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Exam Code: HPE7-A08

Exam Name HPE Network Switching Professional

Certification Provider: HP

Corresponding Certification: HPE Aruba Networking Certified Professional - Switching

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HP HPE7-A08 Practice Test 15

Question 140

At Keystone Research, the laboratory platform group is preparing a research campus upgrade. The operational constraint is evidence-based change approval. After a proposed fix, the team needs observable evidence that it resolved: A technician changes the wrong numbered port because the physical labeling does not match the interface identifier. Which result BEST demonstrates that this specific issue was resolved?

  1. The post-change interface description and state match the physical jack recorded in the work order.
  2. The checkpoint exists and a lab rollback restores the previously known configuration.
  3. After a controlled reboot, the switch retains the approved VLAN and interface settings.
  4. The intended interface attributes appear under that interface in running configuration after execution.

Explanation

Correct Answer

A:

The post-change interface description and state match the physical jack recorded in the work order. This is the relevant acceptance observation for the reported issue: A technician changes the wrong numbered port because the physical labeling does not match the interface identifier. The intended corrective choice is: Use show interface inventory/status output to map chassis, member and port identifiers before editing. At Keystone Research, this outcome verifies actual operation under evidence-based change approval, rather than only a ticket marked complete.

Incorrect Answers

B:

The checkpoint exists and a lab rollback restores the previously known configuration. Such an observation would verify a separate issue: A configuration operator applies a complex change with no reversible checkpoint. It would follow the distinct action: Create a supported configuration checkpoint and verify the rollback procedure before modifying production. Here the reported failure is A technician changes the wrong numbered port because the physical labeling does not match the interface identifier. The decisive result for Keystone Research must instead be: The post-change interface description and state match the physical jack recorded in the work order.

C:

After a controlled reboot, the switch retains the approved VLAN and interface settings. Such an observation would verify a separate issue: A migration plan records only running-config and cannot explain which settings survive an unexpected reboot. It would follow the distinct action: Inspect running and startup configuration and explicitly persist approved changes using supported AOS-CX procedures. Here the reported failure is A technician changes the wrong numbered port because the physical labeling does not match the interface identifier. The decisive result for Keystone Research must instead be: The post-change interface description and state match the physical jack recorded in the work order.

D:

The intended interface attributes appear under that interface in running configuration after execution. Such an observation would verify a separate issue: An engineer enters interface commands at the privileged EXEC prompt and receives syntax/context errors. It would follow the distinct action: Enter the appropriate configuration mode and interface context before applying interface-specific AOS-CX changes. Here the reported failure is A technician changes the wrong numbered port because the physical labeling does not match the interface identifier. The decisive result for Keystone Research must instead be: The post-change interface description and state match the physical jack recorded in the work order.

Question 141

At Alder Transit, the branch-to-campus connectivity team is preparing a staged station-switch migration. The operational constraint is a short overnight outage window. Engineers isolate the following gap: A technician changes the wrong numbered port because the physical labeling does not match the interface identifier. Which action BEST corrects the stated problem?

  1. Use show interface inventory/status output to map chassis, member and port identifiers before editing.
  2. Enter the appropriate configuration mode and interface context before applying interface-specific AOS-CX changes.
  3. Create a supported configuration checkpoint and verify the rollback procedure before modifying production.
  4. Configure supported SSH-based management and individual authenticated accounts or AAA, disabling insecure access methods.

Explanation

Correct Answer

A:

Use show interface inventory/status output to map chassis, member and port identifiers before editing. This response directly addresses the observed condition: A technician changes the wrong numbered port because the physical labeling does not match the interface identifier. For Alder Transit during a staged station-switch migration, the decisive check is not merely that a configuration was entered: The post-change interface description and state match the physical jack recorded in the work order. That evidence connects the proposed correction to measurable forwarding or management behavior.

