HP HPE7-A01 Practice Test 17

Question 160

The campus team is closing a service ticket about this condition: One workstation fails 802.1X while others pass on the same switch. Which validation step is most relevant?

Revert one safe test change and verify incident symptoms.
Test the affected user certificate against a known-good endpoint.
Align interface-event and client-failure timestamps.
Capture affected VLAN tags at both ends.

Explanation

Correct Answer

Per-endpoint authentication problems are not necessarily switch-wide faults. Test the affected user certificate against a known-good endpoint directly tests the desired behavior.

Incorrect Answers

Change correlation narrows likely causes without assuming every recent edit is wrong. That observation tests a different condition, not the required result.

End-state snapshots may miss transient faults. That observation tests a different condition, not the required result.

A trunk can pass some VLANs while filtering another. That observation tests a different condition, not the required result.

Question 161

A monitoring system only needs periodic traffic samples rather than complete packets. Which change most directly meets this campus requirement?

Use supported sFlow telemetry instead of full packet mirroring.
Enable adequate configuration logging, backups and change records.
Use the documented authenticated REST API and appropriate role.
Export a supported backup or checkpoint and record rollback steps.

Explanation

Correct Answer

sFlow samples packets and interface counters for flow visibility. The engineer should use supported sFlow telemetry instead of full packet mirroring.

Incorrect Answers

Logs and configuration diffs help identify who changed what and when. It is not a direct remedy for the condition described.

APIs allow programmatic access while permissions control scope. It is not a direct remedy for the condition described.

Recovery requires a known-good configuration and compatible restore method. It is not a direct remedy for the condition described.

Question 162

During campus implementation, a guest WLAN should isolate one visitor from another on the same SSID. What should the engineer configure or correct?

Review ARM/AirMatch bounds and actual cell overlap.
Verify neighbor assistance and actual roam trigger/timing.
Inspect SSID-to-VLAN mapping and downstream trunk availability.
Apply client isolation or appropriate role-based segmentation.

Explanation

Correct Answer

Guest devices should not gain unnecessary direct peer reachability. The engineer should apply client isolation or appropriate role-based segmentation.

Incorrect Answers

Excess transmit power can enlarge contention cells and delay roaming. It is not a direct remedy for the condition described.

802.11k/v can aid roaming decisions but client behavior still matters. It is not a direct remedy for the condition described.

Client IP assignment follows the effective user VLAN and DHCP scope. It is not a direct remedy for the condition described.

Question 163

Clients associate to a WLAN but cannot obtain an IPv4 address during a temporary DHCP outage. Which diagnostic action should be taken before adjusting radio settings?

Trace DHCP handshake separately from radio authentication.
Adjust cell size, minimum basic rates and roaming policy carefully.
Investigate airtime fairness and legacy data-rate impact.
Measure SNR, interference and channel busy time.

Explanation

Correct Answer

Successful association does not guarantee an IPv4 address. The engineer should trace DHCP handshake separately from radio authentication.

Incorrect Answers

Excess cell reach and very low data rates can promote sticky clients. It is not a direct remedy for the condition described.

A slow client can occupy much airtime for comparatively few bytes. It is not a direct remedy for the condition described.

RSSI alone cannot identify noise or contention-driven retries. It is not a direct remedy for the condition described.

Question 164

Wi-Fi retry rates rise only when neighboring APs become busy. Which change most directly meets this campus requirement?

Compare local supplicant identity, certificate and role policy.
Compare RF interference, client density and scheduled activities by time.
Trace DHCP and assigned VLAN before RF optimization.
Investigate co-channel airtime contention.

Explanation

Correct Answer

Competing transmitters on the same channel can drive delay and retries. The engineer should investigate co-channel airtime contention.

Incorrect Answers

Per-endpoint authentication problems are not necessarily switch-wide faults. It is not a direct remedy for the condition described.

Time-correlated environmental changes can explain periodic performance drops. It is not a direct remedy for the condition described.

Association and authentication are separate from address assignment. It is not a direct remedy for the condition described.

Question 165

A network team reports the following condition: Wi-Fi 6 clients have poor throughput during crowded OFDMA periods. Select the most appropriate response.

Reserve suitable queue priority and reduce oversubscription.
Review channel reuse and power plan using a measured survey.
Check negotiated HE capability and scheduler/radio utilization.
Tune scheduling, shaping and available path capacity.

Explanation

Correct Answer

OFDMA benefits depend on both AP and client support and actual traffic mix. The engineer should check negotiated HE capability and scheduler/radio utilization.

Incorrect Answers

Full link saturation exposes serialization and queuing delays. It is not a direct remedy for the condition described.

