McAfee-Secured Website

Exam Bundle

Exam Code: HPE7-A08

Exam Name HPE Network Switching Professional

Certification Provider: HP

Corresponding Certification: HPE Aruba Networking Certified Professional - Switching

HP HPE7-A08 Bundle $19.99

100% HP HPE7-A08 Guaranteed Success With Testking Training Materials

Get Real HPE7-A08 Exam Questions & Expert Verified Answers as Experienced on the Real Exam!

  • Questions & Answers

    HPE7-A08 Questions & Answers

    172 Questions & Answers

    The ultimate exam preparation tool, Questions & Answers mirrors the actual HPE7-A08 exam while allowing you to hone and measure every aspect of your test-taking ability.

  • Study Guide

    HPE7-A08 Study Guide

    794 PDF Pages

    Developed by industry experts, this 794-page guide spells out in painstaking detail all of the information you need to ace HPE7-A08 exam.

HPE Network Switching Professional (HPE7-A08) Practice Tests

Satisfaction Guaranteed

Money Back Guarantee

Testking provides hassle-free money back guarantee with our products. That is because we have 100% trust in the abilities of our professional and experience product team, and our record is a proof of that.

99.6% PASS RATE
Total Cost: $154.98
Bundle Price: $134.99

Purchase Individually

  • Questions & Answers

    Questions & Answers

    172 Questions

    $124.99
  • Study Guide

    Study Guide

    794 PDF Pages

    $29.99

HP HPE7-A08 Practice Test 24

Question 230

At Fairmont Logistics, the distribution-center switching team is preparing a warehouse device rollout. The operational constraint is critical handheld scanner uptime. A production-readiness reviewer asks for proof addressing: A video VLAN floods all switch ports with a multicast stream although only some hosts joined. Which result BEST demonstrates that this specific issue was resolved?

  1. Receiver memberships persist across query intervals and multicast delivery remains stable.
  2. A cross-subnet test receiver obtains the intended multicast group while unrelated segments remain unaffected.
  3. The intended members join a healthy single VSF stack with correct member roles.
  4. Only member ports and required router-facing ports receive the multicast traffic during observation.

Explanation

Correct Answer

D:

Only member ports and required router-facing ports receive the multicast traffic during observation. This is the relevant acceptance observation for the reported issue: A video VLAN floods all switch ports with a multicast stream although only some hosts joined. The intended corrective choice is: Enable and validate IGMP snooping with correct multicast group membership on the receiver VLAN. At Fairmont Logistics, this outcome verifies actual operation under critical handheld scanner uptime, rather than only a ticket marked complete.

Incorrect Answers

A:

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 A video VLAN floods all switch ports with a multicast stream although only some hosts joined. The decisive result for Fairmont Logistics must instead be: Only member ports and required router-facing ports receive the multicast traffic during observation.

B:

A cross-subnet test receiver obtains the intended multicast group while unrelated segments remain unaffected. Such an observation would verify a separate issue: Receivers in another routed subnet cannot join an allowed multicast source despite working unicast routing. It would follow the distinct action: Use a supported multicast routing design such as PIM with correct rendezvous/source reachability where required. Here the reported failure is A video VLAN floods all switch ports with a multicast stream although only some hosts joined. The decisive result for Fairmont Logistics must instead be: Only member ports and required router-facing ports receive the multicast traffic during observation.

C:

The intended members join a healthy single VSF stack with correct member roles. Such an observation would verify a separate issue: An access layer needs one logical stack of compatible CX members with dedicated stacking links. It would follow the distinct action: Build a supported VSF topology with validated member identity and links. Here the reported failure is A video VLAN floods all switch ports with a multicast stream although only some hosts joined. The decisive result for Fairmont Logistics must instead be: Only member ports and required router-facing ports receive the multicast traffic during observation.

Question 231

At Pine Valley Telecom, the provider infrastructure team is preparing a regional hub modernization. The operational constraint is planned fault-domain isolation. The network investigation identifies this condition: A video VLAN floods all switch ports with a multicast stream although only some hosts joined. Which action BEST corrects the stated problem?

