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HP HPE7-A08 Bundle

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 15

Question 140

At the Brookfield transport facility, a finance workstation receives the guest subnet after moving to a newly configured CX access port. How should the organization sustain the improvement?

  1. Validate trunk tagging assumptions during interface changes
  2. Retest traffic markings after endpoint software updates
  3. Validate peer parameters before routing policy deployments
  4. Audit access VLAN mappings after workstation moves

Explanation

Correct Answer

D:

The needed prevention is to audit access VLAN mappings after workstation moves. It directly sustains the original change to set the intended untagged access VLAN on the endpoint interface and verify its forwarding role. This result addresses the stated challenge at the Brookfield transport facility.

Incorrect Answers

A:

different untagged VLAN handling can leak or misdeliver management and user frames. The offered alternative applies that mechanism: Validate trunk tagging assumptions during interface changes. The reported facts point to a different controlling condition: an incorrect access VLAN places untagged endpoint frames into the wrong broadcast domain. The alternative does not directly settle the required recurrence control.

B:

Retest traffic markings after endpoint software updates. Its technical scope is explained by: a configured policy may not match traffic or may be rewritten further along the path. In this question, the decisive issue is: an incorrect access VLAN places untagged endpoint frames into the wrong broadcast domain. That is why the offered option is not the most direct recurrence control.

C:

The option states: Validate peer parameters before routing policy deployments. The source describes its associated mechanism as: BGP neighbors require compatible AS relationships and reachable transport before exchanging routes, rather than merely a monitoring or presentation issue. By contrast, the current situation is governed by: an incorrect access VLAN places untagged endpoint frames into the wrong broadcast domain. Choosing this alternative would leave the question’s specific recurrence control unresolved.

Question 141

At the Kingsford regional hospital, a tagged service VLAN disappears between two switches although the physical trunk remains up. Which approach best resolves the described issue?

  1. Set the intended untagged access VLAN on the endpoint interface and verify its forwarding role
  2. Align supported VSX active gateway configuration addresses and consistency on both peers
  3. Apply supported ingress policing or rate limiting to the guest class using realistic thresholds
  4. Permit the required tagged VLAN on the appropriate trunk or uplink interfaces at each end

Explanation

Correct Answer

D:

Permit the required tagged VLAN on the appropriate trunk or uplink interfaces at each end is the best response because an established Ethernet link does not imply all tagged VLANs are carried across it. A focused validation would establish that the controlled test host reaches its permitted peer through the end-to-end VLAN path. This result addresses the stated challenge at the Kingsford regional hospital.

Incorrect Answers

A:

Set the intended untagged access VLAN on the endpoint interface and verify its forwarding role. Its technical scope is explained by: an incorrect access VLAN places untagged endpoint frames into the wrong broadcast domain. In this question, the decisive issue is: an established Ethernet link does not imply all tagged VLANs are carried across it. That is why the offered option is not the most direct root-cause explanation.

B:

The option states: Align supported VSX active gateway configuration addresses and consistency on both peers. The source describes its associated mechanism as: dual switch gateway services require coordinated configuration to prevent inconsistent L3 forwarding; a passing acceptance check would show that a connected host preserves gateway reachability after either peer uplink fails. By contrast, the current situation is governed by: an established Ethernet link does not imply all tagged VLANs are carried across it. Choosing this alternative would leave the question’s specific root-cause explanation unresolved.

C:

Apply supported ingress policing or rate limiting to the guest class using realistic thresholds. This option is based on the following distinct technical behavior: bursting guest traffic can consume resources needed for contracted business services. The present question instead depends on this mechanism: an established Ethernet link does not imply all tagged VLANs are carried across it. That difference matters for the requested root-cause explanation.

Question 142

At the Kingsford regional hospital, a tagged service VLAN disappears between two switches although the physical trunk remains up. Which explanation best accounts for the concern?

