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Question 670
A lab has printers without 802.1X supplicants but requires controlled access to an approved print service. What should the network engineer do to address this requirement?
- Align identity policy and role-mapping intent across wired and wireless enforcement points
- Return a constrained guest role and apply the corresponding ACL or segment enforcement
- Use MAC authentication bypass with a restricted printer role where supported
- Align the configured shared secret and server identity on both RADIUS client and server
Explanation
Correct Answer
C:Non-802.1X devices still require an accountable limited access decision. MAC-based exceptions should not create an open guest bypass.
Incorrect Answers
A:The same user may otherwise get inconsistent access by transport. By contrast, non-802.1X devices still require an accountable limited access decision.
B:Authorization defines service reachability beyond mere connection success. In this situation, non-802.1X devices still require an accountable limited access decision.
D:Mismatched authentication parameters can cause request rejection or silence. It would not resolve the documented symptom; non-802.1X devices still require an accountable limited access decision.
Question 671
A lab has printers without 802.1X supplicants but requires controlled access to an approved print service. What should the team inspect to confirm the result?
- Verify the registered printer is assigned print-only access and an unknown MAC is rejected
- Inspect a permitted and denied administrator command/session along with AAA logs
- Measure first-login time and observe RADIUS requests during primary loss
- Check policy rule hits and the resulting enforced role for student and teacher test accounts
Explanation
Correct Answer
A:MAC-based exceptions should not create an open guest bypass. Non-802.1X devices still require an accountable limited access decision.
Incorrect Answers
B:Login success alone does not prove command authorization. The relevant technical distinction is that mAC-based exceptions should not create an open guest bypass.
C:Response-time evidence reveals excessive wait or broken fallback. By contrast, mAC-based exceptions should not create an open guest bypass.
D:Comparing both categories identifies an overbroad match. It would not resolve the documented symptom; mAC-based exceptions should not create an open guest bypass.
Question 672
A lab has printers without 802.1X supplicants but requires controlled access to an approved print service. Which misconception is most likely to obstruct a correct fix?
- Regenerate the user's password without checking that the RADIUS server already accepted the credentials
- Place unauthenticated clients directly in the full employee VLAN to simplify setup
- Disable 802.1X on the entire closet to make one printer work
- Assume identical username text always produces an identical role without policy configuration
Explanation
Correct Answer
C:Global deactivation weakens access control for unrelated workstations. Non-802.1X devices still require an accountable limited access decision.
Incorrect Answers
A:A password change cannot repair a missing authorization mapping. The relevant technical distinction is that global deactivation weakens access control for unrelated workstations.
B:An onboarding exception must not confer employee authorization. By contrast, global deactivation weakens access control for unrelated workstations.
D:Service type and NAS attributes can affect authorization rules. Here, however, global deactivation weakens access control for unrelated workstations.
Question 673
A lab has printers without 802.1X supplicants but requires controlled access to an approved print service. What precaution is most important before the change is expanded?
- Provide redundant RADIUS endpoints with monitored response health
- Maintain a device inventory and require a sponsor for each MAB exception
- Monitor CoA errors and keep an authorized recovery workflow
- Test primary and secondary outages before the new semester begins
Explanation
Correct Answer
B:MAC identities can be spoofed and must be governed. MAC-based exceptions should not create an open guest bypass.
Incorrect Answers
A:Availability improvements should not undermine access restrictions. The relevant technical distinction is that mAC identities can be spoofed and must be governed.
C:Failed changes should not leave privilege beyond its intended period. In this situation, mAC identities can be spoofed and must be governed.
D:Authentication latency can make large groups think the WLAN is down. Here, however, mAC identities can be spoofed and must be governed.
Question 674
An employee device migrates from Wi-Fi to wired access and unexpectedly receives a different security role. Which configuration decision most directly resolves the situation?
- Align identity policy and role-mapping intent across wired and wireless enforcement points
- Configure 802.1X on the switch with RADIUS and the approved role or VLAN attributes
- Revoke the lost device certificate and ensure the authentication policy checks revocation
- Use MAC authentication bypass with a restricted printer role where supported
Explanation
Correct Answer
A:The same user may otherwise get inconsistent access by transport. A cross-medium test reveals mapping differences.
Incorrect Answers
B:Central identity decisions can determine the client's authorized network segment. Here, however, the same user may otherwise get inconsistent access by transport.
C:Credential removal must take effect before expiry for lost devices. It would not resolve the documented symptom; the same user may otherwise get inconsistent access by transport.
D:Non-802.1X devices still require an accountable limited access decision. In this situation, the same user may otherwise get inconsistent access by transport.
Question 675
An employee device migrates from Wi-Fi to wired access and unexpectedly receives a different security role. Which check most directly demonstrates the desired network behavior?