  1. Provide a suitable IGMP querier or multicast router for the VLAN under the supported design.
  2. Enable and validate IGMP snooping with correct multicast group membership on the receiver VLAN.
  3. Set each access port's intended VLAN membership and verify MAC learning by VLAN.
  4. Use a supported multicast routing design such as PIM with correct rendezvous/source reachability where required.

Explanation

Correct Answer

B:

Enable and validate IGMP snooping with correct multicast group membership on the receiver VLAN. This response directly addresses the observed condition: A video VLAN floods all switch ports with a multicast stream although only some hosts joined. For Pine Valley Telecom during a regional hub modernization, the decisive check is not merely that a configuration was entered: Only member ports and required router-facing ports receive the multicast traffic during observation. That evidence connects the proposed correction to measurable forwarding or management behavior.

Incorrect Answers

A:

Provide a suitable IGMP querier or multicast router for the VLAN under the supported design. That relates to a different fault: IGMP membership entries disappear on a standalone VLAN because no device sends periodic membership queries. The incident in the scenario is instead: A video VLAN floods all switch ports with a multicast stream although only some hosts joined. Changing the unrelated setting does not establish the required repair at Pine Valley Telecom; the relevant confirmation would be: Only member ports and required router-facing ports receive the multicast traffic during observation.

C:

Set each access port's intended VLAN membership and verify MAC learning by VLAN. That relates to a different fault: Two hosts in different access VLANs appear on ports configured in the same untagged VLAN accidentally. The incident in the scenario is instead: A video VLAN floods all switch ports with a multicast stream although only some hosts joined. Changing the unrelated setting does not establish the required repair at Pine Valley Telecom; the relevant confirmation would be: Only member ports and required router-facing ports receive the multicast traffic during observation.

D:

Use a supported multicast routing design such as PIM with correct rendezvous/source reachability where required. That relates to a different fault: Receivers in another routed subnet cannot join an allowed multicast source despite working unicast routing. The incident in the scenario is instead: A video VLAN floods all switch ports with a multicast stream although only some hosts joined. Changing the unrelated setting does not establish the required repair at Pine Valley Telecom; the relevant confirmation would be: Only member ports and required router-facing ports receive the multicast traffic during observation.

Question 232

At Pine Valley Telecom, the provider infrastructure team is preparing a regional hub modernization. The operational constraint is planned fault-domain isolation. The owner reports that the correction is complete for this issue: A video VLAN floods all switch ports with a multicast stream although only some hosts joined. Which result BEST demonstrates that this specific issue was resolved?

  1. A cross-subnet test receiver obtains the intended multicast group while unrelated segments remain unaffected.
  2. Central displays one intended managed stack and its member inventory with consistent configuration state.
  3. Only member ports and required router-facing ports receive the multicast traffic during observation.
  4. Receiver memberships persist across query intervals and multicast delivery remains stable.

Explanation

Correct Answer

C:

Only member ports and required router-facing ports receive the multicast traffic during observation. This is the relevant acceptance observation for the reported issue: A video VLAN floods all switch ports with a multicast stream although only some hosts joined. The intended corrective choice is: Enable and validate IGMP snooping with correct multicast group membership on the receiver VLAN. At Pine Valley Telecom, this outcome verifies actual operation under planned fault-domain isolation, rather than only a ticket marked complete.

Incorrect Answers

A:

A cross-subnet test receiver obtains the intended multicast group while unrelated segments remain unaffected. Such an observation would verify a separate issue: Receivers in another routed subnet cannot join an allowed multicast source despite working unicast routing. It would follow the distinct action: Use a supported multicast routing design such as PIM with correct rendezvous/source reachability where required. Here the reported failure is A video VLAN floods all switch ports with a multicast stream although only some hosts joined. The decisive result for Pine Valley Telecom must instead be: Only member ports and required router-facing ports receive the multicast traffic during observation.

B:

Central displays one intended managed stack and its member inventory with consistent configuration state. Such an observation would verify a separate issue: An organization wants Aruba Central to manage a pre-existing VSF stack but attempts to enroll each member independently as a separate logical switch. It would follow the distinct action: Onboard the VSF logical stack according to the supported Central conductor/member workflow. Here the reported failure is A video VLAN floods all switch ports with a multicast stream although only some hosts joined. The decisive result for Pine Valley Telecom must instead be: Only member ports and required router-facing ports receive the multicast traffic during observation.