  1. Incorrect VSF stacking links or member configuration can prevent a common logical control plane
  2. An established Ethernet link does not imply all tagged VLANs are carried across it
  3. Heavy unsolicited control traffic can contend with essential switch control functions
  4. Periodic manual inspection can miss transient fault patterns that require device-local monitoring

Explanation

Correct Answer

B:

The problem stems from the fact that an established Ethernet link does not imply all tagged VLANs are carried across it. A correct solution would permit the required tagged VLAN on the appropriate trunk or uplink interfaces at each end and check that the controlled test host reaches its permitted peer through the end-to-end VLAN path. This result addresses the stated challenge at the Kingsford regional hospital.

Incorrect Answers

A:

The option states: Incorrect VSF stacking links or member configuration can prevent a common logical control plane. By contrast, the current situation is governed by: an established Ethernet link does not imply all tagged VLANs are carried across it. Choosing this alternative would leave the question’s specific root-cause explanation unresolved.

C:

The offered alternative states: Heavy unsolicited control traffic can contend with essential switch control functions. The reported facts point to a different controlling condition: an established Ethernet link does not imply all tagged VLANs are carried across it. The alternative does not directly settle the required root-cause explanation.

D:

Periodic manual inspection can miss transient fault patterns that require device-local monitoring. In this question, the decisive issue is: an established Ethernet link does not imply all tagged VLANs are carried across it. That is why the offered option is not the most direct root-cause explanation.

Question 143

At the Kingsford regional hospital, a tagged service VLAN disappears between two switches although the physical trunk remains up. Which test result best shows the requirement is met?

  1. A tagged and untagged test confirms the intended VLAN separation across the link
  2. Neighbor state reaches Full and expected link state routes are installed
  3. The controlled test host reaches its permitted peer through the end-to-end VLAN path
  4. The registered printer receives only the expected service permissions and an unregistered MAC is rejected

Explanation

Correct Answer

C:

Because an established Ethernet link does not imply all tagged VLANs are carried across it, the required evidence must show that the controlled test host reaches its permitted peer through the end-to-end VLAN path. A healthy endpoint status alone is insufficient. This result addresses the stated challenge at the Kingsford regional hospital.

Incorrect Answers

A:

A tagged and untagged test confirms the intended VLAN separation across the link. This option is based on the following distinct technical behavior: different untagged VLAN handling can leak or misdeliver management and user frames. The present question instead depends on this mechanism: an established Ethernet link does not imply all tagged VLANs are carried across it, the required evidence must show that the controlled test host reaches its permitted peer through the end-to-end VLAN path. That difference matters for the requested acceptance evidence.

B:

area or hello mismatch on adjacent interfaces prevents normal OSPF peering, the required evidence must show that neighbor state reaches Full and expected link state routes are installed. The offered alternative applies that mechanism: Neighbor state reaches Full and expected link state routes are installed. The reported facts point to a different controlling condition: an established Ethernet link does not imply all tagged VLANs are carried across it, the required evidence must show that the controlled test host reaches its permitted peer through the end-to-end VLAN path. The alternative does not directly settle the required acceptance evidence.

D:

The option states: The registered printer receives only the expected service permissions and an unregistered MAC is rejected. The source describes its associated mechanism as: a device without an EAP supplicant cannot complete the chosen port identity protocol. By contrast, the current situation is governed by: an established Ethernet link does not imply all tagged VLANs are carried across it, the required evidence must show that the controlled test host reaches its permitted peer through the end-to-end VLAN path. Choosing this alternative would leave the question’s specific acceptance evidence unresolved.

Question 144

At the Kingsford regional hospital, a tagged service VLAN disappears between two switches although the physical trunk remains up. Which ongoing control best prevents this issue from recurring?

  1. Monitor LACP actor partner status after port changes
  2. Audit queue drops and utilization during peak periods
  3. Review trunk allowed VLAN lists during service rollout
  4. Keep approved optics and fiber testing records for each cable plant

Explanation

Correct Answer

C:

After implementation, the team should review trunk allowed VLAN lists during service rollout as the appropriate recurring safeguard against the identified issue. This result addresses the stated challenge at the Kingsford regional hospital.

