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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 16

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.

Question 151

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 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. Check transceiver compatibility, supported speed and optical media rather than assuming physical fit ensures operation.
  2. Use the vendor-supported DAC or transceiver/cable combination for the specified distance and interface.
  3. Verify PSU sizing, PoE mode and per-port allocation against concurrent load.
  4. Check environmental operating limits, airflow orientation, rack clearance and redundant fan/PSU status.

Explanation

Correct Answer

C:

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 Pine Valley Telecom during a regional hub modernization, 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

A:

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 Pine Valley Telecom; the relevant confirmation would be: Power telemetry shows adequate headroom and all designated endpoints boot without PoE-denial events.

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 Pine Valley Telecom; the relevant confirmation would be: Power telemetry shows adequate headroom and all designated endpoints boot without PoE-denial events.

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: 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 Pine Valley Telecom; the relevant confirmation would be: Power telemetry shows adequate headroom and all designated endpoints boot without PoE-denial events.

Question 152

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 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. The supported part numbers pass physical link validation on both interfaces.
  2. Power telemetry shows adequate headroom and all designated endpoints boot without PoE-denial events.
  3. Both sides report a stable negotiated link with supported optics and acceptable signal levels.
  4. Environmental sensors remain inside supported limits under representative link and PoE load.

Explanation

Correct Answer

B:

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 Pine Valley Telecom, this outcome verifies actual operation under planned fault-domain isolation, 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 A new access switch powers phones but several higher-draw APs fail to start when all ports are populated. The decisive result for Pine Valley Telecom must instead be: Power telemetry shows adequate headroom and all designated endpoints boot without PoE-denial events.

C:

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 A new access switch powers phones but several higher-draw APs fail to start when all ports are populated. The decisive result for Pine Valley Telecom must instead be: Power telemetry shows adequate headroom and all designated endpoints boot without PoE-denial events.

D:

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 Pine Valley Telecom must instead be: Power telemetry shows adequate headroom and all designated endpoints boot without PoE-denial events.

Question 153

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: A fiber uplink fails after patching because receive and transmit pairs are crossed incorrectly or one strand is faulty. 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

A:

Verify polarity, fiber continuity, connector cleanliness and optical power in the physical installation checklist. This response directly addresses the observed condition: A fiber uplink fails after patching because receive and transmit pairs are crossed incorrectly or one strand is faulty. For Timberline Foods during a facility rollout, the decisive check is not merely that a configuration was entered: Light-level and link tests pass after the correct patching path is installed. That evidence connects the proposed correction to measurable forwarding or management behavior.

Incorrect Answers

B:

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 fiber uplink fails after patching because receive and transmit pairs are crossed incorrectly or one strand is faulty. Changing the unrelated setting does not establish the required repair at Timberline Foods; the relevant confirmation would be: Light-level and link tests pass after the correct patching path is installed.

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: A fiber uplink fails after patching because receive and transmit pairs are crossed incorrectly or one strand is faulty. Changing the unrelated setting does not establish the required repair at Timberline Foods; the relevant confirmation would be: Light-level and link tests pass after the correct patching path is installed.

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: A fiber uplink fails after patching because receive and transmit pairs are crossed incorrectly or one strand is faulty. Changing the unrelated setting does not establish the required repair at Timberline Foods; the relevant confirmation would be: Light-level and link tests pass after the correct patching path is installed.

Question 154

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: A fiber uplink fails after patching because receive and transmit pairs are crossed incorrectly or one strand is faulty. Which result BEST demonstrates that this specific issue was resolved?

  1. Light-level and link tests pass after the correct patching path is installed.
  2. Power telemetry shows adequate headroom and all designated endpoints boot without PoE-denial events.
  3. Both sides report a stable negotiated link with supported optics and acceptable signal levels.
  4. Environmental sensors remain inside supported limits under representative link and PoE load.

Explanation

Correct Answer

A:

Light-level and link tests pass after the correct patching path is installed. This is the relevant acceptance observation for the reported issue: A fiber uplink fails after patching because receive and transmit pairs are crossed incorrectly or one strand is faulty. The intended corrective choice is: Verify polarity, fiber continuity, connector cleanliness and optical power in the physical installation checklist. At Timberline Foods, this outcome verifies actual operation under defined service-level measurements, rather than only a ticket marked complete.

Incorrect Answers

B:

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 A fiber uplink fails after patching because receive and transmit pairs are crossed incorrectly or one strand is faulty. The decisive result for Timberline Foods must instead be: Light-level and link tests pass after the correct patching path is installed.

C:

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 A fiber uplink fails after patching because receive and transmit pairs are crossed incorrectly or one strand is faulty. The decisive result for Timberline Foods must instead be: Light-level and link tests pass after the correct patching path is installed.

