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HP HPE7-A01 Bundle

Exam Code: HPE7-A01

Exam Name HPE Network Campus Access Professional

Certification Provider: HP

Corresponding Certification: HPE Aruba Networking Certified Professional - Campus Access

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HP HPE7-A01 Practice Test 8

Question 70

At Main Data Center, an access switch shows increasing runts and drops while the user complains of unstable wired access. Which AOS-CX or Aruba networking design choice resolves this specific dependency?

  1. Examine optics cabling transceiver support and duplex/speed at both ends before changing routes.
  2. Trace the forward and reverse forwarding path including route recursion and ACLs.
  3. Correct STP root priorities and protect edge or downstream boundaries as appropriate.
  4. Correct SSID-to-VLAN and switch trunk membership for the intended segment.

Explanation

Correct Answer

A:

For Main Data Center, the decisive mechanism is Physical-link errors. Layer 1/2 corruption can degrade packets even though link status remains up. Examine optics cabling transceiver support and duplex/speed at both ends before changing routes establishes the needed configuration in the case rather than merely measuring a symptom.

Incorrect Answers

B:

This is relevant to Routed blackhole, where route presence alone does not prove usable bidirectional forwarding In the Main Data Center case, Changing that neighboring feature does not implement the missing function. The specific mechanism is layer 1/2 corruption can degrade packets even though link status remains up

C:

This is relevant to STP convergence fault, where sTP role and root election determine the alternate Layer 2 forwarding path In the Main Data Center case, Changing that neighboring feature does not implement the missing function. The specific mechanism is layer 1/2 corruption can degrade packets even though link status remains up

D:

This is relevant to Wrong VLAN mapping, where wLAN-to-wired mapping errors can appear as a DHCP or authorization defect In the Main Data Center case, Changing that neighboring feature does not implement the missing function. The specific mechanism is layer 1/2 corruption can degrade packets even though link status remains up

Question 71

At North Library, an ArubaOS 10 gateway cluster has one unavailable member and remaining devices hit client-capacity ceilings. What should the engineer implement first to correct the stated condition?

  1. Use an RF plan with reasonable channel reuse and channel width for expected density.
  2. Perform an active site survey covering attenuation interference and realistic client density.
  3. Investigate noise/interference and target adequate SNR rather than raising AP power blindly.
  4. Use supported clustered gateway configuration with capacity and software-version compatibility.

Explanation

Correct Answer

D:

For North Library, the decisive mechanism is Gateway cluster resiliency. Tunneled service resilience requires usable gateway capacity and working AP tunnels. Use supported clustered gateway configuration with capacity and software-version compatibility establishes the needed configuration in the case rather than merely measuring a symptom.

Incorrect Answers

A:

This is relevant to Co-channel contention, where co-channel APs share contention airtime even if their signals are individually strong In the North Library case, Changing that neighboring feature does not implement the missing function. The specific mechanism is tunneled service resilience requires usable gateway capacity and working AP tunnels

B:

This is relevant to RF predictive versus active survey, where predictive RF planning does not replace measured real-world attenuation and utilization In the North Library case, Changing that neighboring feature does not implement the missing function. The specific mechanism is tunneled service resilience requires usable gateway capacity and working AP tunnels

C:

This is relevant to RSSI and SNR differentiation, where sNR accounts for interference floor; RSSI alone does not predict useful wireless throughput In the North Library case, Changing that neighboring feature does not implement the missing function. The specific mechanism is tunneled service resilience requires usable gateway capacity and working AP tunnels

Question 72

At Bayside Campus, a VSX keepalive link shares the same failure domain as the ISL and split detection is unreliable. Which implementation directly addresses this campus fault without replacing the wrong component?

  1. Enable supported loop protection on suitable edge ports and keep STP defenses active.
  2. Configure a separate reachable VSX keepalive path with valid source and peer addressing.
  3. Create a compatible gateway cluster with capacity and mobility requirements in Central.
  4. Configure supported VRRP virtual gateway ownership and priority on matched interfaces.

Explanation

Correct Answer

B:

For Bayside Campus, the decisive mechanism is VSX keepalive separation. The VSX keepalive helps distinguish peer failure from ISL failure. Configure a separate reachable VSX keepalive path with valid source and peer addressing establishes the needed configuration in the case rather than merely measuring a symptom.