D:

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 A video VLAN floods all switch ports with a multicast stream although only some hosts joined. The decisive result for Pine Valley Telecom must instead be: Only member ports and required router-facing ports receive the multicast traffic during observation.

Question 233

At Timberline Foods, the supply-chain access network team is preparing a facility rollout. The operational constraint is defined service-level measurements. The site acceptance review finds: IGMP membership entries disappear on a standalone VLAN because no device sends periodic membership queries. Which action BEST corrects the stated problem?

  1. Enable and validate IGMP snooping with correct multicast group membership on the receiver VLAN.
  2. Use a supported multicast routing design such as PIM with correct rendezvous/source reachability where required.
  3. Provide a suitable IGMP querier or multicast router for the VLAN under the supported design.
  4. Use the vendor-supported DAC or transceiver/cable combination for the specified distance and interface.

Explanation

Correct Answer

C:

Provide a suitable IGMP querier or multicast router for the VLAN under the supported design. This response directly addresses the observed condition: IGMP membership entries disappear on a standalone VLAN because no device sends periodic membership queries. For Timberline Foods during a facility rollout, the decisive check is not merely that a configuration was entered: Receiver memberships persist across query intervals and multicast delivery remains stable. That evidence connects the proposed correction to measurable forwarding or management behavior.

Incorrect Answers

A:

Enable and validate IGMP snooping with correct multicast group membership on the receiver VLAN. That relates to a different fault: A video VLAN floods all switch ports with a multicast stream although only some hosts joined. The incident in the scenario is instead: IGMP membership entries disappear on a standalone VLAN because no device sends periodic membership queries. Changing the unrelated setting does not establish the required repair at Timberline Foods; the relevant confirmation would be: Receiver memberships persist across query intervals and multicast delivery remains stable.

B:

Use a supported multicast routing design such as PIM with correct rendezvous/source reachability where required. That relates to a different fault: Receivers in another routed subnet cannot join an allowed multicast source despite working unicast routing. The incident in the scenario is instead: IGMP membership entries disappear on a standalone VLAN because no device sends periodic membership queries. Changing the unrelated setting does not establish the required repair at Timberline Foods; the relevant confirmation would be: Receiver memberships persist across query intervals and multicast delivery remains stable.

D:

Use the vendor-supported DAC or transceiver/cable combination for the specified distance and interface. That relates to a different fault: Two data-center switches must connect at short range but the purchasing team orders an optic/DAC combination incompatible with the platform. The incident in the scenario is instead: IGMP membership entries disappear on a standalone VLAN because no device sends periodic membership queries. Changing the unrelated setting does not establish the required repair at Timberline Foods; the relevant confirmation would be: Receiver memberships persist across query intervals and multicast delivery remains stable.

Question 234

At Timberline Foods, the supply-chain access network team is preparing a facility rollout. The operational constraint is defined service-level measurements. A production-readiness reviewer asks for proof addressing: IGMP membership entries disappear on a standalone VLAN because no device sends periodic membership queries. Which result BEST demonstrates that this specific issue was resolved?

  1. The backup flow conforms to its configured rate and higher-priority traffic remains within service thresholds.
  2. Only member ports and required router-facing ports receive the multicast traffic during observation.
  3. A cross-subnet test receiver obtains the intended multicast group while unrelated segments remain unaffected.
  4. Receiver memberships persist across query intervals and multicast delivery remains stable.

Explanation

Correct Answer

D:

Receiver memberships persist across query intervals and multicast delivery remains stable. This is the relevant acceptance observation for the reported issue: IGMP membership entries disappear on a standalone VLAN because no device sends periodic membership queries. The intended corrective choice is: Provide a suitable IGMP querier or multicast router for the VLAN under the supported design. At Timberline Foods, this outcome verifies actual operation under defined service-level measurements, rather than only a ticket marked complete.

