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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 96

Question 950

An access controller accepts a staff user from RADIUS but assigns the guest role because the expected role attribute is absent. Which first diagnostic check is most useful before changing the network?

  1. Inspect MAC authentication requests and the profile/classification returned by AAA.
  2. Inspect server hostname resolution and live AAA target addresses.
  3. Inspect certificate EKU, subject mapping and AAA rejection trace.
  4. Inspect RADIUS Access-Accept attributes and client effective role.

Explanation

Correct Answer

D:

This check collects evidence at the layer implicated by the symptom: successful authentication alone does not guarantee the intended network authorization attributes. Examine the evidence before choosing the corrective change.

Incorrect Answers

A:

This would be a reasonable check when a lab's headless sensors cannot run an 802.1X supplicant, and technicians propose allowing every unknown MAC to bypass access control, but is less direct for the issue at hand: successful authentication alone does not guarantee the intended network authorization attributes.

B:

This would be a reasonable check when a campus AAA deployment has two RADIUS servers, but requests continue timing out because both hostnames resolve to the same failed address, but is less direct for the issue at hand: successful authentication alone does not guarantee the intended network authorization attributes.

C:

This would be a reasonable check when a client presents a valid EAP-TLS certificate but its EKU or identity mapping does not meet the enterprise admission rule, but is less direct for the issue at hand: successful authentication alone does not guarantee the intended network authorization attributes.

Question 951

A lab's headless sensors cannot run an 802.1X supplicant, and technicians propose allowing every unknown MAC to bypass access control. Which first diagnostic check is most useful before changing the network?

  1. Inspect RADIUS Access-Accept attributes and client effective role.
  2. Inspect certificate EKU, subject mapping and AAA rejection trace.
  3. Inspect MAC authentication requests and the profile/classification returned by AAA.
  4. Inspect service selection traces and matching attributes for the failed request.

Explanation

Correct Answer

C:

This check collects evidence at the layer implicated by the symptom: an open unknown-MAC bypass would provide uncontrolled network access beyond the required sensor class. Examine the evidence before choosing the corrective change.

Incorrect Answers

A:

This would be a reasonable check when an access controller accepts a staff user from RADIUS but assigns the guest role because the expected role attribute is absent, but is less direct for the issue at hand: an open unknown-MAC bypass would provide uncontrolled network access beyond the required sensor class.

B:

This would be a reasonable check when a client presents a valid EAP-TLS certificate but its EKU or identity mapping does not meet the enterprise admission rule, but is less direct for the issue at hand: an open unknown-MAC bypass would provide uncontrolled network access beyond the required sensor class.

D:

This would be a reasonable check when a ClearPass service selects the wrong authentication source because a generic catch-all service rule matches before the intended EAP-TLS policy, but is less direct for the issue at hand: an open unknown-MAC bypass would provide uncontrolled network access beyond the required sensor class.

Question 952

A ClearPass service selects the wrong authentication source because a generic catch-all service rule matches before the intended EAP-TLS policy. Which first diagnostic check is most useful before changing the network?

  1. Inspect certificate EKU, subject mapping and AAA rejection trace.
  2. Inspect authentication timeout behavior and critical or fallback role assignments.
  3. Inspect service selection traces and matching attributes for the failed request.
  4. Inspect per-MAC authentication sessions and assigned domains on the port.

Explanation

Correct Answer

C:

This check collects evidence at the layer implicated by the symptom: a broad rule takes precedence and routes requests to the wrong policy context. Examine the evidence before choosing the corrective change.

Incorrect Answers

A:

This would be a reasonable check when a client presents a valid EAP-TLS certificate but its EKU or identity mapping does not meet the enterprise admission rule, but is less direct for the issue at hand: a broad rule takes precedence and routes requests to the wrong policy context.

B:

This would be a reasonable check when a remote warehouse has intermittent RADIUS reachability, and the team plans to fail open every corporate user port to restore continuity, but is less direct for the issue at hand: a broad rule takes precedence and routes requests to the wrong policy context.

D:

This would be a reasonable check when a wired port with both a phone and workstation grants employee access to the phone's unauthenticated identity, but is less direct for the issue at hand: a broad rule takes precedence and routes requests to the wrong policy context.

Question 953

A corporate certificate was revoked, yet a connected endpoint retains network access indefinitely because no session reauthentication or revocation response occurs. Which first diagnostic check is most useful before changing the network?

  1. Inspect MAC authentication requests and the profile/classification returned by AAA.
  2. Inspect effective RADIUS authorization rule and returned role for the contractor.
  3. Inspect session age, EAP state and revocation or CoA events.
  4. Inspect certificate EKU, subject mapping and AAA rejection trace.

Explanation

Correct Answer

C:

This check collects evidence at the layer implicated by the symptom: initial admission is not continuously reconsidered after credential status changes. Examine the evidence before choosing the corrective change.

Incorrect Answers

A:

This would be a reasonable check when a lab's headless sensors cannot run an 802.1X supplicant, and technicians propose allowing every unknown MAC to bypass access control, but is less direct for the issue at hand: initial admission is not continuously reconsidered after credential status changes.