Incorrect Answers

B:

Enter the appropriate configuration mode and interface context before applying interface-specific AOS-CX changes. That relates to a different fault: An engineer enters interface commands at the privileged EXEC prompt and receives syntax/context errors. The incident in the scenario is instead: A technician changes the wrong numbered port because the physical labeling does not match the interface identifier. Changing the unrelated setting does not establish the required repair at Alder Transit; the relevant confirmation would be: The post-change interface description and state match the physical jack recorded in the work order.

C:

Create a supported configuration checkpoint and verify the rollback procedure before modifying production. That relates to a different fault: A configuration operator applies a complex change with no reversible checkpoint. The incident in the scenario is instead: A technician changes the wrong numbered port because the physical labeling does not match the interface identifier. Changing the unrelated setting does not establish the required repair at Alder Transit; the relevant confirmation would be: The post-change interface description and state match the physical jack recorded in the work order.

D:

Configure supported SSH-based management and individual authenticated accounts or AAA, disabling insecure access methods. That relates to a different fault: A switch is managed with shared credentials over insecure legacy protocols. The incident in the scenario is instead: A technician changes the wrong numbered port because the physical labeling does not match the interface identifier. Changing the unrelated setting does not establish the required repair at Alder Transit; the relevant confirmation would be: The post-change interface description and state match the physical jack recorded in the work order.

Question 142

At Alder Transit, the branch-to-campus connectivity team is preparing a staged station-switch migration. The operational constraint is a short overnight outage window. The change ticket is marked completed for this reported failure: A technician changes the wrong numbered port because the physical labeling does not match the interface identifier. Which result BEST demonstrates that this specific issue was resolved?

  1. A management test permits authorized SSH and rejects unapproved insecure sessions.
  2. The checkpoint exists and a lab rollback restores the previously known configuration.
  3. The intended interface attributes appear under that interface in running configuration after execution.
  4. The post-change interface description and state match the physical jack recorded in the work order.

Explanation

Correct Answer

D:

The post-change interface description and state match the physical jack recorded in the work order. This is the relevant acceptance observation for the reported issue: A technician changes the wrong numbered port because the physical labeling does not match the interface identifier. The intended corrective choice is: Use show interface inventory/status output to map chassis, member and port identifiers before editing. At Alder Transit, this outcome verifies actual operation under a short overnight outage window, rather than only a ticket marked complete.

Incorrect Answers

A:

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 A technician changes the wrong numbered port because the physical labeling does not match the interface identifier. The decisive result for Alder Transit must instead be: The post-change interface description and state match the physical jack recorded in the work order.

B:

The checkpoint exists and a lab rollback restores the previously known configuration. Such an observation would verify a separate issue: A configuration operator applies a complex change with no reversible checkpoint. It would follow the distinct action: Create a supported configuration checkpoint and verify the rollback procedure before modifying production. Here the reported failure is A technician changes the wrong numbered port because the physical labeling does not match the interface identifier. The decisive result for Alder Transit must instead be: The post-change interface description and state match the physical jack recorded in the work order.

C:

The intended interface attributes appear under that interface in running configuration after execution. Such an observation would verify a separate issue: An engineer enters interface commands at the privileged EXEC prompt and receives syntax/context errors. It would follow the distinct action: Enter the appropriate configuration mode and interface context before applying interface-specific AOS-CX changes. Here the reported failure is A technician changes the wrong numbered port because the physical labeling does not match the interface identifier. The decisive result for Alder Transit must instead be: The post-change interface description and state match the physical jack recorded in the work order.

Question 143

At Eastport Retail, the nationwide store-network group is preparing a branch WAN and access-layer refresh. The operational constraint is minimal loss of payment connectivity. The implementation review flags: A configuration operator applies a complex change with no reversible checkpoint. Which action BEST corrects the stated problem?

  1. Use show interface inventory/status output to map chassis, member and port identifiers before editing.
  2. Create a supported configuration checkpoint and verify the rollback procedure before modifying production.
  3. Inspect running and startup configuration and explicitly persist approved changes using supported AOS-CX procedures.
  4. Configure supported SSH-based management and individual authenticated accounts or AAA, disabling insecure access methods.

