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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 17

Question 160

At Riverside Building, a streaming classroom sees multicast stop when the only IGMP querier disappears. What should be examined to confirm the actual failure mechanism?

  1. Examine querier election receiver joins and multicast group forwarding table.
  2. Examine untagged packet capture and both peers native VLAN configuration.
  3. Cross-check allowed VLAN list tagging and egress counters at both ends.
  4. Examine interface VLAN mode learned MAC address and DHCP lease subnet.

Explanation

Correct Answer

A:

For Riverside Building, the decisive mechanism is IGMP multicast snooping. IGMP snooping constrains IPv4 multicast by observed group memberships. Inspect querier election receiver joins and multicast group forwarding table is the most direct way to isolate this particular failure before making a change.

Incorrect Answers

B:

This is relevant to Native VLAN mismatch, where a native VLAN defines forwarding for untagged frames on a VLAN-aware trunk In the Riverside Building case, Those observations could be normal while the stated fault persists. The specific mechanism is iGMP snooping constrains IPv4 multicast by observed group memberships

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 Riverside Building case, Those observations could be normal while the stated fault persists. The specific mechanism is iGMP snooping constrains IPv4 multicast by observed group memberships

D:

This is relevant to Access VLAN classification, where an access port carries untagged frames in one configured access VLAN In the Riverside Building case, Those observations could be normal while the stated fault persists. The specific mechanism is iGMP snooping constrains IPv4 multicast by observed group memberships

Question 161

At Medical Annex, a camera segment should allow only media servers and DNS, yet a broad permit remains. Which controlled acceptance test demonstrates the required behavior?

  1. Test approved media flows and blocked finance-server access.
  2. Check clients securely verify the intended RADIUS server before joining.
  3. Prove a trusted unexpired certificate succeeds while an untrusted client fails.
  4. Validate enterprise clients join securely with accepted ciphers and certificates.

Explanation

Correct Answer

A:

For Medical Annex, the decisive mechanism is Access ACL segmentation. A policy object is effective only where attached to the forwarding path. Test approved media flows and blocked finance-server access supplies measurable, case-relevant evidence that the intended behavior actually occurs.

Incorrect Answers

B:

This is relevant to EAP-TLS RADIUS server certificate, where mutual TLS requires client-side confidence in the EAP server identity In the Medical Annex case, That test could pass while the actual user-facing requirement still fails. The specific mechanism is a policy object is effective only where attached to the forwarding path

C:

This is relevant to EAP-TLS client certificate validation, where eAP-TLS authenticates possession of the client certificate private key and validates trust In the Medical Annex case, That test could pass while the actual user-facing requirement still fails. The specific mechanism is a policy object is effective only where attached to the forwarding path

D:

This is relevant to WPA3 Enterprise compatibility, where wPA3-Enterprise builds on supported enterprise security capabilities with stronger protections In the Medical Annex case, That test could pass while the actual user-facing requirement still fails. The specific mechanism is a policy object is effective only where attached to the forwarding path

Question 162

At Lakeside Classroom, tunneled staff SSID clients cannot access services when gateway cluster reachability is lost. How should the engineer validate success against the stated requirement?

  1. Measure improved SNR and reduced retry rate without oversizing transmit power.
  2. Confirm coverage and capacity with representative real devices and occupancy.
  3. Test authorized traffic through the designated gateway while a disallowed flow is blocked.
  4. Observe lower airtime contention and stable throughput during concurrent client use.

Explanation

Correct Answer

C:

For Lakeside Classroom, the decisive mechanism is AOS 10 tunnel forwarding. Tunnel forwarding places client data on the gateway datapath rather than a local bridged VLAN. Test authorized traffic through the designated gateway while a disallowed flow is blocked supplies measurable, case-relevant evidence that the intended behavior actually occurs.

