create sporadic loss despite correct Layer 3 settings. Examine the evidence before choosing the corrective change.

Incorrect Answers

A:

This would be a reasonable check when a single client cannot reach a printer even though other clients in the same VLAN succeed, but is less direct for the issue at hand: frame corruption can create sporadic loss despite correct Layer 3 settings.

C:

This would be a reasonable check when two core switches disagree on an OSPF route after a configuration change, and one advertises a stale static prefix, but is less direct for the issue at hand: frame corruption can create sporadic loss despite correct Layer 3 settings.

D:

This would be a reasonable check when a switch appears unreachable from Central yet local console shows healthy data-plane operation, but is less direct for the issue at hand: frame corruption can create sporadic loss despite correct Layer 3 settings.

Question 978

Several users lose connectivity after a DHCP renewal while clients with static addresses continue working. Which first diagnostic check is most useful before changing the network?

  1. Inspect failing-versus-working host routes and effective authorization roles.
  2. Compare static routes, redistribution maps and received OSPF LSAs.
  3. Capture DHCP renewal packets and inspect lease exhaustion or server failures.
  4. Trace a client flow through route lookup, DNS and perimeter counters.

Explanation

Correct Answer

C:

This check collects evidence at the layer implicated by the symptom: the symptom localizes to address assignment or renewal rather than general switching failure. Examine the evidence before choosing the corrective change.

Incorrect Answers

A:

This would be a reasonable check when a single client cannot reach a printer even though other clients in the same VLAN succeed, but is less direct for the issue at hand: the symptom localizes to address assignment or renewal rather than general switching failure.

B:

This would be a reasonable check when two core switches disagree on an OSPF route after a configuration change, and one advertises a stale static prefix, but is less direct for the issue at hand: the symptom localizes to address assignment or renewal rather than general switching failure.

D:

This would be a reasonable check when a campus VLAN can reach its gateway but cannot access an internet SaaS site although neighboring VLANs can, but is less direct for the issue at hand: the symptom localizes to address assignment or renewal rather than general switching failure.

Question 979

An AP reports excellent RF signal but EAP-TLS clients fail to join after a certificate update. Which first diagnostic check is most useful before changing the network?

  1. Capture DHCP renewal packets and inspect lease exhaustion or server failures.
  2. Inspect interface carrier, client session and access VLAN state.
  3. Diff running configurations against the last approved baseline.
  4. Inspect EAP logs, certificate chain and AAA server response.

Explanation

Correct Answer

D:

This check collects evidence at the layer implicated by the symptom: authentication failure occurs after RF discovery; radio strength is not the limiting factor. Examine the evidence before choosing the corrective change.

Incorrect Answers

A:

This would be a reasonable check when several users lose connectivity after a DHCP renewal while clients with static addresses continue working, but is less direct for the issue at hand: authentication failure occurs after RF discovery; radio strength is not the limiting factor.

B:

This would be a reasonable check when a wired client reports no network access, and a technician wants to replace the core router before inspecting the local port, but is less direct for the issue at hand: authentication failure occurs after RF discovery; radio strength is not the limiting factor.

C:

This would be a reasonable check when a campus deployment has repeated outages after hurried template changes, and the NOC has no versioned baseline for comparison, but is less direct for the issue at hand: authentication failure occurs after RF discovery; radio strength is not the limiting factor.

Question 980

A campus VLAN can reach its gateway but cannot access an internet SaaS site although neighboring VLANs can. Which first diagnostic check is most useful before changing the network?

  1. Trace a client flow through route lookup, DNS and perimeter counters.
  2. Inspect interface carrier, client session and access VLAN state.
  3. Inspect failing-versus-working host routes and effective authorization roles.
  4. Inspect roam event timestamps, reassociation and IP session continuity.

Explanation

Correct Answer

A:

This check collects evidence at the layer implicated by the symptom: local gateway success does not verify downstream routed, policy or name-resolution service. Examine the evidence before choosing the corrective change.

Incorrect Answers

B:

This would be a reasonable check when a wired client reports no network access, and a technician wants to replace the core router before inspecting the local port, but is less direct for the issue at hand: local gateway success does not verify downstream routed, policy or name-resolution service.

C:

This would be a reasonable check when a single client cannot reach a printer even though other clients in the same VLAN succeed, but is less direct for the issue at hand: local gateway success does not verify downstream routed, policy or name-resolution service.

D:

This would be a reasonable check when voice handsets lose calls only after crossing between two APs, while stationary calls remain stable, but is less direct for the issue at hand: local gateway success does not verify downstream routed, policy or name-resolution service.