HP HPE7-A01 Practice Test 71
Question 700
New student devices associate to the WLAN but remain self-assigned because no DHCP offer arrives after a core VLAN migration. The change fails acceptance. What is the safest targeted restoration action?
- Restore the last functioning resolver DHCP option while preserving the healthy network association.
- Restore the previous valid server path and authentication profile rather than globally bypassing admission control.
- Restore the last stable channel and power plan if the adjustment introduces a new coverage gap.
- Reinstate the prior DHCP relay and client scope while isolating the route or server change.
Explanation
Correct Answer
D:Reinstate the prior DHCP relay and client scope while isolating the route or server change. Wi-Fi association and Ethernet link status do not prove DHCP success; the exchange depends on server access and subnet-correct relay. The focused rollback restores a known safe baseline before another change attempt. The decision applies to the described dhcp discover without offer situation.
Incorrect Answers
A:Restore the last functioning resolver DHCP option while preserving the healthy network association. This instead concerns dns resolution versus access association. Name resolution failures can mimic general network outages even when identity authentication, IP addressing and routing already work. It would not safely roll back the relevant failed change. The immediate problem concerns dhcp discover without offer.
B:Restore the previous valid server path and authentication profile rather than globally bypassing admission control. This instead concerns radius reject versus timeout. Access-Reject means the server evaluated and denied the request; a timeout indicates missing response and calls for different isolation. It would not safely roll back the relevant failed change. The immediate problem concerns dhcp discover without offer.
C:Restore the last stable channel and power plan if the adjustment introduces a new coverage gap. This instead concerns rf interference versus weak coverage. Strong received signal does not rule out airtime interference or contention; troubleshooting must measure RF quality as well as power. It would not safely roll back the relevant failed change. The immediate problem concerns dhcp discover without offer.
Question 701
A classroom wired computer sends DHCPDISCOVER repeatedly yet the network server never returns a lease despite link-up. Before implementing a remedy, what should the engineer check first?
- Review DNS resolver addresses, lookup responses and direct IP connectivity separately from WLAN authentication.
- Cross-check RADIUS response codes, timeouts and server logs to distinguish rejected credentials from unreachable authentication infrastructure.
- Review client DHCP packets, SVI relay configuration and the server's scope or return path for the VLAN.
- Review RF spectrum activity, channel utilization, retries and SNR at the affected client position.
Explanation
Correct Answer
C:Review client DHCP packets, SVI relay configuration and the server's scope or return path for the VLAN. Wi-Fi association and Ethernet link status do not prove DHCP success; the exchange depends on server access and subnet-correct relay. The evidence check isolates the relevant prerequisite before a disruptive change. The decision applies to the described dhcp discover without offer situation.
Incorrect Answers
A:Review DNS resolver addresses, lookup responses and direct IP connectivity separately from WLAN authentication. This instead concerns dns resolution versus access association. Name resolution failures can mimic general network outages even when identity authentication, IP addressing and routing already work. It does not isolate the cause of the stated incident. The immediate problem concerns dhcp discover without offer.
B:Cross-check RADIUS response codes, timeouts and server logs to distinguish rejected credentials from unreachable authentication infrastructure. This instead concerns radius reject versus timeout. Access-Reject means the server evaluated and denied the request; a timeout indicates missing response and calls for different isolation. It does not isolate the cause of the stated incident. The immediate problem concerns dhcp discover without offer.
D:Review RF spectrum activity, channel utilization, retries and SNR at the affected client position. This instead concerns rf interference versus weak coverage. Strong received signal does not rule out airtime interference or contention; troubleshooting must measure RF quality as well as power. It does not isolate the cause of the stated incident. The immediate problem concerns dhcp discover without offer.
Question 702
A classroom wired computer sends DHCPDISCOVER repeatedly yet the network server never returns a lease despite link-up. After the root cause is confirmed, which narrowly scoped configuration action should be selected?
- Deliver reachable approved DNS service information without changing already-successful WLAN admission settings.