Explanation

Correct Answer

B:

Create a supported configuration checkpoint and verify the rollback procedure before modifying production. This response directly addresses the observed condition: A configuration operator applies a complex change with no reversible checkpoint. For Eastport Retail during a branch WAN and access-layer refresh, the decisive check is not merely that a configuration was entered: The checkpoint exists and a lab rollback restores the previously known configuration. That evidence connects the proposed correction to measurable forwarding or management behavior.

Incorrect Answers

A:

Use show interface inventory/status output to map chassis, member and port identifiers before editing. That relates to a different fault: A technician changes the wrong numbered port because the physical labeling does not match the interface identifier. The incident in the scenario is instead: A configuration operator applies a complex change with no reversible checkpoint. Changing the unrelated setting does not establish the required repair at Eastport Retail; the relevant confirmation would be: The checkpoint exists and a lab rollback restores the previously known configuration.

C:

Inspect running and startup configuration and explicitly persist approved changes using supported AOS-CX procedures. That relates to a different fault: A migration plan records only running-config and cannot explain which settings survive an unexpected reboot. The incident in the scenario is instead: A configuration operator applies a complex change with no reversible checkpoint. Changing the unrelated setting does not establish the required repair at Eastport Retail; the relevant confirmation would be: The checkpoint exists and a lab rollback restores the previously known configuration.

D:

Configure supported SSH-based management and individual authenticated accounts or AAA, disabling insecure access methods. That relates to a different fault: A switch is managed with shared credentials over insecure legacy protocols. The incident in the scenario is instead: A configuration operator applies a complex change with no reversible checkpoint. Changing the unrelated setting does not establish the required repair at Eastport Retail; the relevant confirmation would be: The checkpoint exists and a lab rollback restores the previously known configuration.

Question 144

At Eastport Retail, the nationwide store-network group is preparing a branch WAN and access-layer refresh. The operational constraint is minimal loss of payment connectivity. After a proposed fix, the team needs observable evidence that it resolved: A configuration operator applies a complex change with no reversible checkpoint. Which result BEST demonstrates that this specific issue was resolved?

  1. After a controlled reboot, the switch retains the approved VLAN and interface settings.
  2. The post-change interface description and state match the physical jack recorded in the work order.
  3. The checkpoint exists and a lab rollback restores the previously known configuration.
  4. The intended interface attributes appear under that interface in running configuration after execution.

Explanation

Correct Answer

C:

The checkpoint exists and a lab rollback restores the previously known configuration. This is the relevant acceptance observation for the reported issue: A configuration operator applies a complex change with no reversible checkpoint. The intended corrective choice is: Create a supported configuration checkpoint and verify the rollback procedure before modifying production. At Eastport Retail, this outcome verifies actual operation under minimal loss of payment connectivity, rather than only a ticket marked complete.

Incorrect Answers

A:

After a controlled reboot, the switch retains the approved VLAN and interface settings. Such an observation would verify a separate issue: A migration plan records only running-config and cannot explain which settings survive an unexpected reboot. It would follow the distinct action: Inspect running and startup configuration and explicitly persist approved changes using supported AOS-CX procedures. Here the reported failure is A configuration operator applies a complex change with no reversible checkpoint. The decisive result for Eastport Retail must instead be: The checkpoint exists and a lab rollback restores the previously known configuration.

B:

The post-change interface description and state match the physical jack recorded in the work order. Such an observation would verify a separate issue: A technician changes the wrong numbered port because the physical labeling does not match the interface identifier. It would follow the distinct action: Use show interface inventory/status output to map chassis, member and port identifiers before editing. Here the reported failure is A configuration operator applies a complex change with no reversible checkpoint. The decisive result for Eastport Retail must instead be: The checkpoint exists and a lab rollback restores the previously known configuration.