B:

This would be a reasonable check when a contractor is in the approved directory group but receives employee network privileges because role mapping ignores the account's contractor attribute, but is less direct for the issue at hand: initial admission is not continuously reconsidered after credential status changes.

D:

This would be a reasonable check when a client presents a valid EAP-TLS certificate but its EKU or identity mapping does not meet the enterprise admission rule, but is less direct for the issue at hand: initial admission is not continuously reconsidered after credential status changes.

Question 954

A network operator sends RADIUS CoA to update a client's role but the switch does not accept it from the configured AAA server. Which first diagnostic check is most useful before changing the network?

  1. Inspect CoA request logs, source addresses and device accept/reject reason.
  2. Inspect effective RADIUS authorization rule and returned role for the contractor.
  3. Inspect server hostname resolution and live AAA target addresses.
  4. Compare RADIUS responses and per-switch authorization mapping.

Explanation

Correct Answer

A:

This check collects evidence at the layer implicated by the symptom: an unauthorized or unreachable dynamic-authorization source cannot change an active client's policy. Examine the evidence before choosing the corrective change.

Incorrect Answers

B:

This would be a reasonable check when a contractor is in the approved directory group but receives employee network privileges because role mapping ignores the account's contractor attribute, but is less direct for the issue at hand: an unauthorized or unreachable dynamic-authorization source cannot change an active client's policy.

C:

This would be a reasonable check when a campus AAA deployment has two RADIUS servers, but requests continue timing out because both hostnames resolve to the same failed address, but is less direct for the issue at hand: an unauthorized or unreachable dynamic-authorization source cannot change an active client's policy.

D:

This would be a reasonable check when a user moves between wired campus locations and receives inconsistent roles because one access switch uses an older enforcement dictionary, but is less direct for the issue at hand: an unauthorized or unreachable dynamic-authorization source cannot change an active client's policy.

Question 955

A wired port with both a phone and workstation grants employee access to the phone's unauthenticated identity. Which first diagnostic check is most useful before changing the network?

  1. Inspect MAC authentication requests and the profile/classification returned by AAA.
  2. Inspect per-MAC authentication sessions and assigned domains on the port.
  3. Inspect certificate EKU, subject mapping and AAA rejection trace.
  4. Inspect session age, EAP state and revocation or CoA events.

Explanation

Correct Answer

B:

This check collects evidence at the layer implicated by the symptom: treating all MACs on one physical port as a single authorized device can leak privilege. Examine the evidence before choosing the corrective change.

Incorrect Answers

A:

This would be a reasonable check when a lab's headless sensors cannot run an 802.1X supplicant, and technicians propose allowing every unknown MAC to bypass access control, but is less direct for the issue at hand: treating all MACs on one physical port as a single authorized device can leak privilege.

C:

This would be a reasonable check when a client presents a valid EAP-TLS certificate but its EKU or identity mapping does not meet the enterprise admission rule, but is less direct for the issue at hand: treating all MACs on one physical port as a single authorized device can leak privilege.

D:

This would be a reasonable check when a corporate certificate was revoked, yet a connected endpoint retains network access indefinitely because no session reauthentication or revocation response occurs, but is less direct for the issue at hand: treating all MACs on one physical port as a single authorized device can leak privilege.

Question 956

A contractor is in the approved directory group but receives employee network privileges because role mapping ignores the account's contractor attribute. Which first diagnostic check is most useful before changing the network?

  1. Inspect RADIUS Access-Accept attributes and client effective role.
  2. Inspect port-access state, fallback role and actual client policy.
  3. Inspect effective RADIUS authorization rule and returned role for the contractor.
  4. Inspect server hostname resolution and live AAA target addresses.

Explanation

Correct Answer

C:

This check collects evidence at the layer implicated by the symptom: an authentication success mapped through an overbroad role condition grants excessive access. Examine the evidence before choosing the corrective change.

Incorrect Answers

A:

This would be a reasonable check when an access controller accepts a staff user from RADIUS but assigns the guest role because the expected role attribute is absent, but is less direct for the issue at hand: an authentication success mapped through an overbroad role condition grants excessive access.

B:

This would be a reasonable check when an access switch performs 802.1X on user ports, but unauthenticated clients are placed into production VLAN by an incorrect fallback policy, but is less direct for the issue at hand: an authentication success mapped through an overbroad role condition grants excessive access.

D:

This would be a reasonable check when a campus AAA deployment has two RADIUS servers, but requests continue timing out because both hostnames resolve to the same failed address, but is less direct for the issue at hand: an authentication success mapped through an overbroad role condition grants excessive access.

Question 957

A remote warehouse has intermittent RADIUS reachability, and the team plans to fail open every corporate user port to restore continuity. Which first diagnostic check is most useful before changing the network?

  1. Inspect CoA request logs, source addresses and device accept/reject reason.
  2. Inspect effective RADIUS authorization rule and returned role for the contractor.
  3. Inspect RADIUS Access-Accept attributes and client effective role.
  4. Inspect authentication timeout behavior and critical or fallback role assignments.

