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Exam Code: HPE7-A08

Exam Name HPE Network Switching Professional

Certification Provider: HP

Corresponding Certification: HPE Aruba Networking Certified Professional - Switching

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HP HPE7-A08 Practice Test 25

Question 240

At Dunhaven University, the campus systems team is preparing a multi-building classroom network upgrade. The operational constraint is classroom Wi-Fi and VoIP availability. The owner reports that the correction is complete for this issue: Receivers in another routed subnet cannot join an allowed multicast source despite working unicast routing. Which result BEST demonstrates that this specific issue was resolved?

  1. Only member ports and required router-facing ports receive the multicast traffic during observation.
  2. Receiver memberships persist across query intervals and multicast delivery remains stable.
  3. A management test permits authorized SSH and rejects unapproved insecure sessions.
  4. A cross-subnet test receiver obtains the intended multicast group while unrelated segments remain unaffected.

Explanation

Correct Answer

D:

A cross-subnet test receiver obtains the intended multicast group while unrelated segments remain unaffected. This is the relevant acceptance observation for the reported issue: Receivers in another routed subnet cannot join an allowed multicast source despite working unicast routing. The intended corrective choice is: Use a supported multicast routing design such as PIM with correct rendezvous/source reachability where required. At Dunhaven University, this outcome verifies actual operation under classroom Wi-Fi and VoIP availability, rather than only a ticket marked complete.

Incorrect Answers

A:

Only member ports and required router-facing ports receive the multicast traffic during observation. Such an observation would verify a separate issue: A video VLAN floods all switch ports with a multicast stream although only some hosts joined. It would follow the distinct action: Enable and validate IGMP snooping with correct multicast group membership on the receiver VLAN. Here the reported failure is Receivers in another routed subnet cannot join an allowed multicast source despite working unicast routing. The decisive result for Dunhaven University must instead be: A cross-subnet test receiver obtains the intended multicast group while unrelated segments remain unaffected.

B:

Receiver memberships persist across query intervals and multicast delivery remains stable. Such an observation would verify a separate issue: IGMP membership entries disappear on a standalone VLAN because no device sends periodic membership queries. It would follow the distinct action: Provide a suitable IGMP querier or multicast router for the VLAN under the supported design. Here the reported failure is Receivers in another routed subnet cannot join an allowed multicast source despite working unicast routing. The decisive result for Dunhaven University must instead be: A cross-subnet test receiver obtains the intended multicast group while unrelated segments remain unaffected.

C:

A management test permits authorized SSH and rejects unapproved insecure sessions. Such an observation would verify a separate issue: A switch is managed with shared credentials over insecure legacy protocols. It would follow the distinct action: Configure supported SSH-based management and individual authenticated accounts or AAA, disabling insecure access methods. Here the reported failure is Receivers in another routed subnet cannot join an allowed multicast source despite working unicast routing. The decisive result for Dunhaven University must instead be: A cross-subnet test receiver obtains the intended multicast group while unrelated segments remain unaffected.

Question 241

At Harborline Finance, the infrastructure security group is preparing a governed switching change. The operational constraint is least-privilege and audit retention. The site acceptance review finds: Managed employee laptops should authenticate to wired access but ports are configured for unrestricted admission. Which action BEST corrects the stated problem?

  1. Configure policy-based 802.1X with a supported RADIUS backend and defined failure behavior.
  2. Use an approved limited MAC-authentication or exception role rather than disabling authentication for the entire closet.
  3. Use DHCP snooping with trusted uplinks and untrusted edge ports, validating the trust boundary.
  4. Use authenticated role-based administration with AAA and appropriate management-plane restrictions.

Explanation

Correct Answer

A:

Configure policy-based 802.1X with a supported RADIUS backend and defined failure behavior. This response directly addresses the observed condition: Managed employee laptops should authenticate to wired access but ports are configured for unrestricted admission. For Harborline Finance during a governed switching change, the decisive check is not merely that a configuration was entered: Approved supplicants receive authorized access and unknown clients remain in the intended restricted state. That evidence connects the proposed correction to measurable forwarding or management behavior.