Incorrect Answers

A:

This is relevant to RSSI and SNR differentiation, where sNR accounts for interference floor; RSSI alone does not predict useful wireless throughput In the Lakeside Classroom case, That test could pass while the actual user-facing requirement still fails. The specific mechanism is tunnel forwarding places client data on the gateway datapath rather than a local bridged VLAN

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 Lakeside Classroom case, That test could pass while the actual user-facing requirement still fails. The specific mechanism is tunnel forwarding places client data on the gateway datapath rather than a local bridged VLAN

D:

This is relevant to Co-channel contention, where co-channel APs share contention airtime even if their signals are individually strong In the Lakeside Classroom case, That test could pass while the actual user-facing requirement still fails. The specific mechanism is tunnel forwarding places client data on the gateway datapath rather than a local bridged VLAN

Question 163

At West Clinic, a legacy scanner wing uses overlapping 2.4-GHz channels and fluctuating latency. What measured or witnessed result should be required before signoff?

  1. Verify pre-auth restrictions then post-auth Internet-only reachability.
  2. Show lower interference and reliable printer/scanner data on the chosen legal plan.
  3. Measure acceptable coverage plus SNR at walking and seated client locations.
  4. Fail one member under a staged load and confirm expected client access.

Explanation

Correct Answer

B:

For West Clinic, the decisive mechanism is 2.4 GHz channel plan. Only a small number of 2.4-GHz 20-MHz channels can avoid substantial overlap. Show lower interference and reliable printer/scanner data on the chosen legal plan supplies measurable, case-relevant evidence that the intended behavior actually occurs.

Incorrect Answers

A:

This is relevant to Guest portal and role, where captive portal authentication and post-login role enforcement are separate controls In the West Clinic case, That test could pass while the actual user-facing requirement still fails. The specific mechanism is only a small number of 2.4-GHz 20-MHz channels can avoid substantial overlap

C:

This is relevant to AP power and cell geometry, where aP placement and transmit power affect cell coverage and roaming boundaries In the West Clinic case, That test could pass while the actual user-facing requirement still fails. The specific mechanism is only a small number of 2.4-GHz 20-MHz channels can avoid substantial overlap

D:

This is relevant to Gateway cluster resiliency, where tunneled service resilience requires usable gateway capacity and working AP tunnels In the West Clinic case, That test could pass while the actual user-facing requirement still fails. The specific mechanism is only a small number of 2.4-GHz 20-MHz channels can avoid substantial overlap

Question 164

At Riverside Building, a quarantine decision changes in ClearPass but the existing wired session retains old access. Which test best differentiates real success from a merely healthy status light?

  1. Verify a test contractor receives the correct restricted VLAN and no employee services.
  2. Verify permitted NOC commands work and prohibited configuration commands fail.
  3. Trigger a lab policy change and confirm the same authenticated client changes roles.
  4. Maintain authenticated sessions through the expected timer cycle in a controlled test.

Explanation

Correct Answer

C:

For Riverside Building, the decisive mechanism is RADIUS change of authorization. Change of Authorization can change an active network access session's policy state. Trigger a lab policy change and confirm the same authenticated client changes roles supplies measurable, case-relevant evidence that the intended behavior actually occurs.

Incorrect Answers

A:

This is relevant to Dynamic VLAN on wired port, where dynamic VLAN assignment requires compatible RADIUS results and local switch VLAN support In the Riverside Building case, That test could pass while the actual user-facing requirement still fails. The specific mechanism is change of Authorization can change an active network access session's policy state

B:

This is relevant to TACACS+ admin AAA distinction, where administrative command authorization and client-port 802.1X solve different AAA problems In the Riverside Building case, That test could pass while the actual user-facing requirement still fails. The specific mechanism is change of Authorization can change an active network access session's policy state

D:

This is relevant to Supplicant reauthentication intervals, where wired reauthentication intervals can affect session continuity if handshake timing is inadequate In the Riverside Building case, That test could pass while the actual user-facing requirement still fails. The specific mechanism is change of Authorization can change an active network access session's policy state

Question 165

At Bayside Campus, a meeting center runs a wide channel plan that causes heavy overlapping radio contention. Which check provides the most useful information for fixing this deployment?

  1. Examine associated bands steering outcomes and per-band utilization.
  2. Examine input DSCP markings trust state and egress queue classification.
  3. Examine RF airtime busy retries co-channel neighbors and client PHY rates.
  4. Examine group subscriptions multicast airtime and converted frame counts.