D:

The intended interface attributes appear under that interface in running configuration after execution. Such an observation would verify a separate issue: An engineer enters interface commands at the privileged EXEC prompt and receives syntax/context errors. It would follow the distinct action: Enter the appropriate configuration mode and interface context before applying interface-specific AOS-CX changes. Here the reported failure is A configuration operator applies a complex change with no reversible checkpoint. The decisive result for Eastport Retail must instead be: The checkpoint exists and a lab rollback restores the previously known configuration.

Question 145

At Lakeshore Education, the school network support crew is preparing a district-wide replacement program. The operational constraint is classroom outages kept within target. The site acceptance review finds: An uplink module fits physically but fails to establish a link because the optic speed is unsupported on the port. Which action BEST corrects the stated problem?

  1. Verify polarity, fiber continuity, connector cleanliness and optical power in the physical installation checklist.
  2. Check transceiver compatibility, supported speed and optical media rather than assuming physical fit ensures operation.
  3. Use the vendor-supported DAC or transceiver/cable combination for the specified distance and interface.
  4. Check environmental operating limits, airflow orientation, rack clearance and redundant fan/PSU status.

Explanation

Correct Answer

B:

Check transceiver compatibility, supported speed and optical media rather than assuming physical fit ensures operation. This response directly addresses the observed condition: An uplink module fits physically but fails to establish a link because the optic speed is unsupported on the port. For Lakeshore Education during a district-wide replacement program, the decisive check is not merely that a configuration was entered: Both sides report a stable negotiated link with supported optics and acceptable signal levels. That evidence connects the proposed correction to measurable forwarding or management behavior.

Incorrect Answers

A:

Verify polarity, fiber continuity, connector cleanliness and optical power in the physical installation checklist. That relates to a different fault: A fiber uplink fails after patching because receive and transmit pairs are crossed incorrectly or one strand is faulty. The incident in the scenario is instead: An uplink module fits physically but fails to establish a link because the optic speed is unsupported on the port. Changing the unrelated setting does not establish the required repair at Lakeshore Education; the relevant confirmation would be: Both sides report a stable negotiated link with supported optics and acceptable signal levels.

C:

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: An uplink module fits physically but fails to establish a link because the optic speed is unsupported on the port. Changing the unrelated setting does not establish the required repair at Lakeshore Education; the relevant confirmation would be: Both sides report a stable negotiated link with supported optics and acceptable signal levels.

D:

Check environmental operating limits, airflow orientation, rack clearance and redundant fan/PSU status. That relates to a different fault: A distribution closet frequently overheats after a higher-power switch is installed. The incident in the scenario is instead: An uplink module fits physically but fails to establish a link because the optic speed is unsupported on the port. Changing the unrelated setting does not establish the required repair at Lakeshore Education; the relevant confirmation would be: Both sides report a stable negotiated link with supported optics and acceptable signal levels.

Question 146

At Lakeshore Education, the school network support crew is preparing a district-wide replacement program. The operational constraint is classroom outages kept within target. A production-readiness reviewer asks for proof addressing: An uplink module fits physically but fails to establish a link because the optic speed is unsupported on the port. Which result BEST demonstrates that this specific issue was resolved?

  1. The supported part numbers pass physical link validation on both interfaces.
  2. Light-level and link tests pass after the correct patching path is installed.
  3. Both sides report a stable negotiated link with supported optics and acceptable signal levels.
  4. Power telemetry shows adequate headroom and all designated endpoints boot without PoE-denial events.

Explanation

Correct Answer

C:

Both sides report a stable negotiated link with supported optics and acceptable signal levels. This is the relevant acceptance observation for the reported issue: An uplink module fits physically but fails to establish a link because the optic speed is unsupported on the port. The intended corrective choice is: Check transceiver compatibility, supported speed and optical media rather than assuming physical fit ensures operation. At Lakeshore Education, this outcome verifies actual operation under classroom outages kept within target, rather than only a ticket marked complete.

