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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 31

Question 300

At the Westhaven data center, a data center switch becomes unstable and system logs report abnormal fan and temperature sensors. Which ongoing control best prevents this issue from recurring?

  1. Review per-port templates and physical labeling on access moves
  2. Test VSX failure scenarios and peer link monitoring after maintenance
  3. Monitor thermal events and cooling redundancy in facilities alerts
  4. Audit VRF route-policy changes against the network access matrix

Explanation

Correct Answer

C:

After implementation, the team should monitor thermal events and cooling redundancy in facilities alerts as the appropriate recurring safeguard against the identified issue. This result addresses the stated challenge at the Westhaven data center.

Incorrect Answers

A:

a misassigned access interface forwards untagged frames in the wrong broadcast domain. The offered alternative applies that mechanism: Review per-port templates and physical labeling on access moves. The reported facts point to a different controlling condition: overtemperature or failed cooling hardware can cause throttling and shutdown independent of routing configuration, rather than merely a monitoring or presentation issue. The alternative does not directly settle the required recurrence control.

B:

Test VSX failure scenarios and peer link monitoring after maintenance. Its technical scope is explained by: loss of VSX coordination requires interpreting split and operational state rather than blindly bouncing all links, the required evidence must show that a controlled repair restores VSX peer health and downstream multi-chassis aggregation. In this question, the decisive issue is: overtemperature or failed cooling hardware can cause throttling and shutdown independent of routing configuration, rather than merely a monitoring or presentation issue. That is why the offered option is not the most direct recurrence control.

D:

Audit VRF route-policy changes against the network access matrix. This option is based on the following distinct technical behavior: a poorly scoped route import can undermine segmentation without changing physical VLANs, the required evidence must show that the contractor reaches only approved destinations and the private network is no longer routable. The present question instead depends on this mechanism: overtemperature or failed cooling hardware can cause throttling and shutdown independent of routing configuration, rather than merely a monitoring or presentation issue. That difference matters for the requested recurrence control.

Question 301

At the Marshport campus network, a network team starts changing every VLAN when one office loses connectivity without first identifying the failed boundary. Which implementation choice best addresses the situation?

  1. Use a layer-by-layer incident plan to collect symptoms interface state VLAN reachability and routing evidence before correction
  2. Compare archived known-good configuration to the current running state and implement a reviewed rollback
  3. Trace both directions and align routing or firewall session policies with the approved topology
  4. Compare the endpoint IP address mask and gateway to the approved VLAN addressing plan and correct the mismatch

Explanation

Correct Answer

A:

This solution addresses the stated limitation: broad speculative configuration changes can expand an outage and obscure the original fault. Implementing it means the team should use a layer-by-layer incident plan to collect symptoms interface state VLAN reachability and routing evidence before correction, then verify that a controlled trace isolates the failing hop before a single approved repair is applied. This result addresses the stated challenge at the Marshport campus network.

Incorrect Answers

B:

The option states: Compare archived known-good configuration to the current running state and implement a reviewed rollback. The source describes its associated mechanism as: untracked changes make a fleet-wide regression difficult to diagnose and reverse safely; a passing acceptance check would show that the affected switch recovers its previous validated forwarding behavior after rollback. By contrast, the current situation is governed by: it requires the team to require evidence and rollback steps in troubleshooting tickets. Choosing this alternative would leave the question’s specific implementation unresolved.

C:

Trace both directions and align routing or firewall session policies with the approved topology. This option is based on the following distinct technical behavior: a stateful security device may reject return flows when paths are asymmetric. The present question instead depends on this mechanism: it requires the team to require evidence and rollback steps in troubleshooting tickets. That difference matters for the requested implementation.

D:

an invalid mask or gateway can direct off-subnet packets to an unreachable destination. The offered alternative applies that mechanism: Compare the endpoint IP address mask and gateway to the approved VLAN addressing plan and correct the mismatch. The reported facts point to a different controlling condition: it requires the team to require evidence and rollback steps in troubleshooting tickets. The alternative does not directly settle the required implementation.

Question 302

At the Marshport campus network, a network team starts changing every VLAN when one office loses connectivity without first identifying the failed boundary. What risk should the team identify as the primary issue?