Co-channel interference causes shared airtime contention. It is not a direct remedy for the condition described.

Long egress queues create delay and jitter under sustained overload. It is not a direct remedy for the condition described.

Question 166

The campus team is closing a service ticket about this condition: Several adjacent APs all use one 2.4 GHz channel. Which validation step is most relevant?

Authenticate an approved and untrusted certificate and inspect RADIUS results.
Compare BSS color assignments and airtime/retry behavior across cells.
Survey co-channel overlap and voice latency across the channel plan.
Compare channel maps and CCI before and after channel changes.

Explanation

Correct Answer

Overlapping 2.4 GHz cells contend and interfere on shared channels. Compare channel maps and CCI before and after channel changes directly tests the desired behavior.

Incorrect Answers

EAP-TLS uses certificate authentication and requires valid trust chains. That observation tests a different condition, not the required result.

BSS coloring can help distinguish overlapping transmissions under supported spatial reuse. That observation tests a different condition, not the required result.

Wider channels can increase overlap and reduce available independent cells. That observation tests a different condition, not the required result.

Question 167

The campus team is closing a service ticket about this condition: A PoE access switch has 48 AP/phone endpoints and insufficient capacity. Which validation step is most relevant?

Verify device inventory status, DNS reachability and connection diagnostics.
Compare planned demand, per-port allocation and system remaining budget.
Check LLDP-MED voice information and both endpoints' effective VLANs.
Inspect LACP partner state and each member's forwarding role.

Explanation

Correct Answer

A shared PoE power budget can limit the number of fully powered endpoints. Compare planned demand, per-port allocation and system remaining budget directly tests the desired behavior.

Incorrect Answers

Cloud onboarding requires identity, entitlement and network communication, not only an IP address. That observation tests a different condition, not the required result.

Voice and data traffic can share a port while retaining distinct VLAN and policy treatment. That observation tests a different condition, not the required result.

A LAG requires compatible peer negotiation and member parameters. That observation tests a different condition, not the required result.

Question 168

During campus implementation, a protected uplink hears a superior BPDU from an unexpected device. What should the engineer configure or correct?

Check the relevant root-guard role on that uplink.
Use LLDP neighbor and port descriptions instead of guessing cabling.
Enable DHCP snooping with uplinks designated as trusted.
Configure storm-control thresholds and loop prevention as appropriate.

Explanation

Correct Answer

Root guard prevents an unplanned switch from taking over the root position. The engineer should check the relevant root-guard role on that uplink.

Incorrect Answers

LLDP advertises directly connected device identity and capabilities. It is not a direct remedy for the condition described.

DHCP snooping blocks unauthorized server replies on untrusted ports. It is not a direct remedy for the condition described.

Storm control limits excess broadcast or multicast traffic while loops are fixed. It is not a direct remedy for the condition described.

Question 169

During campus implementation, a switch alert has false positives every morning during scheduled backups. What should the engineer configure or correct?

Correlate UXI end-to-end tests with DNS, WAN and RF state.
Export a supported backup or checkpoint and record rollback steps.
Tune threshold/timing while preserving raw telemetry.
Use supported port mirroring to a capture destination.

Explanation

Correct Answer

Alert policy can be refined without losing underlying monitoring data. The engineer should tune threshold/timing while preserving raw telemetry.

Incorrect Answers

Good RSSI does not prove application-path quality. It is not a direct remedy for the condition described.

Recovery requires a known-good configuration and compatible restore method. It is not a direct remedy for the condition described.

Mirroring copies selected interface traffic for protocol analysis. It is not a direct remedy for the condition described.

Question 170

An engineer is planning corrective work because a router has OSPF area 0 on one uplink and area 20 on another. Which step should be prioritized?

Apply redistribution with explicit route maps or permitted prefixes.
Deploy suitable route reflectors and client relationships.
Use supported NSSA external route handling instead of ordinary stub settings.
Ensure area border routing is planned and configured correctly.

Explanation

Correct Answer

An ABR connects area 0 with additional OSPF areas. The engineer should ensure area border routing is planned and configured correctly.

Incorrect Answers

Unfiltered redistribution can advertise unintended internal routes. It is not a direct remedy for the condition described.

Route reflection reduces the iBGP full-mesh requirement. It is not a direct remedy for the condition described.

NSSA permits controlled local external redistribution in a stub-like area. It is not a direct remedy for the condition described.

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Pass Your HP HPE7-A01 Exam Easy!

Question 160

Explanation

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Question 161

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Question 162

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Question 163

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Question 164

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Question 165

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Question 166

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Question 167

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Question 168

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Question 169

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Question 170

Explanation

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HPE Network Campus Access Professional (HPE7-A01) Practice Tests