Incorrect Answers

A:

it requires the team to monitor LACP actor partner status after port changes. The offered alternative applies that mechanism: Monitor LACP actor partner status after port changes. The reported facts point to a different controlling condition: an established Ethernet link does not imply all tagged VLANs are carried across it, the required evidence must show that the controlled test host reaches its permitted peer through the end-to-end VLAN path. The alternative does not directly settle the required recurrence control.

B:

Audit queue drops and utilization during peak periods. Its technical scope is explained by: a single congested best-effort queue does not protect latency-sensitive voice packets. In this question, the decisive issue is: an established Ethernet link does not imply all tagged VLANs are carried across it, the required evidence must show that the controlled test host reaches its permitted peer through the end-to-end VLAN path. That is why the offered option is not the most direct recurrence control.

D:

Keep approved optics and fiber testing records for each cable plant. This option is based on the following distinct technical behavior: mismatched optic characteristics prevent a valid light path despite correct switch configuration. The present question instead depends on this mechanism: an established Ethernet link does not imply all tagged VLANs are carried across it, the required evidence must show that the controlled test host reaches its permitted peer through the end-to-end VLAN path. That difference matters for the requested recurrence control.

Question 145

At the Yorkport technical college, two connected trunks treat untagged traffic as different VLANs causing unexpected address assignment. Which implementation choice best addresses the situation?

  1. Permit the required tagged VLAN on the appropriate trunk or uplink interfaces at each end
  2. Align approved native or untagged VLAN behavior on both ends and avoid unnecessary untagged service traffic
  3. Align supported VSX active gateway configuration addresses and consistency on both peers
  4. Set the approved trust boundary and re-mark untrusted traffic according to port and policy

Explanation

Correct Answer

B:

Align approved native or untagged VLAN behavior on both ends and avoid unnecessary untagged service traffic is the best response because different untagged VLAN handling can leak or misdeliver management and user frames. A focused validation would establish that a tagged and untagged test confirms the intended VLAN separation across the link. This result addresses the stated challenge at the Yorkport technical college.

Incorrect Answers

A:

Permit the required tagged VLAN on the appropriate trunk or uplink interfaces at each end. Its technical scope is explained by: an established Ethernet link does not imply all tagged VLANs are carried across it. In this question, the decisive issue is: different untagged VLAN handling can leak or misdeliver management and user frames. That is why the offered option is not the most direct implementation.

C:

Align supported VSX active gateway configuration addresses and consistency on both peers. This option is based on the following distinct technical behavior: dual switch gateway services require coordinated configuration to prevent inconsistent L3 forwarding; a passing acceptance check would show that a connected host preserves gateway reachability after either peer uplink fails. The present question instead depends on this mechanism: different untagged VLAN handling can leak or misdeliver management and user frames. That difference matters for the requested implementation.

D:

Set the approved trust boundary and re-mark untrusted traffic according to port and policy. The reported problem is governed by this different mechanism: different untagged VLAN handling can leak or misdeliver management and user frames. The offered choice would not address that particular implementation directly.

Question 146

At the Yorkport technical college, two connected trunks treat untagged traffic as different VLANs causing unexpected address assignment. What risk should the team identify as the primary issue?

  1. An incorrect access VLAN places untagged endpoint frames into the wrong broadcast domain
  2. Without common time and device references cross-system event timelines become ambiguous
  3. Different untagged VLAN handling can leak or misdeliver management and user frames
  4. Unsaved live changes may be lost on restart even if forwarding initially works

Explanation

Correct Answer

C:

The evidence indicates that different untagged VLAN handling can leak or misdeliver management and user frames. The appropriate response is to align approved native or untagged VLAN behavior on both ends and avoid unnecessary untagged service traffic and demonstrate that a tagged and untagged test confirms the intended VLAN separation across the link. This result addresses the stated challenge at the Yorkport technical college.