  1. Broad speculative configuration changes can expand an outage and obscure the original fault
  2. A blanket rollback may discard working voice protections and widen congestion
  3. Microbursts can fill egress buffers briefly while averaged utilization looks normal
  4. One physical link may be excluded from aggregation when LACP negotiation is inconsistent

Explanation

Correct Answer

A:

The situation shows that broad speculative configuration changes can expand an outage and obscure the original fault, rather than merely a monitoring or presentation issue. Remediation is to use a layer-by-layer incident plan to collect symptoms interface state VLAN reachability and routing evidence before correction. This result addresses the stated challenge at the Marshport campus network.

Incorrect Answers

B:

A blanket rollback may discard working voice protections and widen congestion. The present question instead depends on this mechanism: broad speculative configuration changes can expand an outage and obscure the original fault, rather than merely a monitoring or presentation issue. That difference matters for the requested root-cause explanation.

C:

microbursts can fill egress buffers briefly while averaged utilization looks normal, rather than merely a monitoring or presentation issue. The offered alternative applies that mechanism: Microbursts can fill egress buffers briefly while averaged utilization looks normal. The reported facts point to a different controlling condition: broad speculative configuration changes can expand an outage and obscure the original fault, rather than merely a monitoring or presentation issue. The alternative does not directly settle the required root-cause explanation.

D:

One physical link may be excluded from aggregation when LACP negotiation is inconsistent. In this question, the decisive issue is: broad speculative configuration changes can expand an outage and obscure the original fault, rather than merely a monitoring or presentation issue. That is why the offered option is not the most direct root-cause explanation.

Question 303

At the Marshport campus network, a network team starts changing every VLAN when one office loses connectivity without first identifying the failed boundary. What is the strongest acceptance test for this change?

  1. The neighbor becomes established and authorized route advertisements are observed
  2. A controlled trace isolates the failing hop before a single approved repair is applied
  3. A loaded traffic mix meets latency and loss targets for both protected classes
  4. Under a controlled packet-load test required peers remain stable after filtering

Explanation

Correct Answer

B:

The team can confirm the fix by showing that a controlled trace isolates the failing hop before a single approved repair is applied. This aligns with the corrective design to use a layer-by-layer incident plan to collect symptoms interface state VLAN reachability and routing evidence before correction. This result addresses the stated challenge at the Marshport campus network.

Incorrect Answers

A:

The neighbor becomes established and authorized route advertisements are observed. This option is based on the following distinct technical behavior: it requires the team to monitor BGP transport and peer state after firewall updates. The present question instead depends on this mechanism: it requires the team to require evidence and rollback steps in troubleshooting tickets. That difference matters for the requested acceptance evidence.

C:

A loaded traffic mix meets latency and loss targets for both protected classes. Its technical scope is explained by: an overly aggressive queue allocation can starve another important traffic class, rather than merely a monitoring or presentation issue. In this question, the decisive issue is: it requires the team to require evidence and rollback steps in troubleshooting tickets. That is why the offered option is not the most direct acceptance evidence.

D:

The option states: Under a controlled packet-load test required peers remain stable after filtering. The source describes its associated mechanism as: control-plane resource exhaustion can delay hello processing and neighbor maintenance, the required evidence must show that under a controlled packet-load test required peers remain stable after filtering. By contrast, the current situation is governed by: it requires the team to require evidence and rollback steps in troubleshooting tickets. Choosing this alternative would leave the question’s specific acceptance evidence unresolved.

Question 304

At the Marshport campus network, a network team starts changing every VLAN when one office loses connectivity without first identifying the failed boundary. Which setting or practice should be reviewed in future?

  1. Use load tests and class counters as gates for QoS changes
  2. Require evidence and rollback steps in troubleshooting tickets
  3. Audit DHCP reservations and static address exceptions after desk moves
  4. Review spanning tree root placement and topology change logs

Explanation

Correct Answer

B:

This control works beyond the initial remediation because it requires the team to require evidence and rollback steps in troubleshooting tickets. This result addresses the stated challenge at the Marshport campus network.