Explanation

Correct Answer

C:

For Bayside Campus, the decisive mechanism is RF channel width optimization. Narrower channels can improve dense-channel reuse despite reducing peak link rate. Inspect RF airtime busy retries co-channel neighbors and client PHY rates is the most direct way to isolate this particular failure before making a change.

Incorrect Answers

A:

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 Bayside Campus case, Those observations could be normal while the stated fault persists. The specific mechanism is narrower channels can improve dense-channel reuse despite reducing peak link rate

B:

This is relevant to DSCP trust boundary, where qoS trust boundaries determine which received packet markings affect forwarding priority In the Bayside Campus case, Those observations could be normal while the stated fault persists. The specific mechanism is narrower channels can improve dense-channel reuse despite reducing peak link rate

D:

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 Bayside Campus case, Those observations could be normal while the stated fault persists. The specific mechanism is narrower channels can improve dense-channel reuse despite reducing peak link rate

Question 166

At Learning Commons, a new downstream switch advertises a superior root and changes STP path selection unexpectedly. Which preventive control is most relevant to this scenario over time?

  1. Retain spare supported optics and baseline error counters before maintenance.
  2. Retain rollback access during global STP region or root changes.
  3. Avoid bypassing AAA simply because DHCP is failing.
  4. Do not broaden all enforcement results when one service policy is wrong.

Explanation

Correct Answer

B:

For Learning Commons, the decisive mechanism is STP convergence fault. STP role and root election determine the alternate Layer 2 forwarding path. Retain rollback access during global STP region or root changes is an enduring limitation on the operational risk, not simply a one-time passing test.

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 Learning Commons case, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is sTP role and root election determine the alternate Layer 2 forwarding path

C:

This is relevant to DHCP address-acquisition failure, where network authorization and DHCP allocation are separate stages requiring their own diagnostics In the Learning Commons case, A precaution for another failure mode is not the enduring boundary needed here. 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 Learning Commons case, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is sTP role and root election determine the alternate Layer 2 forwarding path

Question 167

At Lakeside Classroom, a new WLAN attempts to force all devices to 5 GHz and disconnects legacy scanners. Which test best differentiates real success from a merely healthy status light?

  1. Generate concurrent voice and bulk traffic and compare latency under load.
  2. Demonstrate authorized voice gets its intended queue while bulk traffic does not.
  3. Stress uplink and confirm voice stays timely without starvation of other classes.
  4. Observe suitable dual-band clients prefer 5 GHz without breaking legacy endpoints.

Explanation

Correct Answer

D:

For Lakeside Classroom, the decisive mechanism is Band steering under load. Band steering can guide dual-band association but depends on real RF and client support. Observe suitable dual-band clients prefer 5 GHz without breaking legacy endpoints supplies measurable, case-relevant evidence that the intended behavior actually occurs.

Incorrect Answers

A:

This is relevant to WMM access categories, where 802.11e WMM prioritizes wireless contention via different access categories In the Lakeside Classroom case, That test could pass while the actual user-facing requirement still fails. The specific mechanism is band steering can guide dual-band association but depends on real RF and client support

B:

This is relevant to DSCP trust boundary, where qoS trust boundaries determine which received packet markings affect forwarding priority In the Lakeside Classroom case, That test could pass while the actual user-facing requirement still fails. The specific mechanism is band steering can guide dual-band association but depends on real RF and client support

C:

This is relevant to Strict priority queue use, where priority scheduling affects service latency but requires careful queue sizing In the Lakeside Classroom case, That test could pass while the actual user-facing requirement still fails. The specific mechanism is band steering can guide dual-band association but depends on real RF and client support

Question 168

At Engineering Tower, a role definition changed centrally yet one switch retains an outdated local enforcement policy. Which TWO responses together provide a direct implementation and a continuing safeguard for the stated risk? Select TWO answers.

  1. Enforce role or group-based segmentation at the supported switching/gateway point.
  2. Publish supported downloadable role definitions and validate switch role retrieval.
  3. Secure log integrity retention and access according to data policy.
  4. Version role changes and retain a safe fallback if role retrieval fails.