Incorrect Answers

A:

This is relevant to Loop protection, where loop detection complements STP by containing accidental edge loops In the Bayside Campus case, Changing that neighboring feature does not implement the missing function. The specific mechanism is the VSX keepalive helps distinguish peer failure from ISL failure

C:

This is relevant to AOS 10 gateway cluster, where an AOS 10 gateway cluster improves tunneled WLAN availability but still needs correct forwarding and policy In the Bayside Campus case, Changing that neighboring feature does not implement the missing function. The specific mechanism is the VSX keepalive helps distinguish peer failure from ISL failure

D:

This is relevant to VRRP redundant gateway, where VRRP supplies virtual first-hop gateway failover between eligible routing peers In the Bayside Campus case, Changing that neighboring feature does not implement the missing function. The specific mechanism is the VSX keepalive helps distinguish peer failure from ISL failure

Question 73

At South Science Wing, a data uplink shows increasing egress queue drops during backup windows. Which test best differentiates real success from a merely healthy status light?

  1. Run the target application with representative subscribers and verify latency and load.
  2. Replay representative bursts and show fewer drops without starving important services.
  3. Walk test improved roaming and reduced overlap at the target busy locations.
  4. Observe suitable dual-band clients prefer 5 GHz without breaking legacy endpoints.

Explanation

Correct Answer

B:

For South Science Wing, the decisive mechanism is Congestion buffer drops. Short congestion bursts can exhaust queues before low-frequency monitoring notices. Replay representative bursts and show fewer drops without starving important services supplies measurable, case-relevant evidence that the intended behavior actually occurs.

Incorrect Answers

A:

This is relevant to Multicast-to-unicast tradeoff, where multicast-to-unicast can improve delivery to small receiver groups but adds per-recipient work In the South Science Wing case, That test could pass while the actual user-facing requirement still fails. The specific mechanism is short congestion bursts can exhaust queues before low-frequency monitoring notices

C:

This is relevant to RF power tuning, where excess transmit power can increase interference and sticky-client behavior In the South Science Wing case, That test could pass while the actual user-facing requirement still fails. The specific mechanism is short congestion bursts can exhaust queues before low-frequency monitoring notices

D:

This is relevant to Band steering under load, where band steering can guide dual-band association but depends on real RF and client support In the South Science Wing case, That test could pass while the actual user-facing requirement still fails. The specific mechanism is short congestion bursts can exhaust queues before low-frequency monitoring notices

Question 74

At Medical Annex, a tablet sees the SSID beacon but never completes association despite strong signal. Which diagnostic comparison would distinguish this fault from nearby mechanisms?

  1. Inspect switch PoE allocation operational draw power-denial and AP boot-event evidence.
  2. Compare operational speed duplex FCS errors and auto-negotiation on each side of the link.
  3. Inspect local and remote LLDP chassis port and management addresses against physical patch records.
  4. Inspect management frames for authentication association rejection status and security mismatch.

Explanation

Correct Answer

D:

For Medical Annex, the decisive mechanism is 802.11 association sequence. 802.11 discovery and association occur before user traffic can be successfully forwarded. Inspect management frames for authentication association rejection status and security mismatch is the most direct way to isolate this particular failure before making a change.

Incorrect Answers

A:

This is relevant to PoE power negotiation, where 802.3af at and bt power classes and the switch budget constrain device operation In the Medical Annex case, Those observations could be normal while the stated fault persists. The specific mechanism is 802.11 discovery and association occur before user traffic can be successfully forwarded

B:

This is relevant to Ethernet negotiation and duplex, where 802.3 physical link negotiation precedes Layer 2 and Layer 3 service validation In the Medical Annex case, Those observations could be normal while the stated fault persists. The specific mechanism is 802.11 discovery and association occur before user traffic can be successfully forwarded

C:

This is relevant to LLDP topology and discovery, where lLDP supplies adjacent-device identity without proving end-to-end routing or authentication In the Medical Annex case, Those observations could be normal while the stated fault persists. The specific mechanism is 802.11 discovery and association occur before user traffic can be successfully forwarded

Question 75

At Transit Operations Center, an AOS-CX template pushes the same management gateway to two differently addressed branches. Which controlled configuration is most likely to restore the required service?

  1. Configure compatible LACP membership and logical LAG settings across the supported endpoints.
  2. Choose approved bridge or tunneled forwarding mode and correctly map AP VLAN or gateway cluster.
  3. Set the AP switchport VLAN tagging PoE and DHCP reachability according to the deployment mode.
  4. Populate validated per-device variables and preview the rendered template before deployment.

Explanation

Correct Answer

D:

For Transit Operations Center, the decisive mechanism is Switch template variables. Template-based provisioning must resolve per-device parameters before switch configuration. Populate validated per-device variables and preview the rendered template before deployment establishes the needed configuration in the case rather than merely measuring a symptom.