Incorrect Answers

A:

it requires the team to use load tests and class counters as gates for QoS changes. The offered alternative applies that mechanism: Use load tests and class counters as gates for QoS changes. The reported facts point to a different controlling condition: it requires the team to require evidence and rollback steps in troubleshooting tickets. The alternative does not directly settle the required recurrence control.

C:

The option states: Audit DHCP reservations and static address exceptions after desk moves. The source describes its associated mechanism as: an invalid mask or gateway can direct off-subnet packets to an unreachable destination. By contrast, the current situation is governed by: it requires the team to require evidence and rollback steps in troubleshooting tickets. Choosing this alternative would leave the question’s specific recurrence control unresolved.

D:

Review spanning tree root placement and topology change logs. This option is based on the following distinct technical behavior: spanning tree intentionally blocks some redundant Layer 2 paths to avoid loops. The present question instead depends on this mechanism: it requires the team to require evidence and rollback steps in troubleshooting tickets. That difference matters for the requested recurrence control.

Question 305

At the Greystone insurance campus, a maintenance push breaks several switches and no one knows which CLI settings changed. Which corrective action best meets the requirement?

  1. Compare archived known-good configuration to the current running state and implement a reviewed rollback
  2. Plan a staged supported image upgrade with compatibility checks backup and failback procedure
  3. Inspect physical error counters and validate cable optic and port conditions on the suspect hop
  4. Inspect multicast membership snooping and querier state for the affected VLAN

Explanation

Correct Answer

A:

This is the direct HPE Aruba wired switching remedy: compare archived known-good configuration to the current running state and implement a reviewed rollback. The observed risk is that untracked changes make a fleet-wide regression difficult to diagnose and reverse safely; a passing acceptance check would show that the affected switch recovers its previous validated forwarding behavior after rollback. This result addresses the stated challenge at the Greystone insurance campus.

Incorrect Answers

B:

The option states: Plan a staged supported image upgrade with compatibility checks backup and failback procedure. The source describes its associated mechanism as: an untested fleet-wide image change can replace one defect with a broader outage, the required evidence must show that a pilot upgrade survives service tests and demonstrates a controlled fallback. By contrast, the current situation is governed by: untracked changes make a fleet-wide regression difficult to diagnose and reverse safely; a passing acceptance check would show that the affected switch recovers its previous validated forwarding behavior after rollback. Choosing this alternative would leave the question’s specific implementation unresolved.

C:

Inspect physical error counters and validate cable optic and port conditions on the suspect hop. This option is based on the following distinct technical behavior: corrupt frames require retransmission even when link speed appears correctly negotiated. The present question instead depends on this mechanism: untracked changes make a fleet-wide regression difficult to diagnose and reverse safely; a passing acceptance check would show that the affected switch recovers its previous validated forwarding behavior after rollback. That difference matters for the requested implementation.

D:

without valid membership tracking multicast can be flooded to unrelated ports. The offered alternative applies that mechanism: Inspect multicast membership snooping and querier state for the affected VLAN. The reported facts point to a different controlling condition: untracked changes make a fleet-wide regression difficult to diagnose and reverse safely; a passing acceptance check would show that the affected switch recovers its previous validated forwarding behavior after rollback. The alternative does not directly settle the required implementation.

Question 306

At the Greystone insurance campus, a maintenance push breaks several switches and no one knows which CLI settings changed. Which underlying issue most directly explains this situation?

  1. Configuration changes cannot repair excessive attenuation or a defective transceiver
  2. Temperature sensitive optical hardware can fall outside receive tolerance and interrupt the link
  3. Microbursts can fill egress buffers briefly while averaged utilization looks normal
  4. Untracked changes make a fleet-wide regression difficult to diagnose and reverse safely

Explanation

Correct Answer

D:

The problem stems from the fact that untracked changes make a fleet-wide regression difficult to diagnose and reverse safely. A correct solution would compare archived known-good configuration to the current running state and implement a reviewed rollback and check that the affected switch recovers its previous validated forwarding behavior after rollback. This result addresses the stated challenge at the Greystone insurance campus.