Explanation

Correct Answers

B:

This is the implementation element for the Engineering Tower case: Downloadable roles coordinate centrally defined access controls with capable switch enforcement. The specific action Publish supported downloadable role definitions and validate switch role retrieval addresses the stated fault; the question also requires a persistent risk control.

D:

This is the continuing risk-control element for Engineering Tower. Version role changes and retain a safe fallback if role retrieval fails prevents a future regression or unauthorized relaxation of the repair; it complements, rather than replaces, the implementation.

Incorrect Answers

A:

This may be a configuration step for Campus microsegmentation: Role-based segmentation can limit lateral flows beyond simple VLAN separation. It does not resolve the Downloadable user roles requirement in Engineering Tower and is not one of the two controls requested. The direct mechanism here is downloadable roles coordinate centrally defined access controls with capable switch enforcement

C:

This may be an ongoing precaution for RADIUS accounting traceability: Authentication and accounting provide different information and require separate configuration. It does not resolve the Downloadable user roles requirement in Engineering Tower and is not one of the two controls requested. The direct mechanism here is downloadable roles coordinate centrally defined access controls with capable switch enforcement

Question 169

At Main Data Center, two aggregation switches report OSPF Init and Down cycles after one interface timer change. Which ongoing safeguard best limits the specific risk after rollout?

  1. Check return-path symmetry and middlebox state before broad ECMP changes.
  2. Avoid aggressive timers without observing CPU and path loss conditions.
  3. Audit IPv4/IPv6 protocol operation separately rather than assuming dual-stack parity.
  4. Test preemption and split-brain behavior during a controlled pilot.

Explanation

Correct Answer

B:

For Main Data Center, the decisive mechanism is OSPF hello and dead timers. OSPF timer mismatches can prevent reliable adjacency even when IP connectivity exists. Avoid aggressive timers without observing CPU and path loss conditions is an enduring limitation on the operational risk, not simply a one-time passing test.

Incorrect Answers

A:

This is relevant to ECMP next-hop selection, where eCMP typically spreads flows over equal-cost next hops, not necessarily one flow packet by packet In the Main Data Center case, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is oSPF timer mismatches can prevent reliable adjacency even when IP connectivity exists

C:

This is relevant to IPv6 OSPFv3 adjacency, where oSPFv3 exchanges IPv6 routing information through a separately configured protocol process In the Main Data Center case, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is oSPF timer mismatches can prevent reliable adjacency even when IP connectivity exists

D:

This is relevant to First-hop gateway election, where VRRP abstracts the default gateway across eligible routing devices In the Main Data Center case, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is oSPF timer mismatches can prevent reliable adjacency even when IP connectivity exists

Question 170

At Lakeside Classroom, a print-server connection runs at 100 Mb/s though both devices support 1 Gb/s and auto-negotiation was disabled at one end. What should be examined to confirm the actual failure mechanism?

  1. Examine per-port tag membership and tagged packet captures at the failing VLAN boundary.
  2. Cross-check operational speed duplex FCS errors and auto-negotiation on each side of the link.
  3. Examine EAPOL start identity exchange RADIUS decision and authenticated port status.
  4. Examine management frames for authentication association rejection status and security mismatch.

Explanation

Correct Answer

B:

For Lakeside Classroom, the decisive mechanism is Ethernet negotiation and duplex. 802.3 physical link negotiation precedes Layer 2 and Layer 3 service validation. Compare operational speed duplex FCS errors and auto-negotiation on each side of the link is the most direct way to isolate this particular failure before making a change.

Incorrect Answers

A:

This is relevant to 802.1Q VLAN tagging, where 802.1Q tagging preserves logical broadcast-domain identity over shared Ethernet links In the Lakeside Classroom case, Those observations could be normal while the stated fault persists. The specific mechanism is 802.3 physical link negotiation precedes Layer 2 and Layer 3 service validation

C:

This is relevant to 802.1X EAPOL versus IP service, where 802.1X is port-based access control; IP configuration occurs after network admission In the Lakeside Classroom case, Those observations could be normal while the stated fault persists. The specific mechanism is 802.3 physical link negotiation precedes Layer 2 and Layer 3 service validation

D:

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