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HP HPE7-A01 Practice Test 69

Question 680

A RADIUS server becomes unreachable, and a campus switch allows all new wired clients onto a privileged VLAN. Which belief about the configuration should the team reject?

  1. Turn off TLS server-name and certificate verification on every endpoint
  2. Accept any MAC address from a projector vendor's OUI into the trusted role
  3. Treat every AAA timeout as explicit authorization to the most trusted subnet
  4. Assume identical username text always produces an identical role without policy configuration

Explanation

Correct Answer

C:

Authentication failure is not a proof of user identity. Loss of central identity should not become automatic privilege escalation.

Incorrect Answers

A:

Removing trust checks exposes users to fraudulent authentication servers. It would not resolve the documented symptom; authentication failure is not a proof of user identity.

B:

Vendor prefixes do not guarantee that a device is owned or approved. In this situation, authentication failure is not a proof of user identity.

D:

Service type and NAS attributes can affect authorization rules. By contrast, authentication failure is not a proof of user identity.

Question 681

A RADIUS server becomes unreachable, and a campus switch allows all new wired clients onto a privileged VLAN. What should be included in the rollout plan to limit a foreseeable failure?

  1. Stage group rule changes with explicit denied-access regression cases
  2. Require a controlled exception with owner approval for critical devices
  3. Maintain a device inventory and require a sponsor for each MAB exception
  4. Provide redundant RADIUS endpoints with monitored response health

Explanation

Correct Answer

D:

Availability improvements should not undermine access restrictions. Failure-mode behavior must be observed, not inferred from nominal success.

Incorrect Answers

A:

A broad group rule can affect every student simultaneously. It would not resolve the documented symptom; availability improvements should not undermine access restrictions.

B:

Safety-sensitive endpoints deserve reliable policy governance. By contrast, availability improvements should not undermine access restrictions.

C:

MAC identities can be spoofed and must be governed. The relevant technical distinction is that availability improvements should not undermine access restrictions.

Question 682

A campus deployment changes the RADIUS shared secret and all access ports suddenly reject authentication. What should the network engineer do to address this requirement?

  1. Align the configured shared secret and server identity on both RADIUS client and server
  2. Use MAC authentication bypass with a restricted printer role where supported
  3. Configure 802.1X on the switch with RADIUS and the approved role or VLAN attributes
  4. Check whether the switch accepts and applies the exact VLAN/role attributes returned by RADIUS

Explanation

Correct Answer

A:

Mismatched authentication parameters can cause request rejection or silence. Transport and secret mismatch need distinct diagnostics.

Incorrect Answers

B:

Non-802.1X devices still require an accountable limited access decision. The relevant technical distinction is that mismatched authentication parameters can cause request rejection or silence.

C:

Central identity decisions can determine the client's authorized network segment. By contrast, mismatched authentication parameters can cause request rejection or silence.

D:

A policy may decide correctly while the NAS cannot enforce the result. Here, however, mismatched authentication parameters can cause request rejection or silence.

Question 683

A campus deployment changes the RADIUS shared secret and all access ports suddenly reject authentication. What should the team inspect to confirm the result?

  1. Inspect RADIUS exchange errors and server-side client configuration
  2. Check policy rule hits and the resulting enforced role for student and teacher test accounts
  3. Inspect a permitted and denied administrator command/session along with AAA logs
  4. Attempt a safe revocation test and inspect rejection logs

Explanation

Correct Answer

A:

Transport and secret mismatch need distinct diagnostics. Mismatched authentication parameters can cause request rejection or silence.

Incorrect Answers

B:

Comparing both categories identifies an overbroad match. The relevant technical distinction is that transport and secret mismatch need distinct diagnostics.

C:

Login success alone does not prove command authorization. Here, however, transport and secret mismatch need distinct diagnostics.

D:

A published revocation record alone does not prove the access service reads it. In this situation, transport and secret mismatch need distinct diagnostics.

Question 684

A campus deployment changes the RADIUS shared secret and all access ports suddenly reject authentication. Which misconception is most likely to obstruct a correct fix?

  1. Assume identical username text always produces an identical role without policy configuration
  2. Disable 802.1X globally instead of correcting the RADIUS trust relationship
  3. Assume a guessed device type from a MAC prefix is always sufficient for critical authorization
  4. Place unauthenticated clients directly in the full employee VLAN to simplify setup

Explanation

Correct Answer

B:

Broad bypass trades an administrative error for widespread exposure. Mismatched authentication parameters can cause request rejection or silence.

Incorrect Answers

A:

Service type and NAS attributes can affect authorization rules. Here, however, broad bypass trades an administrative error for widespread exposure.

C:

OUI heuristics can be ambiguous or stale. It would not resolve the documented symptom; broad bypass trades an administrative error for widespread exposure.

D:

An onboarding exception must not confer employee authorization. In this situation, broad bypass trades an administrative error for widespread exposure.

Question 685

A campus deployment changes the RADIUS shared secret and all access ports suddenly reject authentication. What precaution is most important before the change is expanded?

  1. Document device loss response, certificate rotation and offline validation limits
  2. Rotate secrets in a staged manner and preserve a controlled recovery method
  3. Pilot the certificate migration on both new and existing laptops
  4. Retain secure break-glass access and monitor central AAA failures

Explanation

Correct Answer

B:

Coordinated key changes avoid campus-wide login failures. Transport and secret mismatch need distinct diagnostics.

Incorrect Answers

A:

Revocation must be operationally enforceable. In this situation, coordinated key changes avoid campus-wide login failures.