Incorrect Answers

B:

Use an approved limited MAC-authentication or exception role rather than disabling authentication for the entire closet. That relates to a different fault: A network printer cannot run a supplicant and keeps failing strict 802.1X admission. The incident in the scenario is instead: Managed employee laptops should authenticate to wired access but ports are configured for unrestricted admission. Changing the unrelated setting does not establish the required repair at Harborline Finance; the relevant confirmation would be: Approved supplicants receive authorized access and unknown clients remain in the intended restricted state.

C:

Use DHCP snooping with trusted uplinks and untrusted edge ports, validating the trust boundary. That relates to a different fault: An attacker on an access port sends forged DHCP replies claiming to be the default gateway server. The incident in the scenario is instead: Managed employee laptops should authenticate to wired access but ports are configured for unrestricted admission. Changing the unrelated setting does not establish the required repair at Harborline Finance; the relevant confirmation would be: Approved supplicants receive authorized access and unknown clients remain in the intended restricted state.

D:

Use authenticated role-based administration with AAA and appropriate management-plane restrictions. That relates to a different fault: A shared administrator account has full rights from every network and no centralized audit trace. The incident in the scenario is instead: Managed employee laptops should authenticate to wired access but ports are configured for unrestricted admission. Changing the unrelated setting does not establish the required repair at Harborline Finance; the relevant confirmation would be: Approved supplicants receive authorized access and unknown clients remain in the intended restricted state.

Question 242

At Harborline Finance, the infrastructure security group is preparing a governed switching change. The operational constraint is least-privilege and audit retention. A production-readiness reviewer asks for proof addressing: Managed employee laptops should authenticate to wired access but ports are configured for unrestricted admission. Which result BEST demonstrates that this specific issue was resolved?

  1. Access logs identify individual authorized operators and restricted users cannot change protected settings.
  2. A role-by-role test confirms that guests, employees and IoT devices reach only authorized services.
  3. Rogue DHCP offers from edge ports are rejected and the legitimate server lease exchange succeeds.
  4. Approved supplicants receive authorized access and unknown clients remain in the intended restricted state.

Explanation

Correct Answer

D:

Approved supplicants receive authorized access and unknown clients remain in the intended restricted state. This is the relevant acceptance observation for the reported issue: Managed employee laptops should authenticate to wired access but ports are configured for unrestricted admission. The intended corrective choice is: Configure policy-based 802.1X with a supported RADIUS backend and defined failure behavior. At Harborline Finance, this outcome verifies actual operation under least-privilege and audit retention, rather than only a ticket marked complete.

Incorrect Answers

A:

Access logs identify individual authorized operators and restricted users cannot change protected settings. Such an observation would verify a separate issue: A shared administrator account has full rights from every network and no centralized audit trace. It would follow the distinct action: Use authenticated role-based administration with AAA and appropriate management-plane restrictions. Here the reported failure is Managed employee laptops should authenticate to wired access but ports are configured for unrestricted admission. The decisive result for Harborline Finance must instead be: Approved supplicants receive authorized access and unknown clients remain in the intended restricted state.

B:

A role-by-role test confirms that guests, employees and IoT devices reach only authorized services. Such an observation would verify a separate issue: Different device roles require distinct network access policies but the switch uses one broad VLAN for everyone. It would follow the distinct action: Integrate ClearPass-derived roles or equivalent supported policy assignment and apply least-privilege segmentation. Here the reported failure is Managed employee laptops should authenticate to wired access but ports are configured for unrestricted admission. The decisive result for Harborline Finance must instead be: Approved supplicants receive authorized access and unknown clients remain in the intended restricted state.

C:

Rogue DHCP offers from edge ports are rejected and the legitimate server lease exchange succeeds. Such an observation would verify a separate issue: An attacker on an access port sends forged DHCP replies claiming to be the default gateway server. It would follow the distinct action: Use DHCP snooping with trusted uplinks and untrusted edge ports, validating the trust boundary. Here the reported failure is Managed employee laptops should authenticate to wired access but ports are configured for unrestricted admission. The decisive result for Harborline Finance must instead be: Approved supplicants receive authorized access and unknown clients remain in the intended restricted state.

Question 243

At Riverton Utilities, the operations-center network team is preparing a dispatch network revision. The operational constraint is dispatch continuity under link failure. The network investigation identifies this condition: Managed employee laptops should authenticate to wired access but ports are configured for unrestricted admission. Which action BEST corrects the stated problem?

