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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 12

Question 110

At Learning Commons, a third-party tenant switch advertises a superior STP root on a downstream handoff. Which diagnostic comparison would distinguish this fault from nearby mechanisms?

  1. Inspect root-inconsistent state and received superior BPDUs.
  2. Inspect neighbor LLDP-MED TLVs and phone versus PC VLAN tags.
  3. Inspect hit counters rule ordering and packet direction for a controlled flow.
  4. Inspect frame-size drop counters PMTU behavior and VLAN/tunnel overhead.

Explanation

Correct Answer

A:

For Learning Commons, the decisive mechanism is Root guard downstream. Root guard prevents a protected port from accepting a superior root advertisement. Inspect root-inconsistent state and received superior BPDUs is the most direct way to isolate this particular failure before making a change.

Incorrect Answers

B:

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 Learning Commons case, Those observations could be normal while the stated fault persists. The specific mechanism is root guard prevents a protected port from accepting a superior root advertisement

C:

This is relevant to ACL direction and interface, where stateless ACL effectiveness depends on interface attachment direction and rule order In the Learning Commons case, Those observations could be normal while the stated fault persists. The specific mechanism is root guard prevents a protected port from accepting a superior root advertisement

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 Learning Commons case, Those observations could be normal while the stated fault persists. The specific mechanism is root guard prevents a protected port from accepting a superior root advertisement

Question 111

At Convention Center, a warehouse AP behind metal shelving creates signal shadowing at scanner height. What targeted evidence should the network engineer collect first?

  1. Examine client WMM capability TID mapping and AP access-category statistics.
  2. Examine input DSCP markings trust state and egress queue classification.
  3. Examine spatial RSSI/SNR maps antenna patterns and local obstructions.
  4. Examine group subscriptions multicast airtime and converted frame counts.

Explanation

Correct Answer

C:

For Convention Center, the decisive mechanism is Antenna orientation and placement. Antenna radiation pattern and placement govern usable RF cell shape. Inspect spatial RSSI/SNR maps antenna patterns and local obstructions is the most direct way to isolate this particular failure before making a change.

Incorrect Answers

A:

This is relevant to WMM access categories, where 802.11e WMM prioritizes wireless contention via different access categories In the Convention Center case, Those observations could be normal while the stated fault persists. The specific mechanism is antenna radiation pattern and placement govern usable RF cell shape

B:

This is relevant to DSCP trust boundary, where qoS trust boundaries determine which received packet markings affect forwarding priority In the Convention Center case, Those observations could be normal while the stated fault persists. The specific mechanism is antenna radiation pattern and placement govern usable RF cell shape

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 Convention Center case, Those observations could be normal while the stated fault persists. The specific mechanism is antenna radiation pattern and placement govern usable RF cell shape

Question 112

At Administration Block, two AOS-CX switches connect physically but never form OSPF adjacency because area IDs differ. Which practical change is best suited to this topology and its constraints?

  1. Use supported ECMP and account for session hash distribution across eligible paths.
  2. Configure supported VRRP with consistent virtual IP and safe priority/failover behavior.
  3. Align OSPF area ID and supported area type at both neighboring interfaces.
  4. Enable matching OSPFv3 area/interface settings with valid IPv6 transport reachability.

Explanation

Correct Answer

C:

For Administration Block, the decisive mechanism is OSPF area membership. OSPF neighbors on a link must agree on essential area and protocol parameters. Align OSPF area ID and supported area type at both neighboring interfaces establishes the needed configuration in the case rather than merely measuring a symptom.

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 Administration Block case, Changing that neighboring feature does not implement the missing function. The specific mechanism is oSPF neighbors on a link must agree on essential area and protocol parameters

B:

This is relevant to First-hop gateway election, where VRRP abstracts the default gateway across eligible routing devices In the Administration Block case, Changing that neighboring feature does not implement the missing function. The specific mechanism is oSPF neighbors on a link must agree on essential area and protocol parameters

D:

This is relevant to IPv6 OSPFv3 adjacency, where oSPFv3 exchanges IPv6 routing information through a separately configured protocol process In the Administration Block case, Changing that neighboring feature does not implement the missing function. The specific mechanism is oSPF neighbors on a link must agree on essential area and protocol parameters

Question 113

At Central Hall, a laptop passes 802.1X but receives a 169.254 address instead of the expected VLAN lease. Which AOS-CX or Aruba networking design choice resolves this specific dependency?