Incorrect Answers

A:

The option states: An incorrect access VLAN places untagged endpoint frames into the wrong broadcast domain. By contrast, the current situation is governed by: different untagged VLAN handling can leak or misdeliver management and user frames. Choosing this alternative would leave the question’s specific root-cause explanation unresolved.

B:

Without common time and device references cross-system event timelines become ambiguous. The present question instead depends on this mechanism: different untagged VLAN handling can leak or misdeliver management and user frames. That difference matters for the requested root-cause explanation.

D:

Unsaved live changes may be lost on restart even if forwarding initially works. In this question, the decisive issue is: different untagged VLAN handling can leak or misdeliver management and user frames. That is why the offered option is not the most direct root-cause explanation.

Question 147

At the Yorkport technical college, two connected trunks treat untagged traffic as different VLANs causing unexpected address assignment. What is the strongest acceptance test for this change?

  1. The test endpoint obtains the finance subnet while guest resources stay isolated
  2. Two test identities on the same physical access device receive different approved privileges
  3. A tagged and untagged test confirms the intended VLAN separation across the link
  4. A route lookup prefers the approved path and switches after a controlled failure

Explanation

Correct Answer

C:

This tests the real business behavior: a tagged and untagged test confirms the intended VLAN separation across the link. It specifically checks whether the risk that different untagged VLAN handling can leak or misdeliver management and user frames has been reduced. This result addresses the stated challenge at the Yorkport technical college.

Incorrect Answers

A:

The test endpoint obtains the finance subnet while guest resources stay isolated. This option is based on the following distinct technical behavior: an incorrect access VLAN places untagged endpoint frames into the wrong broadcast domain. The present question instead depends on this mechanism: different untagged VLAN handling can leak or misdeliver management and user frames. That difference matters for the requested acceptance evidence.

B:

port-only VLAN membership does not express changing identity-driven access requirements reliably, rather than merely a monitoring or presentation issue. The offered alternative applies that mechanism: Two test identities on the same physical access device receive different approved privileges. The reported facts point to a different controlling condition: different untagged VLAN handling can leak or misdeliver management and user frames. The alternative does not directly settle the required acceptance evidence.

D:

The option states: A route lookup prefers the approved path and switches after a controlled failure. The source describes its associated mechanism as: OSPF path selection follows its calculated metrics rather than business labels on ports. By contrast, the current situation is governed by: different untagged VLAN handling can leak or misdeliver management and user frames. Choosing this alternative would leave the question’s specific acceptance evidence unresolved.

Question 148

At the Yorkport technical college, two connected trunks treat untagged traffic as different VLANs causing unexpected address assignment. Which setting or practice should be reviewed in future?

  1. Periodically audit MST region digests and spanning tree changes
  2. Validate peer parameters before routing policy deployments
  3. Audit multicast routing neighbors and reverse path checks after route changes
  4. Validate trunk tagging assumptions during interface changes

Explanation

Correct Answer

D:

For the Yorkport technical college, this maintenance action preserves the fix: validate trunk tagging assumptions during interface changes. It should be revisited as the workload evolves.

Incorrect Answers

A:

mST region mismatches change topology interpretation and can select unexpected ports. The offered alternative applies that mechanism: Periodically audit MST region digests and spanning tree changes. The reported facts point to a different controlling condition: different untagged VLAN handling can leak or misdeliver management and user frames. The alternative does not directly settle the required recurrence control.

B:

Validate peer parameters before routing policy deployments. Its technical scope is explained by: BGP neighbors require compatible AS relationships and reachable transport before exchanging routes, rather than merely a monitoring or presentation issue. In this question, the decisive issue is: different untagged VLAN handling can leak or misdeliver management and user frames. That is why the offered option is not the most direct recurrence control.

C:

The option states: Audit multicast routing neighbors and reverse path checks after route changes. The source describes its associated mechanism as: IGMP local group membership does not automatically create routed multicast forwarding across VLANs. By contrast, the current situation is governed by: different untagged VLAN handling can leak or misdeliver management and user frames. Choosing this alternative would leave the question’s specific recurrence control unresolved.