Incorrect Answers

A:

The backup flow conforms to its configured rate and higher-priority traffic remains within service thresholds. Such an observation would verify a separate issue: A low-value backup service saturates a link and needs a hard rate cap rather than preferential scheduling. It would follow the distinct action: Use a suitable policer or shaper according to the required rate and buffering behavior. Here the reported failure is IGMP membership entries disappear on a standalone VLAN because no device sends periodic membership queries. The decisive result for Timberline Foods must instead be: Receiver memberships persist across query intervals and multicast delivery remains stable.

B:

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 IGMP membership entries disappear on a standalone VLAN because no device sends periodic membership queries. The decisive result for Timberline Foods must instead be: Receiver memberships persist across query intervals and multicast delivery remains stable.

C:

A cross-subnet test receiver obtains the intended multicast group while unrelated segments remain unaffected. Such an observation would verify a separate issue: Receivers in another routed subnet cannot join an allowed multicast source despite working unicast routing. It would follow the distinct action: Use a supported multicast routing design such as PIM with correct rendezvous/source reachability where required. Here the reported failure is IGMP membership entries disappear on a standalone VLAN because no device sends periodic membership queries. The decisive result for Timberline Foods must instead be: Receiver memberships persist across query intervals and multicast delivery remains stable.

Question 235

At Juniper Hospitality, the guest-services engineering group is preparing a high-season network readiness test. The operational constraint is guest access isolated from employee services. The network investigation identifies this condition: IGMP membership entries disappear on a standalone VLAN because no device sends periodic membership queries. Which action BEST corrects the stated problem?

  1. Configure a supported Layer 3 interface and assigned subnet rather than keeping it in access VLAN mode.
  2. Provide a suitable IGMP querier or multicast router for the VLAN under the supported design.
  3. Use a supported multicast routing design such as PIM with correct rendezvous/source reachability where required.
  4. Enable and validate IGMP snooping with correct multicast group membership on the receiver VLAN.

Explanation

Correct Answer

B:

Provide a suitable IGMP querier or multicast router for the VLAN under the supported design. This response directly addresses the observed condition: IGMP membership entries disappear on a standalone VLAN because no device sends periodic membership queries. For Juniper Hospitality during a high-season network readiness test, the decisive check is not merely that a configuration was entered: Receiver memberships persist across query intervals and multicast delivery remains stable. That evidence connects the proposed correction to measurable forwarding or management behavior.

Incorrect Answers

A:

Configure a supported Layer 3 interface and assigned subnet rather than keeping it in access VLAN mode. That relates to a different fault: A switch-to-router handoff requires a routed point-to-point connection, not a bridged access port. The incident in the scenario is instead: IGMP membership entries disappear on a standalone VLAN because no device sends periodic membership queries. Changing the unrelated setting does not establish the required repair at Juniper Hospitality; the relevant confirmation would be: Receiver memberships persist across query intervals and multicast delivery remains stable.

C:

Use a supported multicast routing design such as PIM with correct rendezvous/source reachability where required. That relates to a different fault: Receivers in another routed subnet cannot join an allowed multicast source despite working unicast routing. The incident in the scenario is instead: IGMP membership entries disappear on a standalone VLAN because no device sends periodic membership queries. Changing the unrelated setting does not establish the required repair at Juniper Hospitality; the relevant confirmation would be: Receiver memberships persist across query intervals and multicast delivery remains stable.

D:

Enable and validate IGMP snooping with correct multicast group membership on the receiver VLAN. That relates to a different fault: A video VLAN floods all switch ports with a multicast stream although only some hosts joined. The incident in the scenario is instead: IGMP membership entries disappear on a standalone VLAN because no device sends periodic membership queries. Changing the unrelated setting does not establish the required repair at Juniper Hospitality; the relevant confirmation would be: Receiver memberships persist across query intervals and multicast delivery remains stable.

Question 236

At Juniper Hospitality, the guest-services engineering group is preparing a high-season network readiness test. The operational constraint is guest access isolated from employee services. The owner reports that the correction is complete for this issue: IGMP membership entries disappear on a standalone VLAN because no device sends periodic membership queries. 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 cross-subnet test receiver obtains the intended multicast group while unrelated segments remain unaffected.
  4. Both sides report a stable negotiated link with supported optics and acceptable signal levels.