Explanation

Correct Answer

D:

This check collects evidence at the layer implicated by the symptom: a blanket fail-open decision trades an AAA outage for uncontrolled internal access. Examine the evidence before choosing the corrective change.

Incorrect Answers

A:

This would be a reasonable check when a network operator sends RADIUS CoA to update a client's role but the switch does not accept it from the configured AAA server, but is less direct for the issue at hand: a blanket fail-open decision trades an AAA outage for uncontrolled internal access.

B:

This would be a reasonable check when a contractor is in the approved directory group but receives employee network privileges because role mapping ignores the account's contractor attribute, but is less direct for the issue at hand: a blanket fail-open decision trades an AAA outage for uncontrolled internal access.

C:

This would be a reasonable check when an access controller accepts a staff user from RADIUS but assigns the guest role because the expected role attribute is absent, but is less direct for the issue at hand: a blanket fail-open decision trades an AAA outage for uncontrolled internal access.

Question 958

A client presents a valid EAP-TLS certificate but its EKU or identity mapping does not meet the enterprise admission rule. Which first diagnostic check is most useful before changing the network?

  1. Inspect certificate EKU, subject mapping and AAA rejection trace.
  2. Inspect server hostname resolution and live AAA target addresses.
  3. Inspect supplicant certificate selection and EAP error codes.
  4. Inspect guest account status, session attributes and expiry timestamp.

Explanation

Correct Answer

A:

This check collects evidence at the layer implicated by the symptom: certificate validity does not imply that its purpose and identity satisfy policy. Examine the evidence before choosing the corrective change.

Incorrect Answers

B:

This would be a reasonable check when a campus AAA deployment has two RADIUS servers, but requests continue timing out because both hostnames resolve to the same failed address, but is less direct for the issue at hand: certificate validity does not imply that its purpose and identity satisfy policy.

C:

This would be a reasonable check when a corporate EAP-TLS enrollment works for most laptops but newly issued devices lack the required client certificate, but is less direct for the issue at hand: certificate validity does not imply that its purpose and identity satisfy policy.

D:

This would be a reasonable check when a guest sponsor approves a visitor account, but the NAC policy still maps the visitor to the expired guest role, but is less direct for the issue at hand: certificate validity does not imply that its purpose and identity satisfy policy.

Question 959

A guest sponsor approves a visitor account, but the NAC policy still maps the visitor to the expired guest role. Which first diagnostic check is most useful before changing the network?

  1. Inspect guest account status, session attributes and expiry timestamp.
  2. Inspect certificate EKU, subject mapping and AAA rejection trace.
  3. Inspect supplicant certificate selection and EAP error codes.
  4. Inspect EAP method progress, RADIUS decision and eventual assigned access role.

Explanation

Correct Answer

A:

This check collects evidence at the layer implicated by the symptom: the sponsor approval is not reflected in the effective authorization record or session. Examine the evidence before choosing the corrective change.

Incorrect Answers

B:

This would be a reasonable check when a client presents a valid EAP-TLS certificate but its EKU or identity mapping does not meet the enterprise admission rule, but is less direct for the issue at hand: the sponsor approval is not reflected in the effective authorization record or session.

C:

This would be a reasonable check when a corporate EAP-TLS enrollment works for most laptops but newly issued devices lack the required client certificate, but is less direct for the issue at hand: the sponsor approval is not reflected in the effective authorization record or session.

D:

This would be a reasonable check when a switch shows an EAP failure but engineers alter the user's VLAN before confirming whether the supplicant completed authentication, but is less direct for the issue at hand: the sponsor approval is not reflected in the effective authorization record or session.

Question 960

A campus AAA deployment has two RADIUS servers, but requests continue timing out because both hostnames resolve to the same failed address. Which first diagnostic check is most useful before changing the network?

  1. Inspect guest account status, session attributes and expiry timestamp.
  2. Inspect server hostname resolution and live AAA target addresses.
  3. Inspect session age, EAP state and revocation or CoA events.
  4. Inspect RADIUS timeout logs, source addresses and UDP/TCP ACL counters as applicable.

Explanation

Correct Answer

B:

This check collects evidence at the layer implicated by the symptom: configured redundancy is illusory when both server entries point to one unavailable destination. Examine the evidence before choosing the corrective change.

Incorrect Answers

A:

This would be a reasonable check when a guest sponsor approves a visitor account, but the NAC policy still maps the visitor to the expired guest role, but is less direct for the issue at hand: configured redundancy is illusory when both server entries point to one unavailable destination.

C:

This would be a reasonable check when a corporate certificate was revoked, yet a connected endpoint retains network access indefinitely because no session reauthentication or revocation response occurs, but is less direct for the issue at hand: configured redundancy is illusory when both server entries point to one unavailable destination.

D:

This would be a reasonable check when staff Wi-Fi clients have correct certificates but the RADIUS server cannot see authentication requests after a network ACL update, but is less direct for the issue at hand: configured redundancy is illusory when both server entries point to one unavailable destination.