D:

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 fiber uplink fails after patching because receive and transmit pairs are crossed incorrectly or one strand is faulty. The decisive result for Timberline Foods must instead be: Light-level and link tests pass after the correct patching path is installed.

Question 155

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: A fiber uplink fails after patching because receive and transmit pairs are crossed incorrectly or one strand is faulty. Which action BEST corrects the stated problem?

  1. Verify PSU sizing, PoE mode and per-port allocation against concurrent load.
  2. Check transceiver compatibility, supported speed and optical media rather than assuming physical fit ensures operation.
  3. Verify polarity, fiber continuity, connector cleanliness and optical power in the physical installation checklist.
  4. Check environmental operating limits, airflow orientation, rack clearance and redundant fan/PSU status.

Explanation

Correct Answer

C:

Verify polarity, fiber continuity, connector cleanliness and optical power in the physical installation checklist. This response directly addresses the observed condition: A fiber uplink fails after patching because receive and transmit pairs are crossed incorrectly or one strand is faulty. For Juniper Hospitality during a high-season network readiness test, the decisive check is not merely that a configuration was entered: Light-level and link tests pass after the correct patching path is installed. That evidence connects the proposed correction to measurable forwarding or management behavior.

Incorrect Answers

A:

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: A fiber uplink fails after patching because receive and transmit pairs are crossed incorrectly or one strand is faulty. Changing the unrelated setting does not establish the required repair at Juniper Hospitality; the relevant confirmation would be: Light-level and link tests pass after the correct patching path is installed.

B:

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 fiber uplink fails after patching because receive and transmit pairs are crossed incorrectly or one strand is faulty. Changing the unrelated setting does not establish the required repair at Juniper Hospitality; the relevant confirmation would be: Light-level and link tests pass after the correct patching path is installed.

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: A fiber uplink fails after patching because receive and transmit pairs are crossed incorrectly or one strand is faulty. Changing the unrelated setting does not establish the required repair at Juniper Hospitality; the relevant confirmation would be: Light-level and link tests pass after the correct patching path is installed.

Question 156

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: A fiber uplink fails after patching because receive and transmit pairs are crossed incorrectly or one strand is faulty. Which result BEST demonstrates that this specific issue was resolved?

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

Explanation

Correct Answer

B:

Light-level and link tests pass after the correct patching path is installed. This is the relevant acceptance observation for the reported issue: A fiber uplink fails after patching because receive and transmit pairs are crossed incorrectly or one strand is faulty. The intended corrective choice is: Verify polarity, fiber continuity, connector cleanliness and optical power in the physical installation checklist. 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:

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 A fiber uplink fails after patching because receive and transmit pairs are crossed incorrectly or one strand is faulty. The decisive result for Juniper Hospitality must instead be: Light-level and link tests pass after the correct patching path is installed.

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 fiber uplink fails after patching because receive and transmit pairs are crossed incorrectly or one strand is faulty. The decisive result for Juniper Hospitality must instead be: Light-level and link tests pass after the correct patching path is installed.

D:

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 fiber uplink fails after patching because receive and transmit pairs are crossed incorrectly or one strand is faulty. The decisive result for Juniper Hospitality must instead be: Light-level and link tests pass after the correct patching path is installed.

Question 157

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: Two data-center switches must connect at short range but the purchasing team orders an optic/DAC combination incompatible with the platform. Which action BEST corrects the stated problem?

  1. Check environmental operating limits, airflow orientation, rack clearance and redundant fan/PSU status.
  2. Use the vendor-supported DAC or transceiver/cable combination for the specified distance and interface.
  3. Verify PSU sizing, PoE mode and per-port allocation against concurrent load.
  4. Verify polarity, fiber continuity, connector cleanliness and optical power in the physical installation checklist.

Explanation

Correct Answer

B:

Use the vendor-supported DAC or transceiver/cable combination for the specified distance and interface. This response directly addresses the observed condition: Two data-center switches must connect at short range but the purchasing team orders an optic/DAC combination incompatible with the platform. For Northpoint Health during a rural site commissioning project, the decisive check is not merely that a configuration was entered: The supported part numbers pass physical link validation on both interfaces. That evidence connects the proposed correction to measurable forwarding or management behavior.

Incorrect Answers

A:

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: Two data-center switches must connect at short range but the purchasing team orders an optic/DAC combination incompatible with the platform. Changing the unrelated setting does not establish the required repair at Northpoint Health; the relevant confirmation would be: The supported part numbers pass physical link validation on both interfaces.

C:

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: Two data-center switches must connect at short range but the purchasing team orders an optic/DAC combination incompatible with the platform. Changing the unrelated setting does not establish the required repair at Northpoint Health; the relevant confirmation would be: The supported part numbers pass physical link validation on both interfaces.