Explanation

Correct Answer

B:

Receiver memberships persist across query intervals and multicast delivery remains stable. This is the relevant acceptance observation for the reported issue: IGMP membership entries disappear on a standalone VLAN because no device sends periodic membership queries. The intended corrective choice is: Provide a suitable IGMP querier or multicast router for the VLAN under the supported design. At Juniper Hospitality, this outcome verifies actual operation under guest access isolated from employee services, 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 IGMP membership entries disappear on a standalone VLAN because no device sends periodic membership queries. The decisive result for Juniper Hospitality must instead be: Receiver memberships persist across query intervals and multicast delivery remains stable.

C:

A cross-subnet test receiver obtains the intended multicast group while unrelated segments remain unaffected. Such an observation would verify a separate issue: Receivers in another routed subnet cannot join an allowed multicast source despite working unicast routing. It would follow the distinct action: Use a supported multicast routing design such as PIM with correct rendezvous/source reachability where required. Here the reported failure is IGMP membership entries disappear on a standalone VLAN because no device sends periodic membership queries. The decisive result for Juniper Hospitality must instead be: Receiver memberships persist across query intervals and multicast delivery remains stable.

D:

Both sides report a stable negotiated link with supported optics and acceptable signal levels. Such an observation would verify a separate issue: An uplink module fits physically but fails to establish a link because the optic speed is unsupported on the port. It would follow the distinct action: Check transceiver compatibility, supported speed and optical media rather than assuming physical fit ensures operation. Here the reported failure is IGMP membership entries disappear on a standalone VLAN because no device sends periodic membership queries. The decisive result for Juniper Hospitality must instead be: Receiver memberships persist across query intervals and multicast delivery remains stable.

Question 237

At Northpoint Health, the remote-clinic systems team is preparing a rural site commissioning project. The operational constraint is remote support and access restrictions. The site acceptance review finds: Receivers in another routed subnet cannot join an allowed multicast source despite working unicast routing. Which action BEST corrects the stated problem?

  1. Enable and validate IGMP snooping with correct multicast group membership on the receiver VLAN.
  2. Map the wired gateway-facing VLANs, routing and ACL requirements to the supported mobility architecture.
  3. Use a supported multicast routing design such as PIM with correct rendezvous/source reachability where required.
  4. Provide a suitable IGMP querier or multicast router for the VLAN under the supported design.

Explanation

Correct Answer

C:

Use a supported multicast routing design such as PIM with correct rendezvous/source reachability where required. This response directly addresses the observed condition: Receivers in another routed subnet cannot join an allowed multicast source despite working unicast routing. For Northpoint Health during a rural site commissioning project, the decisive check is not merely that a configuration was entered: A cross-subnet test receiver obtains the intended multicast group while unrelated segments remain unaffected. That evidence connects the proposed correction to measurable forwarding or management behavior.

Incorrect Answers

A:

Enable and validate IGMP snooping with correct multicast group membership on the receiver VLAN. That relates to a different fault: A video VLAN floods all switch ports with a multicast stream although only some hosts joined. The incident in the scenario is instead: Receivers in another routed subnet cannot join an allowed multicast source despite working unicast routing. Changing the unrelated setting does not establish the required repair at Northpoint Health; the relevant confirmation would be: A cross-subnet test receiver obtains the intended multicast group while unrelated segments remain unaffected.

B:

Map the wired gateway-facing VLANs, routing and ACL requirements to the supported mobility architecture. That relates to a different fault: A wireless access gateway and wired fabric cannot pass expected AP-management traffic due to missing VLAN/routed handoff. The incident in the scenario is instead: Receivers in another routed subnet cannot join an allowed multicast source despite working unicast routing. Changing the unrelated setting does not establish the required repair at Northpoint Health; the relevant confirmation would be: A cross-subnet test receiver obtains the intended multicast group while unrelated segments remain unaffected.

D:

Provide a suitable IGMP querier or multicast router for the VLAN under the supported design. That relates to a different fault: IGMP membership entries disappear on a standalone VLAN because no device sends periodic membership queries. The incident in the scenario is instead: Receivers in another routed subnet cannot join an allowed multicast source despite working unicast routing. Changing the unrelated setting does not establish the required repair at Northpoint Health; the relevant confirmation would be: A cross-subnet test receiver obtains the intended multicast group while unrelated segments remain unaffected.