  1. Use an approved limited MAC-authentication or exception role rather than disabling authentication for the entire closet.
  2. Use DHCP snooping with trusted uplinks and untrusted edge ports, validating the trust boundary.
  3. Integrate ClearPass-derived roles or equivalent supported policy assignment and apply least-privilege segmentation.
  4. Configure policy-based 802.1X with a supported RADIUS backend and defined failure behavior.

Explanation

Correct Answer

D:

Configure policy-based 802.1X with a supported RADIUS backend and defined failure behavior. This response directly addresses the observed condition: Managed employee laptops should authenticate to wired access but ports are configured for unrestricted admission. For Riverton Utilities during a dispatch network revision, the decisive check is not merely that a configuration was entered: Approved supplicants receive authorized access and unknown clients remain in the intended restricted state. That evidence connects the proposed correction to measurable forwarding or management behavior.

Incorrect Answers

A:

Use an approved limited MAC-authentication or exception role rather than disabling authentication for the entire closet. That relates to a different fault: A network printer cannot run a supplicant and keeps failing strict 802.1X admission. The incident in the scenario is instead: Managed employee laptops should authenticate to wired access but ports are configured for unrestricted admission. Changing the unrelated setting does not establish the required repair at Riverton Utilities; the relevant confirmation would be: Approved supplicants receive authorized access and unknown clients remain in the intended restricted state.

B:

Use DHCP snooping with trusted uplinks and untrusted edge ports, validating the trust boundary. That relates to a different fault: An attacker on an access port sends forged DHCP replies claiming to be the default gateway server. The incident in the scenario is instead: Managed employee laptops should authenticate to wired access but ports are configured for unrestricted admission. Changing the unrelated setting does not establish the required repair at Riverton Utilities; the relevant confirmation would be: Approved supplicants receive authorized access and unknown clients remain in the intended restricted state.

C:

Integrate ClearPass-derived roles or equivalent supported policy assignment and apply least-privilege segmentation. That relates to a different fault: Different device roles require distinct network access policies but the switch uses one broad VLAN for everyone. The incident in the scenario is instead: Managed employee laptops should authenticate to wired access but ports are configured for unrestricted admission. Changing the unrelated setting does not establish the required repair at Riverton Utilities; the relevant confirmation would be: Approved supplicants receive authorized access and unknown clients remain in the intended restricted state.

Question 244

At Riverton Utilities, the operations-center network team is preparing a dispatch network revision. The operational constraint is dispatch continuity under link failure. The owner reports that the correction is complete for this issue: Managed employee laptops should authenticate to wired access but ports are configured for unrestricted admission. Which result BEST demonstrates that this specific issue was resolved?

  1. Approved supplicants receive authorized access and unknown clients remain in the intended restricted state.
  2. A role-by-role test confirms that guests, employees and IoT devices reach only authorized services.
  3. Access logs identify individual authorized operators and restricted users cannot change protected settings.
  4. Packet tests show needed DNS exchanges work and prohibited flows are denied at the intended interface.

Explanation

Correct Answer

A:

Approved supplicants receive authorized access and unknown clients remain in the intended restricted state. This is the relevant acceptance observation for the reported issue: Managed employee laptops should authenticate to wired access but ports are configured for unrestricted admission. The intended corrective choice is: Configure policy-based 802.1X with a supported RADIUS backend and defined failure behavior. At Riverton Utilities, this outcome verifies actual operation under dispatch continuity under link failure, rather than only a ticket marked complete.

Incorrect Answers

B:

A role-by-role test confirms that guests, employees and IoT devices reach only authorized services. Such an observation would verify a separate issue: Different device roles require distinct network access policies but the switch uses one broad VLAN for everyone. It would follow the distinct action: Integrate ClearPass-derived roles or equivalent supported policy assignment and apply least-privilege segmentation. Here the reported failure is Managed employee laptops should authenticate to wired access but ports are configured for unrestricted admission. The decisive result for Riverton Utilities must instead be: Approved supplicants receive authorized access and unknown clients remain in the intended restricted state.