- Reinstate the correct relay, authorized DHCP scope and routing for the affected broadcast domain.
- Fix the specific credential or policy issue for rejects and the transport or server path for timeouts for the affected campus deployment.
- Change channel plan, AP placement or source interference handling based on measured conditions rather than only boosting power for the affected campus deployment.
Explanation
Correct Answer
B:Reinstate the correct relay, authorized DHCP scope and routing for the affected broadcast domain. Wi-Fi association and Ethernet link status do not prove DHCP success; the exchange depends on server access and subnet-correct relay. The proposed configuration targets the stated dependency without broadening unrelated access. The decision applies to the described dhcp discover without offer situation.
Incorrect Answers
A:Deliver reachable approved DNS service information without changing already-successful WLAN admission settings. This instead concerns dns resolution versus access association. Name resolution failures can mimic general network outages even when identity authentication, IP addressing and routing already work. It would not implement the specifically required change. The immediate problem concerns dhcp discover without offer.
C:Fix the specific credential or policy issue for rejects and the transport or server path for timeouts for the affected campus deployment. This instead concerns radius reject versus timeout. Access-Reject means the server evaluated and denied the request; a timeout indicates missing response and calls for different isolation. It would not implement the specifically required change. The immediate problem concerns dhcp discover without offer.
D:Change channel plan, AP placement or source interference handling based on measured conditions rather than only boosting power for the affected campus deployment. This instead concerns rf interference versus weak coverage. Strong received signal does not rule out airtime interference or contention; troubleshooting must measure RF quality as well as power. It would not implement the specifically required change. The immediate problem concerns dhcp discover without offer.
Question 703
A classroom wired computer sends DHCPDISCOVER repeatedly yet the network server never returns a lease despite link-up. A deployment job reports success. Which observed result would actually validate the affected service?
- Confirm a new client completes Discover-Offer-Request-Ack and receives the approved gateway options.
- Verify hostname lookup returns expected records and application access works through the intended name.
- Confirm bad credentials remain rejected while a valid test account completes an authorized RADIUS transaction.
- Confirm fewer retries and better representative throughput under equivalent RF load.
Explanation
Correct Answer
A:Confirm a new client completes Discover-Offer-Request-Ack and receives the approved gateway options. Wi-Fi association and Ethernet link status do not prove DHCP success; the exchange depends on server access and subnet-correct relay. The result tests actual working behavior, not merely a saved configuration. The decision applies to the described dhcp discover without offer situation.
Incorrect Answers
B:Verify hostname lookup returns expected records and application access works through the intended name. This instead concerns dns resolution versus access association. Name resolution failures can mimic general network outages even when identity authentication, IP addressing and routing already work. It would not establish that this function actually works. The immediate problem concerns dhcp discover without offer.
C:Confirm bad credentials remain rejected while a valid test account completes an authorized RADIUS transaction. This instead concerns radius reject versus timeout. Access-Reject means the server evaluated and denied the request; a timeout indicates missing response and calls for different isolation. It would not establish that this function actually works. The immediate problem concerns dhcp discover without offer.
D:Confirm fewer retries and better representative throughput under equivalent RF load. This instead concerns rf interference versus weak coverage. Strong received signal does not rule out airtime interference or contention; troubleshooting must measure RF quality as well as power. It would not establish that this function actually works. The immediate problem concerns dhcp discover without offer.
Question 704
A classroom wired computer sends DHCPDISCOVER repeatedly yet the network server never returns a lease despite link-up. If the revised setting disrupts users, which controlled rollback would be most relevant?
- Reinstate the last functioning resolver DHCP option while preserving the healthy network association.
- Reinstate the previous valid server path and authentication profile rather than globally bypassing admission control.
- Reinstate the last stable channel and power plan if the adjustment introduces a new coverage gap.
- Restore the prior DHCP relay and client scope while isolating the route or server change.