  1. Correct STP root priorities and protect edge or downstream boundaries as appropriate.
  2. Correct SSID-to-VLAN and switch trunk membership for the intended segment.
  3. Trace the forward and reverse forwarding path including route recursion and ACLs.
  4. Trace VLAN classification DHCP relay/server route and lease scope in sequence.

Explanation

Correct Answer

D:

For Central Hall, the decisive mechanism is DHCP address-acquisition failure. Network authorization and DHCP allocation are separate stages requiring their own diagnostics. Trace VLAN classification DHCP relay/server route and lease scope in sequence establishes the needed configuration in the case rather than merely measuring a symptom.

Incorrect Answers

A:

This is relevant to STP convergence fault, where sTP role and root election determine the alternate Layer 2 forwarding path In the Central Hall case, Changing that neighboring feature does not implement the missing function. The specific mechanism is network authorization and DHCP allocation are separate stages requiring their own diagnostics

B:

This is relevant to Wrong VLAN mapping, where wLAN-to-wired mapping errors can appear as a DHCP or authorization defect In the Central Hall case, Changing that neighboring feature does not implement the missing function. The specific mechanism is network authorization and DHCP allocation are separate stages requiring their own diagnostics

C:

This is relevant to Routed blackhole, where route presence alone does not prove usable bidirectional forwarding In the Central Hall case, Changing that neighboring feature does not implement the missing function. The specific mechanism is network authorization and DHCP allocation are separate stages requiring their own diagnostics

Question 114

At Learning Commons, a newly created IoT VLAN 370 lacks a Layer 3 gateway on the access distribution switch. Which observation most directly isolates the likely cause before any change?

  1. Inspect SVI up state VLAN membership ARP and routing table for the gateway subnet.
  2. Trace where client frames exit the AP versus enter the Aruba gateway datapath.
  3. Inspect AP boot sequence neighbor LLDP uplink VLAN and address acquisition.
  4. Inspect serial record device assignment onboarding logs DNS and outbound management connectivity.

Explanation

Correct Answer

A:

For Learning Commons, the decisive mechanism is SVI gateway provisioning. An SVI connects a VLAN broadcast domain to Layer 3 routing on a capable switch. Inspect SVI up state VLAN membership ARP and routing table for the gateway subnet is the most direct way to isolate this particular failure before making a change.

Incorrect Answers

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 Learning Commons case, Those observations could be normal while the stated fault persists. The specific mechanism is an SVI connects a VLAN broadcast domain to Layer 3 routing on a capable switch

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 Learning Commons case, Those observations could be normal while the stated fault persists. The specific mechanism is an SVI connects a VLAN broadcast domain to Layer 3 routing on a capable switch

D:

This is relevant to Central device onboarding, where cloud inventory association and device management connectivity are separate onboarding requirements In the Learning Commons case, Those observations could be normal while the stated fault persists. The specific mechanism is an SVI connects a VLAN broadcast domain to Layer 3 routing on a capable switch

Question 115

At Convention Center, a remote branch SSID bridges into an access VLAN that lacks the intended local policy. Which implementation directly addresses this campus fault without replacing the wrong component?

  1. Investigate noise/interference and target adequate SNR rather than raising AP power blindly.
  2. Apply an RF plan with reasonable channel reuse and channel width for expected density.
  3. Establish the correct AOS 10 bridge-mode VLAN mapping and deploy enforcement at the chosen edge.
  4. Perform an active site survey covering attenuation interference and realistic client density.

Explanation

Correct Answer

C:

For Convention Center, the decisive mechanism is AOS 10 bridge forwarding. Bridge-mode SSID traffic exits at the local AP wired uplink rather than a tunnel gateway. Set the correct AOS 10 bridge-mode VLAN mapping and deploy enforcement at the chosen edge establishes the needed configuration in the case rather than merely measuring a symptom.

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 Convention Center case, Changing that neighboring feature does not implement the missing function. The specific mechanism is bridge-mode SSID traffic exits at the local AP wired uplink rather than a tunnel gateway

B:

This is relevant to Co-channel contention, where co-channel APs share contention airtime even if their signals are individually strong In the Convention Center case, Changing that neighboring feature does not implement the missing function. The specific mechanism is bridge-mode SSID traffic exits at the local AP wired uplink rather than a tunnel gateway

D:

This is relevant to RF predictive versus active survey, where predictive RF planning does not replace measured real-world attenuation and utilization In the Convention Center case, Changing that neighboring feature does not implement the missing function. The specific mechanism is bridge-mode SSID traffic exits at the local AP wired uplink rather than a tunnel gateway

Question 116

At East Student Center, an auditorium uses 80-MHz channels with few available reuse options and low aggregate capacity. Which investigation most directly explains why the intended service is not working?