C:

Access logs identify individual authorized operators and restricted users cannot change protected settings. Such an observation would verify a separate issue: A shared administrator account has full rights from every network and no centralized audit trace. It would follow the distinct action: Use authenticated role-based administration with AAA and appropriate management-plane restrictions. Here the reported failure is Managed employee laptops should authenticate to wired access but ports are configured for unrestricted admission. The decisive result for Riverton Utilities must instead be: Approved supplicants receive authorized access and unknown clients remain in the intended restricted state.

D:

Packet tests show needed DNS exchanges work and prohibited flows are denied at the intended interface. Such an observation would verify a separate issue: An interface ACL blocks legitimate DNS replies because its direction and permit order were not reviewed. It would follow the distinct action: Place ordered ACL entries on the appropriate ingress or egress path with explicit required traffic permits. Here the reported failure is Managed employee laptops should authenticate to wired access but ports are configured for unrestricted admission. The decisive result for Riverton Utilities must instead be: Approved supplicants receive authorized access and unknown clients remain in the intended restricted state.

Question 245

At Bluecrest Medical, the clinical network operations team is preparing a new outpatient-facility deployment. The operational constraint is uninterrupted voice and records access. The site acceptance review finds: A network printer cannot run a supplicant and keeps failing strict 802.1X admission. Which action BEST corrects the stated problem?

  1. Use authenticated role-based administration with AAA and appropriate management-plane restrictions.
  2. Use an approved limited MAC-authentication or exception role rather than disabling authentication for the entire closet.
  3. Integrate ClearPass-derived roles or equivalent supported policy assignment and apply least-privilege segmentation.
  4. Use DHCP snooping with trusted uplinks and untrusted edge ports, validating the trust boundary.

Explanation

Correct Answer

B:

Use an approved limited MAC-authentication or exception role rather than disabling authentication for the entire closet. This response directly addresses the observed condition: A network printer cannot run a supplicant and keeps failing strict 802.1X admission. For Bluecrest Medical during a new outpatient-facility deployment, the decisive check is not merely that a configuration was entered: The printer obtains only permitted access while an unknown MAC cannot inherit its rights. That evidence connects the proposed correction to measurable forwarding or management behavior.

Incorrect Answers

A:

Use authenticated role-based administration with AAA and appropriate management-plane restrictions. That relates to a different fault: A shared administrator account has full rights from every network and no centralized audit trace. The incident in the scenario is instead: A network printer cannot run a supplicant and keeps failing strict 802.1X admission. Changing the unrelated setting does not establish the required repair at Bluecrest Medical; the relevant confirmation would be: The printer obtains only permitted access while an unknown MAC cannot inherit its rights.

C:

Integrate ClearPass-derived roles or equivalent supported policy assignment and apply least-privilege segmentation. That relates to a different fault: Different device roles require distinct network access policies but the switch uses one broad VLAN for everyone. The incident in the scenario is instead: A network printer cannot run a supplicant and keeps failing strict 802.1X admission. Changing the unrelated setting does not establish the required repair at Bluecrest Medical; the relevant confirmation would be: The printer obtains only permitted access while an unknown MAC cannot inherit its rights.

D:

Use DHCP snooping with trusted uplinks and untrusted edge ports, validating the trust boundary. That relates to a different fault: An attacker on an access port sends forged DHCP replies claiming to be the default gateway server. The incident in the scenario is instead: A network printer cannot run a supplicant and keeps failing strict 802.1X admission. Changing the unrelated setting does not establish the required repair at Bluecrest Medical; the relevant confirmation would be: The printer obtains only permitted access while an unknown MAC cannot inherit its rights.

Question 246

At Bluecrest Medical, the clinical network operations team is preparing a new outpatient-facility deployment. The operational constraint is uninterrupted voice and records access. A production-readiness reviewer asks for proof addressing: A network printer cannot run a supplicant and keeps failing strict 802.1X admission. Which result BEST demonstrates that this specific issue was resolved?

  1. Rogue DHCP offers from edge ports are rejected and the legitimate server lease exchange succeeds.
  2. A role-by-role test confirms that guests, employees and IoT devices reach only authorized services.
  3. Approved supplicants receive authorized access and unknown clients remain in the intended restricted state.
  4. The printer obtains only permitted access while an unknown MAC cannot inherit its rights.