Explanation
Correct Answer
D:Restore the prior DHCP relay and client scope while isolating the route or server change. Wi-Fi association and Ethernet link status do not prove DHCP success; the exchange depends on server access and subnet-correct relay. The focused rollback restores a known safe baseline before another change attempt. The decision applies to the described dhcp discover without offer situation.
Incorrect Answers
A:Reinstate the last functioning resolver DHCP option while preserving the healthy network association. This instead concerns dns resolution versus access association. Name resolution failures can mimic general network outages even when identity authentication, IP addressing and routing already work. It would not safely roll back the relevant failed change. The immediate problem concerns dhcp discover without offer.
B:Reinstate the previous valid server path and authentication profile rather than globally bypassing admission control. This instead concerns radius reject versus timeout. Access-Reject means the server evaluated and denied the request; a timeout indicates missing response and calls for different isolation. It would not safely roll back the relevant failed change. The immediate problem concerns dhcp discover without offer.
C:Reinstate the last stable channel and power plan if the adjustment introduces a new coverage gap. This instead concerns rf interference versus weak coverage. Strong received signal does not rule out airtime interference or contention; troubleshooting must measure RF quality as well as power. It would not safely roll back the relevant failed change. The immediate problem concerns dhcp discover without offer.
Question 705
A campus laptop authenticates and pings the server IP but reports all intranet application names as unreachable. Which investigation would best isolate the immediate network dependency?
- Compare RADIUS response codes, timeouts and server logs to distinguish rejected credentials from unreachable authentication infrastructure.
- Inspect RF spectrum activity, channel utilization, retries and SNR at the affected client position.
- Inspect physical-layer error counters, transceiver diagnostics, negotiated speed and cable or optic compatibility.
- Inspect DNS resolver addresses, lookup responses and direct IP connectivity separately from WLAN authentication.
Explanation
Correct Answer
D:Inspect DNS resolver addresses, lookup responses and direct IP connectivity separately from WLAN authentication. Name resolution failures can mimic general network outages even when identity authentication, IP addressing and routing already work. The evidence check isolates the relevant prerequisite before a disruptive change. The decision applies to the described dns resolution versus access association situation.
Incorrect Answers
A:Compare RADIUS response codes, timeouts and server logs to distinguish rejected credentials from unreachable authentication infrastructure. This instead concerns radius reject versus timeout. Access-Reject means the server evaluated and denied the request; a timeout indicates missing response and calls for different isolation. It does not isolate the cause of the stated incident. The immediate problem concerns dns resolution versus access association.
B:Inspect RF spectrum activity, channel utilization, retries and SNR at the affected client position. This instead concerns rf interference versus weak coverage. Strong received signal does not rule out airtime interference or contention; troubleshooting must measure RF quality as well as power. It does not isolate the cause of the stated incident. The immediate problem concerns dns resolution versus access association.
C:Inspect physical-layer error counters, transceiver diagnostics, negotiated speed and cable or optic compatibility. This instead concerns physical link crc and optical errors. Physical-layer faults can corrupt frames without taking the interface administratively down; clean routing adjacency does not rule them out. It does not isolate the cause of the stated incident. The immediate problem concerns dns resolution versus access association.
Question 706
A campus laptop authenticates and pings the server IP but reports all intranet application names as unreachable. Which specific corrective design step best meets the stated campus requirement?
- Fix the specific credential or policy issue for rejects and the transport or server path for timeouts.
- Change channel plan, AP placement or source interference handling based on measured conditions rather than only boosting power.
- Provide reachable approved DNS service information without changing already-successful WLAN admission settings.
- Repair the damaged or mismatched cabling or transceiver and align supported link parameters at both ends.
Explanation
Correct Answer
C:Provide reachable approved DNS service information without changing already-successful WLAN admission settings. Name resolution failures can mimic general network outages even when identity authentication, IP addressing and routing already work. The proposed configuration targets the stated dependency without broadening unrelated access. The decision applies to the described dns resolution versus access association situation.
Incorrect Answers
A:Fix the specific credential or policy issue for rejects and the transport or server path for timeouts. This instead concerns radius reject versus timeout. Access-Reject means the server evaluated and denied the request; a timeout indicates missing response and calls for different isolation. It would not implement the specifically required change. The immediate problem concerns dns resolution versus access association.