Incorrect Answers

A:

The option states: Configuration changes cannot repair excessive attenuation or a defective transceiver. The source describes its associated mechanism as: configuration changes cannot repair excessive attenuation or a defective transceiver; a passing acceptance check would show that after component replacement the same load test shows stable link and clean error counters. By contrast, the current situation is governed by: untracked changes make a fleet-wide regression difficult to diagnose and reverse safely. Choosing this alternative would leave the question’s specific root-cause explanation unresolved.

B:

Temperature sensitive optical hardware can fall outside receive tolerance and interrupt the link. The present question instead depends on this mechanism: untracked changes make a fleet-wide regression difficult to diagnose and reverse safely. That difference matters for the requested root-cause explanation.

C:

microbursts can fill egress buffers briefly while averaged utilization looks normal, rather than merely a monitoring or presentation issue. The offered alternative applies that mechanism: Microbursts can fill egress buffers briefly while averaged utilization looks normal. The reported facts point to a different controlling condition: untracked changes make a fleet-wide regression difficult to diagnose and reverse safely. The alternative does not directly settle the required root-cause explanation.

Question 307

At the Greystone insurance campus, a maintenance push breaks several switches and no one knows which CLI settings changed. What evidence would justify considering this concern addressed?

  1. An approved client receives a valid address and DHCP logs show an uninterrupted lease
  2. The affected switch recovers its previous validated forwarding behavior after rollback
  3. Measured optical levels return within specification and the link remains stable under load
  4. A replacement optic passes temperature and load checks without flapping

Explanation

Correct Answer

B:

The intended correction is to compare archived known-good configuration to the current running state and implement a reviewed rollback. The decisive verification is that the affected switch recovers its previous validated forwarding behavior after rollback, rather than only confirming configuration was saved. This result addresses the stated challenge at the Greystone insurance campus.

Incorrect Answers

A:

An approved client receives a valid address and DHCP logs show an uninterrupted lease. This option is based on the following distinct technical behavior: a Layer 3 path can pass static traffic while DHCP assignment fails separately. The present question instead depends on this mechanism: untracked changes make a fleet-wide regression difficult to diagnose and reverse safely. That difference matters for the requested acceptance evidence.

C:

Measured optical levels return within specification and the link remains stable under load. Its technical scope is explained by: insufficient optical signal can cause link drops even with correct VLAN and routing setup. In this question, the decisive issue is: untracked changes make a fleet-wide regression difficult to diagnose and reverse safely. That is why the offered option is not the most direct acceptance evidence.

D:

The option states: A replacement optic passes temperature and load checks without flapping. The source describes its associated mechanism as: temperature sensitive optical hardware can fall outside receive tolerance and interrupt the link. By contrast, the current situation is governed by: untracked changes make a fleet-wide regression difficult to diagnose and reverse safely. Choosing this alternative would leave the question’s specific acceptance evidence unresolved.

Question 308

At the Greystone insurance campus, a maintenance push breaks several switches and no one knows which CLI settings changed. How should the organization sustain the improvement?

  1. Require evidence and rollback steps in troubleshooting tickets
  2. Forecast traffic growth using busy-hour baselines
  3. Review spanning tree root placement and topology change logs
  4. Archive configurations and track diffs before every change

Explanation

Correct Answer

D:

The needed prevention is to archive configurations and track diffs before every change. It directly sustains the original change to compare archived known-good configuration to the current running state and implement a reviewed rollback. This result addresses the stated challenge at the Greystone insurance campus.

Incorrect Answers

A:

it requires the team to require evidence and rollback steps in troubleshooting tickets. The offered alternative applies that mechanism: Require evidence and rollback steps in troubleshooting tickets. The reported facts point to a different controlling condition: untracked changes make a fleet-wide regression difficult to diagnose and reverse safely. The alternative does not directly settle the required recurrence control.

B:

Forecast traffic growth using busy-hour baselines. Its technical scope is explained by: a congested shared uplink can delay many otherwise healthy endpoint flows, the required evidence must show that an approved capacity change reduces peak utilization and queue drops. In this question, the decisive issue is: untracked changes make a fleet-wide regression difficult to diagnose and reverse safely. That is why the offered option is not the most direct recurrence control.