Incorrect Answers

A:

This is relevant to LACP uplink provisioning, where lACP forms one logical bundle only when peers agree on aggregation parameters In the Transit Operations Center case, Changing that neighboring feature does not implement the missing function. The specific mechanism is template-based provisioning must resolve per-device parameters before switch configuration

B:

This is relevant to Bridge versus tunneled WLAN traffic, where bridge SSIDs forward locally; tunneled SSIDs use the gateway data path for policy In the Transit Operations Center case, Changing that neighboring feature does not implement the missing function. The specific mechanism is template-based provisioning must resolve per-device parameters before switch configuration

C:

This is relevant to AP uplink physical mapping, where aP service onboarding depends on both physical power and the upstream management network In the Transit Operations Center case, Changing that neighboring feature does not implement the missing function. The specific mechanism is template-based provisioning must resolve per-device parameters before switch configuration

Question 76

At Administration Block, an uplink forwards VLAN 120 but silently drops newly introduced VLAN 350. Which observation most directly isolates the likely cause before any change?

  1. Examine neighbor LLDP-MED TLVs and phone versus PC VLAN tags.
  2. Cross-check allowed VLAN list tagging and egress counters at both ends.
  3. Examine hit counters rule ordering and packet direction for a controlled flow.
  4. Examine frame-size drop counters PMTU behavior and VLAN/tunnel overhead.

Explanation

Correct Answer

B:

For Administration Block, the decisive mechanism is Tagged trunk allowlist. A VLAN trunk forwards only permitted tagged VLANs and its native VLAN according to configuration. Compare allowed VLAN list tagging and egress counters at both ends is the most direct way to isolate this particular failure before making a change.

Incorrect Answers

A:

This is relevant to Voice VLAN LLDP-MED, where lLDP-MED can advertise voice-network attributes while the switch enforces separate VLAN policies In the Administration Block case, Those observations could be normal while the stated fault persists. The specific mechanism is a VLAN trunk forwards only permitted tagged VLANs and its native VLAN according to configuration

C:

This is relevant to ACL direction and interface, where stateless ACL effectiveness depends on interface attachment direction and rule order In the Administration Block case, Those observations could be normal while the stated fault persists. The specific mechanism is a VLAN trunk forwards only permitted tagged VLANs and its native VLAN according to configuration

D:

This is relevant to End-to-end MTU and frames, where a path's effective MTU is limited by the smallest supported segment and encapsulation overhead In the Administration Block case, Those observations could be normal while the stated fault persists. The specific mechanism is a VLAN trunk forwards only permitted tagged VLANs and its native VLAN according to configuration

Question 77

At Arts Pavilion, a classroom lab floods multicast traffic and creates queue loss on the uplink. Which implementation directly addresses this campus fault without replacing the wrong component?

  1. Establish the switchport as an access member of the correct VLAN with matching policy.
  2. Synchronize native VLAN configuration and avoid using native VLAN for untrusted access where possible.
  3. Permit required tagged VLANs on both trunk interfaces while restricting unnecessary VLANs.
  4. Apply appropriate storm-control thresholds on eligible access ports without hiding topology issues.

Explanation

Correct Answer

D:

For Arts Pavilion, the decisive mechanism is Broadcast storm control. Storm control can rate-limit unwanted Layer 2 floods but does not remove physical loops. Apply appropriate storm-control thresholds on eligible access ports without hiding topology issues establishes the needed configuration in the case rather than merely measuring a symptom.

Incorrect Answers

A:

This is relevant to Access VLAN classification, where an access port carries untagged frames in one configured access VLAN In the Arts Pavilion case, Changing that neighboring feature does not implement the missing function. The specific mechanism is storm control can rate-limit unwanted Layer 2 floods but does not remove physical loops

B:

This is relevant to Native VLAN mismatch, where a native VLAN defines forwarding for untagged frames on a VLAN-aware trunk In the Arts Pavilion case, Changing that neighboring feature does not implement the missing function. The specific mechanism is storm control can rate-limit unwanted Layer 2 floods but does not remove physical loops

C:

This is relevant to Tagged trunk allowlist, where a VLAN trunk forwards only permitted tagged VLANs and its native VLAN according to configuration In the Arts Pavilion case, Changing that neighboring feature does not implement the missing function. The specific mechanism is storm control can rate-limit unwanted Layer 2 floods but does not remove physical loops

Question 78

At Garden Hall, a client sees strong -55 dBm RSSI yet low data rates beside an industrial interferer. What should be examined to confirm the actual failure mechanism?