B:Change channel plan, AP placement or source interference handling based on measured conditions rather than only boosting power. This instead concerns rf interference versus weak coverage. Strong received signal does not rule out airtime interference or contention; troubleshooting must measure RF quality as well as power. It would not implement the specifically required change. The immediate problem concerns dns resolution versus access association.
D:Repair the damaged or mismatched cabling or transceiver and align supported link parameters at both ends. This instead concerns physical link crc and optical errors. Physical-layer faults can corrupt frames without taking the interface administratively down; clean routing adjacency does not rule them out. It would not implement the specifically required change. The immediate problem concerns dns resolution versus access association.
Question 707
A campus laptop authenticates and pings the server IP but reports all intranet application names as unreachable. Following a targeted change, which acceptance test would most directly demonstrate success?
- Verify bad credentials remain rejected while a valid test account completes an authorized RADIUS transaction.
- Confirm hostname lookup returns expected records and application access works through the intended name.
- Verify fewer retries and better representative throughput under equivalent RF load.
- Verify new CRC and alignment error rates stop rising during representative traffic.
Explanation
Correct Answer
B:Confirm hostname lookup returns expected records and application access works through the intended name. Name resolution failures can mimic general network outages even when identity authentication, IP addressing and routing already work. The result tests actual working behavior, not merely a saved configuration. The decision applies to the described dns resolution versus access association situation.
Incorrect Answers
A:Verify bad credentials remain rejected while a valid test account completes an authorized RADIUS transaction. This instead concerns radius reject versus timeout. Access-Reject means the server evaluated and denied the request; a timeout indicates missing response and calls for different isolation. It would not establish that this function actually works. The immediate problem concerns dns resolution versus access association.
C:Verify fewer retries and better representative throughput under equivalent RF load. This instead concerns rf interference versus weak coverage. Strong received signal does not rule out airtime interference or contention; troubleshooting must measure RF quality as well as power. It would not establish that this function actually works. The immediate problem concerns dns resolution versus access association.
D:Verify new CRC and alignment error rates stop rising during representative traffic. This instead concerns physical link crc and optical errors. Physical-layer faults can corrupt frames without taking the interface administratively down; clean routing adjacency does not rule them out. It would not establish that this function actually works. The immediate problem concerns dns resolution versus access association.
Question 708
A campus laptop authenticates and pings the server IP but reports all intranet application names as unreachable. The change fails acceptance. What is the safest targeted restoration action?
- Restore the last functioning resolver DHCP option while preserving the healthy network association.
- Restore the previous valid server path and authentication profile rather than globally bypassing admission control.
- Restore the last stable channel and power plan if the adjustment introduces a new coverage gap.
- Return to a tested optic and cable path and roll back the unsupported interface changes if errors persist.
Explanation
Correct Answer
A:Restore the last functioning resolver DHCP option while preserving the healthy network association. Name resolution failures can mimic general network outages even when identity authentication, IP addressing and routing already work. The focused rollback restores a known safe baseline before another change attempt. The decision applies to the described dns resolution versus access association situation.
Incorrect Answers
B:Restore the previous valid server path and authentication profile rather than globally bypassing admission control. This instead concerns radius reject versus timeout. Access-Reject means the server evaluated and denied the request; a timeout indicates missing response and calls for different isolation. It would not safely roll back the relevant failed change. The immediate problem concerns dns resolution versus access association.
C:Restore the last stable channel and power plan if the adjustment introduces a new coverage gap. This instead concerns rf interference versus weak coverage. Strong received signal does not rule out airtime interference or contention; troubleshooting must measure RF quality as well as power. It would not safely roll back the relevant failed change. The immediate problem concerns dns resolution versus access association.