Question 149

At the Nortonwood public agency, a redundant campus ring has unexpected blocking because MST regions use different names or revision mappings. Which corrective action best meets the requirement?

  1. Align the intended MST region name revision and VLAN-to-instance mapping on participating switches
  2. Set the intended untagged access VLAN on the endpoint interface and verify its forwarding role
  3. Use a governed MAC authentication fallback or equivalent device onboarding policy with restricted authorization
  4. Apply supported ingress policing or rate limiting to the guest class using realistic thresholds

Explanation

Correct Answer

A:

This is the direct HPE Aruba wired switching remedy: align the intended MST region name revision and VLAN-to-instance mapping on participating switches. The observed risk is that mST region mismatches change topology interpretation and can select unexpected ports; a passing acceptance check would show that all intended switches report matching region configuration and stable root paths. This result addresses the stated challenge at the Nortonwood public agency.

Incorrect Answers

B:

The option states: Set the intended untagged access VLAN on the endpoint interface and verify its forwarding role. The source describes its associated mechanism as: an incorrect access VLAN places untagged endpoint frames into the wrong broadcast domain. By contrast, the current situation is governed by: mST region mismatches change topology interpretation and can select unexpected ports; a passing acceptance check would show that all intended switches report matching region configuration and stable root paths. Choosing this alternative would leave the question’s specific implementation unresolved.

C:

Use a governed MAC authentication fallback or equivalent device onboarding policy with restricted authorization. This option is based on the following distinct technical behavior: a device without an EAP supplicant cannot complete the chosen port identity protocol. The present question instead depends on this mechanism: mST region mismatches change topology interpretation and can select unexpected ports; a passing acceptance check would show that all intended switches report matching region configuration and stable root paths. That difference matters for the requested implementation.

D:

bursting guest traffic can consume resources needed for contracted business services. The offered alternative applies that mechanism: Apply supported ingress policing or rate limiting to the guest class using realistic thresholds. The reported facts point to a different controlling condition: mST region mismatches change topology interpretation and can select unexpected ports; a passing acceptance check would show that all intended switches report matching region configuration and stable root paths. The alternative does not directly settle the required implementation.

Question 150

At the Nortonwood public agency, a redundant campus ring has unexpected blocking because MST regions use different names or revision mappings. Which underlying issue most directly explains this situation?

  1. MST region mismatches change topology interpretation and can select unexpected ports
  2. An incorrect access VLAN places untagged endpoint frames into the wrong broadcast domain
  3. BGP neighbors require compatible AS relationships and reachable transport before exchanging routes
  4. A static next hop that cannot be resolved prevents the default route from forwarding traffic

Explanation

Correct Answer

A:

The evidence indicates that mST region mismatches change topology interpretation and can select unexpected ports. The appropriate response is to align the intended MST region name revision and VLAN-to-instance mapping on participating switches and demonstrate that all intended switches report matching region configuration and stable root paths. This result addresses the stated challenge at the Nortonwood public agency.

Incorrect Answers

B:

An incorrect access VLAN places untagged endpoint frames into the wrong broadcast domain. The present question instead depends on this mechanism: mST region mismatches change topology interpretation and can select unexpected ports. That difference matters for the requested root-cause explanation.

C:

BGP neighbors require compatible AS relationships and reachable transport before exchanging routes, rather than merely a monitoring or presentation issue. The offered alternative applies that mechanism: BGP neighbors require compatible AS relationships and reachable transport before exchanging routes. The reported facts point to a different controlling condition: mST region mismatches change topology interpretation and can select unexpected ports. The alternative does not directly settle the required root-cause explanation.

D:

A static next hop that cannot be resolved prevents the default route from forwarding traffic. In this question, the decisive issue is: mST region mismatches change topology interpretation and can select unexpected ports. That is why the offered option is not the most direct root-cause explanation.