Incorrect Answers

A:

The supported part numbers pass physical link validation on both interfaces. Such an observation would verify a separate issue: Two data-center switches must connect at short range but the purchasing team orders an optic/DAC combination incompatible with the platform. It would follow the distinct action: Use the vendor-supported DAC or transceiver/cable combination for the specified distance and interface. Here the reported failure is An uplink module fits physically but fails to establish a link because the optic speed is unsupported on the port. The decisive result for Lakeshore Education must instead be: Both sides report a stable negotiated link with supported optics and acceptable signal levels.

B:

Light-level and link tests pass after the correct patching path is installed. Such an observation would verify a separate issue: A fiber uplink fails after patching because receive and transmit pairs are crossed incorrectly or one strand is faulty. It would follow the distinct action: Verify polarity, fiber continuity, connector cleanliness and optical power in the physical installation checklist. Here the reported failure is An uplink module fits physically but fails to establish a link because the optic speed is unsupported on the port. The decisive result for Lakeshore Education must instead be: Both sides report a stable negotiated link with supported optics and acceptable signal levels.

D:

Power telemetry shows adequate headroom and all designated endpoints boot without PoE-denial events. Such an observation would verify a separate issue: A new access switch powers phones but several higher-draw APs fail to start when all ports are populated. It would follow the distinct action: Verify PSU sizing, PoE mode and per-port allocation against concurrent load. Here the reported failure is An uplink module fits physically but fails to establish a link because the optic speed is unsupported on the port. The decisive result for Lakeshore Education must instead be: Both sides report a stable negotiated link with supported optics and acceptable signal levels.

Question 147

At Bluecrest Medical, the clinical network operations team is preparing a new outpatient-facility deployment. The operational constraint is uninterrupted voice and records access. The network investigation identifies this condition: An uplink module fits physically but fails to establish a link because the optic speed is unsupported on the port. Which action BEST corrects the stated problem?

  1. Use the vendor-supported DAC or transceiver/cable combination for the specified distance and interface.
  2. Verify polarity, fiber continuity, connector cleanliness and optical power in the physical installation checklist.
  3. Check transceiver compatibility, supported speed and optical media rather than assuming physical fit ensures operation.
  4. Verify PSU sizing, PoE mode and per-port allocation against concurrent load.

Explanation

Correct Answer

C:

Check transceiver compatibility, supported speed and optical media rather than assuming physical fit ensures operation. This response directly addresses the observed condition: An uplink module fits physically but fails to establish a link because the optic speed is unsupported on the port. For Bluecrest Medical during a new outpatient-facility deployment, the decisive check is not merely that a configuration was entered: Both sides report a stable negotiated link with supported optics and acceptable signal levels. That evidence connects the proposed correction to measurable forwarding or management behavior.

Incorrect Answers

A:

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: An uplink module fits physically but fails to establish a link because the optic speed is unsupported on the port. Changing the unrelated setting does not establish the required repair at Bluecrest Medical; the relevant confirmation would be: Both sides report a stable negotiated link with supported optics and acceptable signal levels.

B:

Verify polarity, fiber continuity, connector cleanliness and optical power in the physical installation checklist. That relates to a different fault: A fiber uplink fails after patching because receive and transmit pairs are crossed incorrectly or one strand is faulty. The incident in the scenario is instead: An uplink module fits physically but fails to establish a link because the optic speed is unsupported on the port. Changing the unrelated setting does not establish the required repair at Bluecrest Medical; the relevant confirmation would be: Both sides report a stable negotiated link with supported optics and acceptable signal levels.

D:

Verify PSU sizing, PoE mode and per-port allocation against concurrent load. That relates to a different fault: A new access switch powers phones but several higher-draw APs fail to start when all ports are populated. The incident in the scenario is instead: An uplink module fits physically but fails to establish a link because the optic speed is unsupported on the port. Changing the unrelated setting does not establish the required repair at Bluecrest Medical; the relevant confirmation would be: Both sides report a stable negotiated link with supported optics and acceptable signal levels.