D:Return to a tested optic and cable path and roll back the unsupported interface changes if errors persist. This instead concerns physical link crc and optical errors. Physical-layer faults can corrupt frames without taking the interface administratively down; clean routing adjacency does not rule them out. It would not safely roll back the relevant failed change. The immediate problem concerns dns resolution versus access association.
Question 709
A visitor's Wi-Fi device has a valid address and default route yet cannot open cloud sites because the offered DNS resolver is stale. Before implementing a remedy, what should the engineer check first?
- Cross-check RADIUS response codes, timeouts and server logs to distinguish rejected credentials from unreachable authentication infrastructure.
- Review RF spectrum activity, channel utilization, retries and SNR at the affected client position.
- Review physical-layer error counters, transceiver diagnostics, negotiated speed and cable or optic compatibility.
- Review DNS resolver addresses, lookup responses and direct IP connectivity separately from WLAN authentication.
Explanation
Correct Answer
D:Review DNS resolver addresses, lookup responses and direct IP connectivity separately from WLAN authentication. Name resolution failures can mimic general network outages even when identity authentication, IP addressing and routing already work. The evidence check isolates the relevant prerequisite before a disruptive change. The decision applies to the described dns resolution versus access association situation.
Incorrect Answers
A:Cross-check RADIUS response codes, timeouts and server logs to distinguish rejected credentials from unreachable authentication infrastructure. This instead concerns radius reject versus timeout. Access-Reject means the server evaluated and denied the request; a timeout indicates missing response and calls for different isolation. It does not isolate the cause of the stated incident. The immediate problem concerns dns resolution versus access association.
B:Review RF spectrum activity, channel utilization, retries and SNR at the affected client position. This instead concerns rf interference versus weak coverage. Strong received signal does not rule out airtime interference or contention; troubleshooting must measure RF quality as well as power. It does not isolate the cause of the stated incident. The immediate problem concerns dns resolution versus access association.
C:Review physical-layer error counters, transceiver diagnostics, negotiated speed and cable or optic compatibility. This instead concerns physical link crc and optical errors. Physical-layer faults can corrupt frames without taking the interface administratively down; clean routing adjacency does not rule them out. It does not isolate the cause of the stated incident. The immediate problem concerns dns resolution versus access association.
Question 710
A visitor's Wi-Fi device has a valid address and default route yet cannot open cloud sites because the offered DNS resolver is stale. After the root cause is confirmed, which narrowly scoped configuration action should be selected?
- Fix the specific credential or policy issue for rejects and the transport or server path for timeouts for the affected campus deployment.
- Change channel plan, AP placement or source interference handling based on measured conditions rather than only boosting power for the affected campus deployment.
- Deliver reachable approved DNS service information without changing already-successful WLAN admission settings.
- Correct the damaged or mismatched cabling or transceiver and align supported link parameters at both ends.
Explanation
Correct Answer
C:Deliver reachable approved DNS service information without changing already-successful WLAN admission settings. Name resolution failures can mimic general network outages even when identity authentication, IP addressing and routing already work. The proposed configuration targets the stated dependency without broadening unrelated access. The decision applies to the described dns resolution versus access association situation.
Incorrect Answers
A:Fix the specific credential or policy issue for rejects and the transport or server path for timeouts for the affected campus deployment. This instead concerns radius reject versus timeout. Access-Reject means the server evaluated and denied the request; a timeout indicates missing response and calls for different isolation. It would not implement the specifically required change. The immediate problem concerns dns resolution versus access association.
B:Change channel plan, AP placement or source interference handling based on measured conditions rather than only boosting power for the affected campus deployment. This instead concerns rf interference versus weak coverage. Strong received signal does not rule out airtime interference or contention; troubleshooting must measure RF quality as well as power. It would not implement the specifically required change. The immediate problem concerns dns resolution versus access association.
D:Correct the damaged or mismatched cabling or transceiver and align supported link parameters at both ends. This instead concerns physical link crc and optical errors. Physical-layer faults can corrupt frames without taking the interface administratively down; clean routing adjacency does not rule them out. It would not implement the specifically required change. The immediate problem concerns dns resolution versus access association.