  1. Inspect AP-to-gateway tunnel state client role and gateway return routing.
  2. Compare RSSI noise floor SNR and retransmissions per affected client.
  3. Inspect cluster health tunnel termination count CPU and per-member forwarding.
  4. Trace client frame exit from AP and switch VLAN path to enforcement.

Explanation

Correct Answer

B:

For Garden Hall, the decisive mechanism is RSSI and SNR differentiation. SNR accounts for interference floor; RSSI alone does not predict useful wireless throughput. Compare RSSI noise floor SNR and retransmissions per affected client is the most direct way to isolate this particular failure before making a change.

Incorrect Answers

A:

This is relevant to AOS 10 tunnel forwarding, where tunnel forwarding places client data on the gateway datapath rather than a local bridged VLAN In the Garden Hall case, Those observations could be normal while the stated fault persists. The specific mechanism is sNR accounts for interference floor; RSSI alone does not predict useful wireless throughput

C:

This is relevant to Gateway cluster resiliency, where tunneled service resilience requires usable gateway capacity and working AP tunnels In the Garden Hall case, Those observations could be normal while the stated fault persists. The specific mechanism is sNR accounts for interference floor; RSSI alone does not predict useful wireless throughput

D:

This is relevant to AOS 10 bridge forwarding, where bridge-mode SSID traffic exits at the local AP wired uplink rather than a tunnel gateway In the Garden Hall case, Those observations could be normal while the stated fault persists. The specific mechanism is sNR accounts for interference floor; RSSI alone does not predict useful wireless throughput

Question 79

At Bayside Campus, an access switch discards packets during microbursts despite modest one-minute interface utilization. Which TWO responses together provide a direct implementation and a continuing safeguard for the stated risk? Select TWO answers.

  1. Avoid assuming average link utilization proves absence of microbursts.
  2. Investigate bursty egress congestion and use supported queue/buffer or capacity controls.
  3. Evaluate supported multicast conversion and membership control for the audience size.
  4. Allow documented compatibility cases instead of forcing a universal band cutoff.

Explanation

Correct Answers

A:

This is the continuing risk-control element for Bayside Campus. Avoid assuming average link utilization proves absence of microbursts prevents a future regression or unauthorized relaxation of the repair; it complements, rather than replaces, the implementation.

B:

This is the implementation element for the Bayside Campus case: Short congestion bursts can exhaust queues before low-frequency monitoring notices. The specific action Investigate bursty egress congestion and use supported queue/buffer or capacity controls addresses the stated fault; the question also requires a persistent risk control.

Incorrect Answers

C:

This may be a configuration step for Multicast-to-unicast tradeoff: Multicast-to-unicast can improve delivery to small receiver groups but adds per-recipient work. It does not resolve the Congestion buffer drops requirement in Bayside Campus and is not one of the two controls requested. The direct mechanism here is short congestion bursts can exhaust queues before low-frequency monitoring notices

D:

This may be an ongoing precaution for Band steering under load: Band steering can guide dual-band association but depends on real RF and client support. It does not resolve the Congestion buffer drops requirement in Bayside Campus and is not one of the two controls requested. The direct mechanism here is short congestion bursts can exhaust queues before low-frequency monitoring notices

Question 80

At New Teaching Block, a closet uplink fails and clients wait too long for the alternate Layer 2 path. Which check provides the most useful information for fixing this deployment?

  1. Inspect FCS CRC counters optical levels and negotiated mode.
  2. Inspect authorized port VLAN DHCP DISCOVER/OFFER and relay counters.
  3. Inspect topology-change events root path role and transition timing.
  4. Inspect Access-Request policy trace and certificate-validation logs.

Explanation

Correct Answer

C:

For New Teaching Block, the decisive mechanism is STP convergence fault. STP role and root election determine the alternate Layer 2 forwarding path. Inspect topology-change events root path role and transition timing is the most direct way to isolate this particular failure before making a change.

Incorrect Answers

A:

This is relevant to Physical-link errors, where layer 1/2 corruption can degrade packets even though link status remains up In the New Teaching Block case, Those observations could be normal while the stated fault persists. The specific mechanism is sTP role and root election determine the alternate Layer 2 forwarding path

B:

This is relevant to DHCP address-acquisition failure, where network authorization and DHCP allocation are separate stages requiring their own diagnostics In the New Teaching Block case, Those observations could be normal while the stated fault persists. The specific mechanism is sTP role and root election determine the alternate Layer 2 forwarding path

D:

This is relevant to RADIUS Access-Reject root cause, where an explicit RADIUS reject can come from credential validation or authorization policy In the New Teaching Block case, Those observations could be normal while the stated fault persists. The specific mechanism is sTP role and root election determine the alternate Layer 2 forwarding path