Explanation

Correct Answer

D:

The printer obtains only permitted access while an unknown MAC cannot inherit its rights. This is the relevant acceptance observation for the reported issue: A network printer cannot run a supplicant and keeps failing strict 802.1X admission. The intended corrective choice is: Use an approved limited MAC-authentication or exception role rather than disabling authentication for the entire closet. At Bluecrest Medical, this outcome verifies actual operation under uninterrupted voice and records access, rather than only a ticket marked complete.

Incorrect Answers

A:

Rogue DHCP offers from edge ports are rejected and the legitimate server lease exchange succeeds. Such an observation would verify a separate issue: An attacker on an access port sends forged DHCP replies claiming to be the default gateway server. It would follow the distinct action: Use DHCP snooping with trusted uplinks and untrusted edge ports, validating the trust boundary. Here the reported failure is A network printer cannot run a supplicant and keeps failing strict 802.1X admission. The decisive result for Bluecrest Medical must instead be: The printer obtains only permitted access while an unknown MAC cannot inherit its rights.

B:

A role-by-role test confirms that guests, employees and IoT devices reach only authorized services. Such an observation would verify a separate issue: Different device roles require distinct network access policies but the switch uses one broad VLAN for everyone. It would follow the distinct action: Integrate ClearPass-derived roles or equivalent supported policy assignment and apply least-privilege segmentation. Here the reported failure is A network printer cannot run a supplicant and keeps failing strict 802.1X admission. The decisive result for Bluecrest Medical must instead be: The printer obtains only permitted access while an unknown MAC cannot inherit its rights.

C:

Approved supplicants receive authorized access and unknown clients remain in the intended restricted state. Such an observation would verify a separate issue: Managed employee laptops should authenticate to wired access but ports are configured for unrestricted admission. It would follow the distinct action: Configure policy-based 802.1X with a supported RADIUS backend and defined failure behavior. Here the reported failure is A network printer cannot run a supplicant and keeps failing strict 802.1X admission. The decisive result for Bluecrest Medical must instead be: The printer obtains only permitted access while an unknown MAC cannot inherit its rights.

Question 247

At Lakeshore Education, the school network support crew is preparing a district-wide replacement program. The operational constraint is classroom outages kept within target. The network investigation identifies this condition: A network printer cannot run a supplicant and keeps failing strict 802.1X admission. Which action BEST corrects the stated problem?

  1. Configure policy-based 802.1X with a supported RADIUS backend and defined failure behavior.
  2. Use an approved limited MAC-authentication or exception role rather than disabling authentication for the entire closet.
  3. Use authenticated role-based administration with AAA and appropriate management-plane restrictions.
  4. Use DHCP snooping with trusted uplinks and untrusted edge ports, validating the trust boundary.

Explanation

Correct Answer

B:

Use an approved limited MAC-authentication or exception role rather than disabling authentication for the entire closet. This response directly addresses the observed condition: A network printer cannot run a supplicant and keeps failing strict 802.1X admission. For Lakeshore Education during a district-wide replacement program, the decisive check is not merely that a configuration was entered: The printer obtains only permitted access while an unknown MAC cannot inherit its rights. That evidence connects the proposed correction to measurable forwarding or management behavior.

Incorrect Answers

A:

Configure policy-based 802.1X with a supported RADIUS backend and defined failure behavior. That relates to a different fault: Managed employee laptops should authenticate to wired access but ports are configured for unrestricted admission. The incident in the scenario is instead: A network printer cannot run a supplicant and keeps failing strict 802.1X admission. Changing the unrelated setting does not establish the required repair at Lakeshore Education; the relevant confirmation would be: The printer obtains only permitted access while an unknown MAC cannot inherit its rights.

C:

Use authenticated role-based administration with AAA and appropriate management-plane restrictions. That relates to a different fault: A shared administrator account has full rights from every network and no centralized audit trace. The incident in the scenario is instead: A network printer cannot run a supplicant and keeps failing strict 802.1X admission. Changing the unrelated setting does not establish the required repair at Lakeshore Education; the relevant confirmation would be: The printer obtains only permitted access while an unknown MAC cannot inherit its rights.