C:

The option states: Review spanning tree root placement and topology change logs. The source describes its associated mechanism as: spanning tree intentionally blocks some redundant Layer 2 paths to avoid loops. By contrast, the current situation is governed by: untracked changes make a fleet-wide regression difficult to diagnose and reverse safely. Choosing this alternative would leave the question’s specific recurrence control unresolved.

Question 309

At the Maplehaven manufacturing plant, an uplink BGP peer goes down after a firewall policy change but technicians reset routing before checking TCP connectivity. Which approach best resolves the described issue?

  1. Use a layer-by-layer incident plan to collect symptoms interface state VLAN reachability and routing evidence before correction
  2. Trace both directions and align routing or firewall session policies with the approved topology
  3. Validate auto-negotiation and supported media settings at both ends before restoring the proper link mode
  4. Verify transport reachability and peer authentication then restore the supported BGP neighbor session

Explanation

Correct Answer

D:

Verify transport reachability and peer authentication then restore the supported BGP neighbor session is the best response because BGP cannot converge if the underlying connection or peer access is blocked. A focused validation would establish that the neighbor becomes established and authorized route advertisements are observed. This result addresses the stated challenge at the Maplehaven manufacturing plant.

Incorrect Answers

A:

Use a layer-by-layer incident plan to collect symptoms interface state VLAN reachability and routing evidence before correction. Its technical scope is explained by: it requires the team to require evidence and rollback steps in troubleshooting tickets. In this question, the decisive issue is: BGP cannot converge if the underlying connection or peer access is blocked. That is why the offered option is not the most direct root-cause explanation.

B:

The option states: Trace both directions and align routing or firewall session policies with the approved topology. The source describes its associated mechanism as: a stateful security device may reject return flows when paths are asymmetric. By contrast, the current situation is governed by: BGP cannot converge if the underlying connection or peer access is blocked. Choosing this alternative would leave the question’s specific root-cause explanation unresolved.

C:

Validate auto-negotiation and supported media settings at both ends before restoring the proper link mode. This option is based on the following distinct technical behavior: improper physical negotiation or defective medium can corrupt Ethernet frames despite an up state. The present question instead depends on this mechanism: BGP cannot converge if the underlying connection or peer access is blocked. That difference matters for the requested root-cause explanation.

Question 310

At the Maplehaven manufacturing plant, an uplink BGP peer goes down after a firewall policy change but technicians reset routing before checking TCP connectivity. Which explanation best accounts for the concern?

  1. BGP cannot converge if the underlying connection or peer access is blocked
  2. A poorly scoped route import can undermine segmentation without changing physical VLANs
  3. Overtemperature or failed cooling hardware can cause throttling and shutdown independent of routing configuration
  4. An endpoint driver defect can cause retries or negotiation issues without a switch fault

Explanation

Correct Answer

A:

The strongest explanation is that BGP cannot converge if the underlying connection or peer access is blocked. This accounts for the outcome and supports the action to verify transport reachability and peer authentication then restore the supported BGP neighbor session. This result addresses the stated challenge at the Maplehaven manufacturing plant.

Incorrect Answers

B:

A poorly scoped route import can undermine segmentation without changing physical VLANs. This option is based on the following distinct technical behavior: a poorly scoped route import can undermine segmentation without changing physical VLANs, rather than merely a monitoring or presentation issue. The present question instead depends on this mechanism: it requires the team to monitor BGP transport and peer state after firewall updates. That difference matters for the requested root-cause explanation.

C:

overtemperature or failed cooling hardware can cause throttling and shutdown independent of routing configuration, rather than merely a monitoring or presentation issue. The offered alternative applies that mechanism: Overtemperature or failed cooling hardware can cause throttling and shutdown independent of routing configuration. The reported facts point to a different controlling condition: it requires the team to monitor BGP transport and peer state after firewall updates. The alternative does not directly settle the required root-cause explanation.

D:

An endpoint driver defect can cause retries or negotiation issues without a switch fault. In this question, the decisive issue is: it requires the team to monitor BGP transport and peer state after firewall updates. That is why the offered option is not the most direct root-cause explanation.