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: Two data-center switches must connect at short range but the purchasing team orders an optic/DAC combination incompatible with the platform. Changing the unrelated setting does not establish the required repair at Northpoint Health; the relevant confirmation would be: The supported part numbers pass physical link validation on both interfaces.

Question 158

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: Two data-center switches must connect at short range but the purchasing team orders an optic/DAC combination incompatible with the platform. Which result BEST demonstrates that this specific issue was resolved?

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

Explanation

Correct Answer

A:

The supported part numbers pass physical link validation on both interfaces. This is the relevant acceptance observation for the reported issue: Two data-center switches must connect at short range but the purchasing team orders an optic/DAC combination incompatible with the platform. The intended corrective choice is: Use the vendor-supported DAC or transceiver/cable combination for the specified distance and interface. At Northpoint Health, this outcome verifies actual operation under remote support and access restrictions, rather than only a ticket marked complete.

Incorrect Answers

B:

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 Two data-center switches must connect at short range but the purchasing team orders an optic/DAC combination incompatible with the platform. The decisive result for Northpoint Health must instead be: The supported part numbers pass physical link validation on both interfaces.

C:

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 Two data-center switches must connect at short range but the purchasing team orders an optic/DAC combination incompatible with the platform. The decisive result for Northpoint Health must instead be: The supported part numbers pass physical link validation on both interfaces.

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 Two data-center switches must connect at short range but the purchasing team orders an optic/DAC combination incompatible with the platform. The decisive result for Northpoint Health must instead be: The supported part numbers pass physical link validation on both interfaces.

Question 159

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: Two data-center switches must connect at short range but the purchasing team orders an optic/DAC combination incompatible with the platform. Which action BEST corrects the stated problem?

  1. Check environmental operating limits, airflow orientation, rack clearance and redundant fan/PSU status.
  2. Use the vendor-supported DAC or transceiver/cable combination for the specified distance and interface.
  3. Verify PSU sizing, PoE mode and per-port allocation against concurrent load.
  4. Verify polarity, fiber continuity, connector cleanliness and optical power in the physical installation checklist.

Explanation

Correct Answer

B:

Use the vendor-supported DAC or transceiver/cable combination for the specified distance and interface. This response directly addresses the observed condition: Two data-center switches must connect at short range but the purchasing team orders an optic/DAC combination incompatible with the platform. For Dunhaven University during a multi-building classroom network upgrade, the decisive check is not merely that a configuration was entered: The supported part numbers pass physical link validation on both interfaces. That evidence connects the proposed correction to measurable forwarding or management behavior.

Incorrect Answers

A:

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: Two data-center switches must connect at short range but the purchasing team orders an optic/DAC combination incompatible with the platform. Changing the unrelated setting does not establish the required repair at Dunhaven University; the relevant confirmation would be: The supported part numbers pass physical link validation on both interfaces.

C:

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: Two data-center switches must connect at short range but the purchasing team orders an optic/DAC combination incompatible with the platform. Changing the unrelated setting does not establish the required repair at Dunhaven University; the relevant confirmation would be: The supported part numbers pass physical link validation on both interfaces.

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: Two data-center switches must connect at short range but the purchasing team orders an optic/DAC combination incompatible with the platform. Changing the unrelated setting does not establish the required repair at Dunhaven University; the relevant confirmation would be: The supported part numbers pass physical link validation on both interfaces.

Question 160

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: Two data-center switches must connect at short range but the purchasing team orders an optic/DAC combination incompatible with the platform. 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. The supported part numbers pass physical link validation on both interfaces.
  3. Both sides report a stable negotiated link with supported optics and acceptable signal levels.
  4. Environmental sensors remain inside supported limits under representative link and PoE load.

Explanation

Correct Answer

B:

The supported part numbers pass physical link validation on both interfaces. This is the relevant acceptance observation for the reported issue: Two data-center switches must connect at short range but the purchasing team orders an optic/DAC combination incompatible with the platform. The intended corrective choice is: Use the vendor-supported DAC or transceiver/cable combination for the specified distance and interface. 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:

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 Two data-center switches must connect at short range but the purchasing team orders an optic/DAC combination incompatible with the platform. The decisive result for Dunhaven University must instead be: The supported part numbers pass physical link validation on both interfaces.

C:

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 Two data-center switches must connect at short range but the purchasing team orders an optic/DAC combination incompatible with the platform. The decisive result for Dunhaven University must instead be: The supported part numbers pass physical link validation on both interfaces.

D:

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 Two data-center switches must connect at short range but the purchasing team orders an optic/DAC combination incompatible with the platform. The decisive result for Dunhaven University must instead be: The supported part numbers pass physical link validation on both interfaces.