Question 238

At Northpoint Health, the remote-clinic systems team is preparing a rural site commissioning project. The operational constraint is remote support and access restrictions. A production-readiness reviewer asks for proof addressing: 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. The two routed interfaces exchange IP packets across the point-to-point subnet.
  2. Only member ports and required router-facing ports receive the multicast traffic during observation.
  3. A cross-subnet test receiver obtains the intended multicast group while unrelated segments remain unaffected.
  4. Receiver memberships persist across query intervals and multicast delivery remains stable.

Explanation

Correct Answer

C:

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 Northpoint Health, this outcome verifies actual operation under remote support and access restrictions, rather than only a ticket marked complete.

Incorrect Answers

A:

The two routed interfaces exchange IP packets across the point-to-point subnet. Such an observation would verify a separate issue: A switch-to-router handoff requires a routed point-to-point connection, not a bridged access port. It would follow the distinct action: Configure a supported Layer 3 interface and assigned subnet rather than keeping it in access VLAN mode. Here the reported failure is Receivers in another routed subnet cannot join an allowed multicast source despite working unicast routing. The decisive result for Northpoint Health must instead be: A cross-subnet test receiver obtains the intended multicast group while unrelated segments remain unaffected.

B:

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 Northpoint Health must instead be: A cross-subnet test receiver obtains the intended multicast group while unrelated segments remain unaffected.

D:

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 Northpoint Health must instead be: A cross-subnet test receiver obtains the intended multicast group while unrelated segments remain unaffected.

Question 239

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 network investigation identifies this condition: Receivers in another routed subnet cannot join an allowed multicast source despite working unicast routing. Which action BEST corrects the stated problem?

  1. Enable and validate IGMP snooping with correct multicast group membership on the receiver VLAN.
  2. Build a supported VSF topology with validated member identity and links.
  3. Provide a suitable IGMP querier or multicast router for the VLAN under the supported design.
  4. Use a supported multicast routing design such as PIM with correct rendezvous/source reachability where required.

Explanation

Correct Answer

D:

Use a supported multicast routing design such as PIM with correct rendezvous/source reachability where required. This response directly addresses the observed condition: Receivers in another routed subnet cannot join an allowed multicast source despite working unicast routing. For Dunhaven University during a multi-building classroom network upgrade, the decisive check is not merely that a configuration was entered: A cross-subnet test receiver obtains the intended multicast group while unrelated segments remain unaffected. That evidence connects the proposed correction to measurable forwarding or management behavior.

Incorrect Answers

A:

Enable and validate IGMP snooping with correct multicast group membership on the receiver VLAN. That relates to a different fault: A video VLAN floods all switch ports with a multicast stream although only some hosts joined. The incident in the scenario is instead: Receivers in another routed subnet cannot join an allowed multicast source despite working unicast routing. Changing the unrelated setting does not establish the required repair at Dunhaven University; the relevant confirmation would be: A cross-subnet test receiver obtains the intended multicast group while unrelated segments remain unaffected.

B:

Build a supported VSF topology with validated member identity and links. That relates to a different fault: An access layer needs one logical stack of compatible CX members with dedicated stacking links. The incident in the scenario is instead: Receivers in another routed subnet cannot join an allowed multicast source despite working unicast routing. Changing the unrelated setting does not establish the required repair at Dunhaven University; the relevant confirmation would be: A cross-subnet test receiver obtains the intended multicast group while unrelated segments remain unaffected.

C:

Provide a suitable IGMP querier or multicast router for the VLAN under the supported design. That relates to a different fault: IGMP membership entries disappear on a standalone VLAN because no device sends periodic membership queries. The incident in the scenario is instead: Receivers in another routed subnet cannot join an allowed multicast source despite working unicast routing. Changing the unrelated setting does not establish the required repair at Dunhaven University; the relevant confirmation would be: A cross-subnet test receiver obtains the intended multicast group while unrelated segments remain unaffected.

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.