D:

Use DHCP snooping with trusted uplinks and untrusted edge ports, validating the trust boundary. That relates to a different fault: An attacker on an access port sends forged DHCP replies claiming to be the default gateway server. The incident in the scenario is instead: A network printer cannot run a supplicant and keeps failing strict 802.1X admission. Changing the unrelated setting does not establish the required repair at Lakeshore Education; the relevant confirmation would be: The printer obtains only permitted access while an unknown MAC cannot inherit its rights.

Question 248

At Lakeshore Education, the school network support crew is preparing a district-wide replacement program. The operational constraint is classroom outages kept within target. The owner reports that the correction is complete for this issue: A network printer cannot run a supplicant and keeps failing strict 802.1X admission. Which result BEST demonstrates that this specific issue was resolved?

  1. The printer obtains only permitted access while an unknown MAC cannot inherit its rights.
  2. Packet tests show needed DNS exchanges work and prohibited flows are denied at the intended interface.
  3. Rogue DHCP offers from edge ports are rejected and the legitimate server lease exchange succeeds.
  4. Access logs identify individual authorized operators and restricted users cannot change protected settings.

Explanation

Correct Answer

A:

The printer obtains only permitted access while an unknown MAC cannot inherit its rights. This is the relevant acceptance observation for the reported issue: A network printer cannot run a supplicant and keeps failing strict 802.1X admission. The intended corrective choice is: Use an approved limited MAC-authentication or exception role rather than disabling authentication for the entire closet. At Lakeshore Education, this outcome verifies actual operation under classroom outages kept within target, rather than only a ticket marked complete.

Incorrect Answers

B:

Packet tests show needed DNS exchanges work and prohibited flows are denied at the intended interface. Such an observation would verify a separate issue: An interface ACL blocks legitimate DNS replies because its direction and permit order were not reviewed. It would follow the distinct action: Place ordered ACL entries on the appropriate ingress or egress path with explicit required traffic permits. Here the reported failure is A network printer cannot run a supplicant and keeps failing strict 802.1X admission. The decisive result for Lakeshore Education must instead be: The printer obtains only permitted access while an unknown MAC cannot inherit its rights.

C:

Rogue DHCP offers from edge ports are rejected and the legitimate server lease exchange succeeds. Such an observation would verify a separate issue: An attacker on an access port sends forged DHCP replies claiming to be the default gateway server. It would follow the distinct action: Use DHCP snooping with trusted uplinks and untrusted edge ports, validating the trust boundary. Here the reported failure is A network printer cannot run a supplicant and keeps failing strict 802.1X admission. The decisive result for Lakeshore Education must instead be: The printer obtains only permitted access while an unknown MAC cannot inherit its rights.

D:

Access logs identify individual authorized operators and restricted users cannot change protected settings. Such an observation would verify a separate issue: A shared administrator account has full rights from every network and no centralized audit trace. It would follow the distinct action: Use authenticated role-based administration with AAA and appropriate management-plane restrictions. Here the reported failure is A network printer cannot run a supplicant and keeps failing strict 802.1X admission. The decisive result for Lakeshore Education must instead be: The printer obtains only permitted access while an unknown MAC cannot inherit its rights.

Question 249

At Pine Valley Telecom, the provider infrastructure team is preparing a regional hub modernization. The operational constraint is planned fault-domain isolation. The site acceptance review finds: Different device roles require distinct network access policies but the switch uses one broad VLAN for everyone. Which action BEST corrects the stated problem?

  1. Use authenticated role-based administration with AAA and appropriate management-plane restrictions.
  2. Place ordered ACL entries on the appropriate ingress or egress path with explicit required traffic permits.
  3. Integrate ClearPass-derived roles or equivalent supported policy assignment and apply least-privilege segmentation.
  4. Configure policy-based 802.1X with a supported RADIUS backend and defined failure behavior.

Explanation

Correct Answer

C:

Integrate ClearPass-derived roles or equivalent supported policy assignment and apply least-privilege segmentation. This response directly addresses the observed condition: Different device roles require distinct network access policies but the switch uses one broad VLAN for everyone. For Pine Valley Telecom during a regional hub modernization, the decisive check is not merely that a configuration was entered: A role-by-role test confirms that guests, employees and IoT devices reach only authorized services. That evidence connects the proposed correction to measurable forwarding or management behavior.