Question 148

At Bluecrest Medical, the clinical network operations team is preparing a new outpatient-facility deployment. The operational constraint is uninterrupted voice and records access. The owner reports that the correction is complete for this issue: An uplink module fits physically but fails to establish a link because the optic speed is unsupported on the port. Which result BEST demonstrates that this specific issue was resolved?

  1. Environmental sensors remain inside supported limits under representative link and PoE load.
  2. Both sides report a stable negotiated link with supported optics and acceptable signal levels.
  3. The supported part numbers pass physical link validation on both interfaces.
  4. Light-level and link tests pass after the correct patching path is installed.

Explanation

Correct Answer

B:

Both sides report a stable negotiated link with supported optics and acceptable signal levels. This is the relevant acceptance observation for the reported issue: An uplink module fits physically but fails to establish a link because the optic speed is unsupported on the port. The intended corrective choice is: Check transceiver compatibility, supported speed and optical media rather than assuming physical fit ensures operation. At Bluecrest Medical, this outcome verifies actual operation under uninterrupted voice and records access, rather than only a ticket marked complete.

Incorrect Answers

A:

Environmental sensors remain inside supported limits under representative link and PoE load. Such an observation would verify a separate issue: A distribution closet frequently overheats after a higher-power switch is installed. It would follow the distinct action: Check environmental operating limits, airflow orientation, rack clearance and redundant fan/PSU status. Here the reported failure is An uplink module fits physically but fails to establish a link because the optic speed is unsupported on the port. The decisive result for Bluecrest Medical must instead be: Both sides report a stable negotiated link with supported optics and acceptable signal levels.

C:

The supported part numbers pass physical link validation on both interfaces. Such an observation would verify a separate issue: Two data-center switches must connect at short range but the purchasing team orders an optic/DAC combination incompatible with the platform. It would follow the distinct action: Use the vendor-supported DAC or transceiver/cable combination for the specified distance and interface. Here the reported failure is An uplink module fits physically but fails to establish a link because the optic speed is unsupported on the port. The decisive result for Bluecrest Medical must instead be: Both sides report a stable negotiated link with supported optics and acceptable signal levels.

D:

Light-level and link tests pass after the correct patching path is installed. Such an observation would verify a separate issue: A fiber uplink fails after patching because receive and transmit pairs are crossed incorrectly or one strand is faulty. It would follow the distinct action: Verify polarity, fiber continuity, connector cleanliness and optical power in the physical installation checklist. Here the reported failure is An uplink module fits physically but fails to establish a link because the optic speed is unsupported on the port. The decisive result for Bluecrest Medical must instead be: Both sides report a stable negotiated link with supported optics and acceptable signal levels.

Question 149

At Fairmont Logistics, the distribution-center switching team is preparing a warehouse device rollout. The operational constraint is critical handheld scanner uptime. The site acceptance review finds: A new access switch powers phones but several higher-draw APs fail to start when all ports are populated. Which action BEST corrects the stated problem?

  1. Verify PSU sizing, PoE mode and per-port allocation against concurrent load.
  2. Use the vendor-supported DAC or transceiver/cable combination for the specified distance and interface.
  3. Check transceiver compatibility, supported speed and optical media rather than assuming physical fit ensures operation.
  4. Verify polarity, fiber continuity, connector cleanliness and optical power in the physical installation checklist.

Explanation

Correct Answer

A:

Verify PSU sizing, PoE mode and per-port allocation against concurrent load. This response directly addresses the observed condition: A new access switch powers phones but several higher-draw APs fail to start when all ports are populated. For Fairmont Logistics during a warehouse device rollout, the decisive check is not merely that a configuration was entered: Power telemetry shows adequate headroom and all designated endpoints boot without PoE-denial events. That evidence connects the proposed correction to measurable forwarding or management behavior.