C:

Old clients may have different cached trust configuration. It would not resolve the documented symptom; coordinated key changes avoid campus-wide login failures.

D:

An identity outage must not eliminate authorized emergency maintenance. By contrast, coordinated key changes avoid campus-wide login failures.

Question 686

A wireless group uses EAP-TLS but valid laptops fail after a new issuing CA is adopted. Which configuration decision most directly resolves the situation?

  1. Review the profiling attributes and correct the policy classification using verified device inventory
  2. Align identity policy and role-mapping intent across wired and wireless enforcement points
  3. Correct the RADIUS policy precedence and group-to-role mapping
  4. Update the trusted certificate-chain policy and distribute the intended intermediate/root certificates

Explanation

Correct Answer

D:

EAP-TLS trust requires compatible certificate issuers and approved names. Evidence pinpoints whether client or server trust is missing.

Incorrect Answers

A:

Profiling can be incomplete and should not override device safety requirements blindly. The relevant technical distinction is that eAP-TLS trust requires compatible certificate issuers and approved names.

B:

The same user may otherwise get inconsistent access by transport. By contrast, eAP-TLS trust requires compatible certificate issuers and approved names.

C:

Authorization rules can select the wrong role even with valid identity. It would not resolve the documented symptom; eAP-TLS trust requires compatible certificate issuers and approved names.

Question 687

A wireless group uses EAP-TLS but valid laptops fail after a new issuing CA is adopted. Which check most directly demonstrates the desired network behavior?

  1. Verify the registered printer is assigned print-only access and an unknown MAC is rejected
  2. Test onboarding reachability and denied production destinations for an unauthenticated client
  3. Inspect a permitted and denied administrator command/session along with AAA logs
  4. Check supplicant and RADIUS handshake errors against the full new chain

Explanation

Correct Answer

D:

Evidence pinpoints whether client or server trust is missing. EAP-TLS trust requires compatible certificate issuers and approved names.

Incorrect Answers

A:

MAC-based exceptions should not create an open guest bypass. Here, however, evidence pinpoints whether client or server trust is missing.

B:

The fallback role must allow only the required enrollment workflow. By contrast, evidence pinpoints whether client or server trust is missing.

C:

Login success alone does not prove command authorization. The relevant technical distinction is that evidence pinpoints whether client or server trust is missing.

Question 688

A wireless group uses EAP-TLS but valid laptops fail after a new issuing CA is adopted. Which assumption would be most misleading when investigating this situation?

  1. Increase AP transmission power to repair a wrongly authorized user role
  2. Turn off TLS server-name and certificate verification on every endpoint
  3. Assume a guessed device type from a MAC prefix is always sufficient for critical authorization
  4. Treat every AAA timeout as explicit authorization to the most trusted subnet

Explanation

Correct Answer

B:

Removing trust checks exposes users to fraudulent authentication servers. EAP-TLS trust requires compatible certificate issuers and approved names.

Incorrect Answers

A:

RF strength does not control directory policy selection. In this situation, removing trust checks exposes users to fraudulent authentication servers.

C:

OUI heuristics can be ambiguous or stale. The relevant technical distinction is that removing trust checks exposes users to fraudulent authentication servers.

D:

Authentication failure is not a proof of user identity. Here, however, removing trust checks exposes users to fraudulent authentication servers.

Question 689

A wireless group uses EAP-TLS but valid laptops fail after a new issuing CA is adopted. Which TWO actions together implement the required change and verify that it works? Choose TWO.

  1. Revoke the lost device certificate and ensure the authentication policy checks revocation
  2. Check supplicant and RADIUS handshake errors against the full new chain
  3. Update the trusted certificate-chain policy and distribute the intended intermediate/root certificates
  4. Set ownership, replacement and decommission processes for the registry
  5. Correct the RADIUS policy precedence and group-to-role mapping

Explanation

Correct Answers

B:

Evidence pinpoints whether client or server trust is missing. EAP-TLS trust requires compatible certificate issuers and approved names.

C:

EAP-TLS trust requires compatible certificate issuers and approved names. Evidence pinpoints whether client or server trust is missing.

Incorrect Answers

A:

Credential removal must take effect before expiry for lost devices. Here, however, eAP-TLS trust requires compatible certificate issuers and approved names.

D:

Inventory drift can weaken a MAC-based control. In this situation, old clients may have different cached trust configuration.

E:

Authorization rules can select the wrong role even with valid identity. It would not resolve the documented symptom; eAP-TLS trust requires compatible certificate issuers and approved names.

Question 690

A contractor authenticates on a wired port but the access switch does not install the restricted RADIUS VLAN. What is the most appropriate first technical change?

  1. Correct the RADIUS policy precedence and group-to-role mapping
  2. Return a constrained guest role and apply the corresponding ACL or segment enforcement
  3. Align the configured shared secret and server identity on both RADIUS client and server
  4. Check whether the switch accepts and applies the exact VLAN/role attributes returned by RADIUS

Explanation

Correct Answer

D:

A policy may decide correctly while the NAS cannot enforce the result. The discrepancy distinguishes server decision from device application.

Incorrect Answers

A:

Authorization rules can select the wrong role even with valid identity. It would not resolve the documented symptom; a policy may decide correctly while the NAS cannot enforce the result.

B:

Authorization defines service reachability beyond mere connection success. By contrast, a policy may decide correctly while the NAS cannot enforce the result.

C:

Mismatched authentication parameters can cause request rejection or silence. In this situation, a policy may decide correctly while the NAS cannot enforce the result.

HPE Network Campus Access Professional (HPE7-A01) Practice Tests

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