Incorrect Answers

A:

Use authenticated role-based administration with AAA and appropriate management-plane restrictions. That relates to a different fault: A shared administrator account has full rights from every network and no centralized audit trace. The incident in the scenario is instead: Different device roles require distinct network access policies but the switch uses one broad VLAN for everyone. Changing the unrelated setting does not establish the required repair at Pine Valley Telecom; the relevant confirmation would be: A role-by-role test confirms that guests, employees and IoT devices reach only authorized services.

B:

Place ordered ACL entries on the appropriate ingress or egress path with explicit required traffic permits. That relates to a different fault: An interface ACL blocks legitimate DNS replies because its direction and permit order were not reviewed. The incident in the scenario is instead: Different device roles require distinct network access policies but the switch uses one broad VLAN for everyone. Changing the unrelated setting does not establish the required repair at Pine Valley Telecom; the relevant confirmation would be: A role-by-role test confirms that guests, employees and IoT devices reach only authorized services.

D:

Configure policy-based 802.1X with a supported RADIUS backend and defined failure behavior. That relates to a different fault: Managed employee laptops should authenticate to wired access but ports are configured for unrestricted admission. The incident in the scenario is instead: Different device roles require distinct network access policies but the switch uses one broad VLAN for everyone. Changing the unrelated setting does not establish the required repair at Pine Valley Telecom; the relevant confirmation would be: A role-by-role test confirms that guests, employees and IoT devices reach only authorized services.

Question 250

At Pine Valley Telecom, the provider infrastructure team is preparing a regional hub modernization. The operational constraint is planned fault-domain isolation. A production-readiness reviewer asks for proof addressing: Different device roles require distinct network access policies but the switch uses one broad VLAN for everyone. Which result BEST demonstrates that this specific issue was resolved?

  1. Approved supplicants receive authorized access and unknown clients remain in the intended restricted state.
  2. Access logs identify individual authorized operators and restricted users cannot change protected settings.
  3. A role-by-role test confirms that guests, employees and IoT devices reach only authorized services.
  4. Rogue DHCP offers from edge ports are rejected and the legitimate server lease exchange succeeds.

Explanation

Correct Answer

C:

A role-by-role test confirms that guests, employees and IoT devices reach only authorized services. This is the relevant acceptance observation for the reported issue: Different device roles require distinct network access policies but the switch uses one broad VLAN for everyone. The intended corrective choice is: Integrate ClearPass-derived roles or equivalent supported policy assignment and apply least-privilege segmentation. At Pine Valley Telecom, this outcome verifies actual operation under planned fault-domain isolation, rather than only a ticket marked complete.

Incorrect Answers

A:

Approved supplicants receive authorized access and unknown clients remain in the intended restricted state. Such an observation would verify a separate issue: Managed employee laptops should authenticate to wired access but ports are configured for unrestricted admission. It would follow the distinct action: Configure policy-based 802.1X with a supported RADIUS backend and defined failure behavior. Here the reported failure is Different device roles require distinct network access policies but the switch uses one broad VLAN for everyone. The decisive result for Pine Valley Telecom must instead be: A role-by-role test confirms that guests, employees and IoT devices reach only authorized services.

B:

Access logs identify individual authorized operators and restricted users cannot change protected settings. Such an observation would verify a separate issue: A shared administrator account has full rights from every network and no centralized audit trace. It would follow the distinct action: Use authenticated role-based administration with AAA and appropriate management-plane restrictions. Here the reported failure is Different device roles require distinct network access policies but the switch uses one broad VLAN for everyone. The decisive result for Pine Valley Telecom must instead be: A role-by-role test confirms that guests, employees and IoT devices reach only authorized services.

D:

Rogue DHCP offers from edge ports are rejected and the legitimate server lease exchange succeeds. Such an observation would verify a separate issue: An attacker on an access port sends forged DHCP replies claiming to be the default gateway server. It would follow the distinct action: Use DHCP snooping with trusted uplinks and untrusted edge ports, validating the trust boundary. Here the reported failure is Different device roles require distinct network access policies but the switch uses one broad VLAN for everyone. The decisive result for Pine Valley Telecom must instead be: A role-by-role test confirms that guests, employees and IoT devices reach only authorized services.