Incorrect Answers

B:

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: A new access switch powers phones but several higher-draw APs fail to start when all ports are populated. Changing the unrelated setting does not establish the required repair at Fairmont Logistics; the relevant confirmation would be: Power telemetry shows adequate headroom and all designated endpoints boot without PoE-denial events.

C:

Check transceiver compatibility, supported speed and optical media rather than assuming physical fit ensures operation. That relates to a different fault: An uplink module fits physically but fails to establish a link because the optic speed is unsupported on the port. The incident in the scenario is instead: A new access switch powers phones but several higher-draw APs fail to start when all ports are populated. Changing the unrelated setting does not establish the required repair at Fairmont Logistics; the relevant confirmation would be: Power telemetry shows adequate headroom and all designated endpoints boot without PoE-denial events.

D:

Verify polarity, fiber continuity, connector cleanliness and optical power in the physical installation checklist. That relates to a different fault: A fiber uplink fails after patching because receive and transmit pairs are crossed incorrectly or one strand is faulty. The incident in the scenario is instead: A new access switch powers phones but several higher-draw APs fail to start when all ports are populated. Changing the unrelated setting does not establish the required repair at Fairmont Logistics; the relevant confirmation would be: Power telemetry shows adequate headroom and all designated endpoints boot without PoE-denial events.

Question 150

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 new access switch powers phones but several higher-draw APs fail to start when all ports are populated. Which result BEST demonstrates that this specific issue was resolved?

  1. Power telemetry shows adequate headroom and all designated endpoints boot without PoE-denial events.
  2. Environmental sensors remain inside supported limits under representative link and PoE load.
  3. The supported part numbers pass physical link validation on both interfaces.
  4. Light-level and link tests pass after the correct patching path is installed.

Explanation

Correct Answer

A:

Power telemetry shows adequate headroom and all designated endpoints boot without PoE-denial events. This is the relevant acceptance observation for the reported issue: A new access switch powers phones but several higher-draw APs fail to start when all ports are populated. The intended corrective choice is: Verify PSU sizing, PoE mode and per-port allocation against concurrent load. At Fairmont Logistics, this outcome verifies actual operation under critical handheld scanner uptime, rather than only a ticket marked complete.

Incorrect Answers

B:

Environmental sensors remain inside supported limits under representative link and PoE load. Such an observation would verify a separate issue: A distribution closet frequently overheats after a higher-power switch is installed. It would follow the distinct action: Check environmental operating limits, airflow orientation, rack clearance and redundant fan/PSU status. Here the reported failure is A new access switch powers phones but several higher-draw APs fail to start when all ports are populated. The decisive result for Fairmont Logistics must instead be: Power telemetry shows adequate headroom and all designated endpoints boot without PoE-denial events.

C:

The supported part numbers pass physical link validation on both interfaces. Such an observation would verify a separate issue: Two data-center switches must connect at short range but the purchasing team orders an optic/DAC combination incompatible with the platform. It would follow the distinct action: Use the vendor-supported DAC or transceiver/cable combination for the specified distance and interface. Here the reported failure is A new access switch powers phones but several higher-draw APs fail to start when all ports are populated. The decisive result for Fairmont Logistics must instead be: Power telemetry shows adequate headroom and all designated endpoints boot without PoE-denial events.

D:

Light-level and link tests pass after the correct patching path is installed. Such an observation would verify a separate issue: A fiber uplink fails after patching because receive and transmit pairs are crossed incorrectly or one strand is faulty. It would follow the distinct action: Verify polarity, fiber continuity, connector cleanliness and optical power in the physical installation checklist. Here the reported failure is A new access switch powers phones but several higher-draw APs fail to start when all ports are populated. The decisive result for Fairmont Logistics must instead be: Power telemetry shows adequate headroom and all designated endpoints boot without PoE-denial events.