- Inspect a permitted and denied administrator command/session along with AAA logs
- Connect an enrolled and an unknown projector and inspect the resulting port session roles
- Check policy rule hits and the resulting enforced role for student and teacher test accounts
- Compare RADIUS policies and effective roles for the same identity on both networks
Explanation
Correct Answer
D:A cross-medium test reveals mapping differences. The same user may otherwise get inconsistent access by transport.
Incorrect Answers
A:Login success alone does not prove command authorization. In this situation, a cross-medium test reveals mapping differences.
B:The comparison confirms the inventory boundary actually controls access. By contrast, a cross-medium test reveals mapping differences.
C:Comparing both categories identifies an overbroad match. It would not resolve the documented symptom; a cross-medium test reveals mapping differences.
Question 676
An employee device migrates from Wi-Fi to wired access and unexpectedly receives a different security role. Which assumption would be most misleading when investigating this situation?
- Assume identical username text always produces an identical role without policy configuration
- Disable 802.1X globally instead of correcting the RADIUS trust relationship
- Accept any MAC address from a projector vendor's OUI into the trusted role
- Assign all authenticated devices to one unrestricted VLAN without checking returned authorization
Explanation
Correct Answer
A:Service type and NAS attributes can affect authorization rules. The same user may otherwise get inconsistent access by transport.
Incorrect Answers
B:Broad bypass trades an administrative error for widespread exposure. It would not resolve the documented symptom; service type and NAS attributes can affect authorization rules.
C:Vendor prefixes do not guarantee that a device is owned or approved. The relevant technical distinction is that service type and NAS attributes can affect authorization rules.
D:Authentication does not automatically mean equal network privileges. By contrast, service type and NAS attributes can affect authorization rules.
Question 677
An employee device migrates from Wi-Fi to wired access and unexpectedly receives a different security role. Which safeguard best reduces the deployment risk in this case?
- Document expected transport-specific exceptions and retest after policy changes
- Require a controlled exception with owner approval for critical devices
- Test primary and secondary outages before the new semester begins
- Set ownership, replacement and decommission processes for the registry
Explanation
Correct Answer
A:Controlled differences are acceptable only when intentional. A cross-medium test reveals mapping differences.
Incorrect Answers
B:Safety-sensitive endpoints deserve reliable policy governance. By contrast, controlled differences are acceptable only when intentional.
C:Authentication latency can make large groups think the WLAN is down. The relevant technical distinction is that controlled differences are acceptable only when intentional.
D:Inventory drift can weaken a MAC-based control. Here, however, controlled differences are acceptable only when intentional.
Question 678
A RADIUS server becomes unreachable, and a campus switch allows all new wired clients onto a privileged VLAN. What is the most appropriate first technical change?
- Check the RADIUS policy match and returned attributes along with the switch's enforcement state
- Configure a restricted failure-role or safe fail-closed behavior according to business policy
- Align identity policy and role-mapping intent across wired and wireless enforcement points
- Integrate supported TACACS+ or RADIUS administrator authentication with appropriate role mapping
Explanation
Correct Answer
B:Loss of central identity should not become automatic privilege escalation. Failure-mode behavior must be observed, not inferred from nominal success.
Incorrect Answers
A:Credential acceptance can be followed by an incorrect authorization decision. The relevant technical distinction is that loss of central identity should not become automatic privilege escalation.
C:The same user may otherwise get inconsistent access by transport. In this situation, loss of central identity should not become automatic privilege escalation.
D:Central AAA can unify identity decisions and accountability for device administration. Here, however, loss of central identity should not become automatic privilege escalation.
Question 679
A RADIUS server becomes unreachable, and a campus switch allows all new wired clients onto a privileged VLAN. Which observation would best verify that the intended behavior is working?
- Probe DNS and an employee-record destination from a test guest identity
- Check policy rule hits and the resulting enforced role for student and teacher test accounts
- Simulate a server outage and inspect the fallback role for a new unknown endpoint
- Attempt a safe revocation test and inspect rejection logs
Explanation
Correct Answer
C:Failure-mode behavior must be observed, not inferred from nominal success. Loss of central identity should not become automatic privilege escalation.
Incorrect Answers
A:Both an allowed and denied test are needed to prove policy. Here, however, failure-mode behavior must be observed, not inferred from nominal success.
B:Comparing both categories identifies an overbroad match. In this situation, failure-mode behavior must be observed, not inferred from nominal success.
D:A published revocation record alone does not prove the access service reads it. It would not resolve the documented symptom; failure-mode behavior must be observed, not inferred from nominal success.
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?
- Turn off TLS server-name and certificate verification on every endpoint
- Accept any MAC address from a projector vendor's OUI into the trusted role
- Treat every AAA timeout as explicit authorization to the most trusted subnet
- 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.
HPE Network Campus Access Professional (HPE7-A01) Practice Tests