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

Explanation

Correct Answer

B:

For East Student Center, 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 Multicast-to-unicast tradeoff, where multicast-to-unicast can improve delivery to small receiver groups but adds per-recipient work In the East Student Center 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

C:

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 East Student Center 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 DSCP trust boundary, where qoS trust boundaries determine which received packet markings affect forwarding priority In the East Student Center 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 117

At Engineering Tower, an office user cross-patches two wall ports and triggers a broadcast storm. Which TWO responses together provide a direct implementation and a continuing safeguard for the stated risk? Select TWO answers.

  1. Retain keepalive routing isolated from routine campus policy edits.
  2. Activate supported loop protection on suitable edge ports and keep STP defenses active.
  3. Build a supported VSX ISL with enough capacity and verify peer state consistency.
  4. Avoid disabling spanning-tree campus-wide to suppress log messages.

Explanation

Correct Answers

B:

This is the implementation element for the Engineering Tower case: Loop detection complements STP by containing accidental edge loops. The specific action Enable supported loop protection on suitable edge ports and keep STP defenses active addresses the stated fault; the question also requires a persistent risk control.

D:

This is the continuing risk-control element for Engineering Tower. Avoid disabling spanning-tree campus-wide to suppress log messages prevents a future regression or unauthorized relaxation of the repair; it complements, rather than replaces, the implementation.

Incorrect Answers

A:

This may be an ongoing precaution for VSX keepalive separation: The VSX keepalive helps distinguish peer failure from ISL failure. It does not resolve the Loop protection requirement in Engineering Tower and is not one of the two controls requested. The direct mechanism here is loop detection complements STP by containing accidental edge loops

C:

This may be a configuration step for VSX inter-switch link: VSX peers synchronize selected state over an ISL while retaining independent control planes. It does not resolve the Loop protection requirement in Engineering Tower and is not one of the two controls requested. The direct mechanism here is loop detection complements STP by containing accidental edge loops

Question 118

At North Residence, clients lose IPv4 connectivity when dynamic ARP inspection is enabled without expected bindings. Which observation most directly isolates the likely cause before any change?

  1. Inspect ARP drops source MAC/IP and snooping binding entries.
  2. Inspect neighbor LLDP-MED TLVs and phone versus PC VLAN tags.
  3. Inspect interface VLAN mode learned MAC address and DHCP lease subnet.
  4. Compare allowed VLAN list tagging and egress counters at both ends.

Explanation

Correct Answer

A:

For North Residence, the decisive mechanism is ARP inspection dependency. Dynamic ARP inspection relies on credible address-to-MAC bindings to reject spoofing. Inspect ARP drops source MAC/IP and snooping binding entries is the most direct way to isolate this particular failure before making a change.

Incorrect Answers

B:

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 North Residence case, Those observations could be normal while the stated fault persists. The specific mechanism is dynamic ARP inspection relies on credible address-to-MAC bindings to reject spoofing

C:

This is relevant to Access VLAN classification, where an access port carries untagged frames in one configured access VLAN In the North Residence case, Those observations could be normal while the stated fault persists. The specific mechanism is dynamic ARP inspection relies on credible address-to-MAC bindings to reject spoofing

D:

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 North Residence case, Those observations could be normal while the stated fault persists. The specific mechanism is dynamic ARP inspection relies on credible address-to-MAC bindings to reject spoofing

Question 119

At West Clinic, a newly racked campus switch has Internet access but never appears in the intended Aruba Central site. Which controlled configuration is most likely to restore the required service?

  1. Choose approved bridge or tunneled forwarding mode and correctly map AP VLAN or gateway cluster.
  2. Set the AP switchport VLAN tagging PoE and DHCP reachability according to the deployment mode.
  3. Verify subscription device identity Central assignment and management reachability in the authorized tenant.
  4. Configure compatible LACP membership and logical LAG settings across the supported endpoints.

Explanation

Correct Answer

C:

For West Clinic, the decisive mechanism is Central device onboarding. Cloud inventory association and device management connectivity are separate onboarding requirements. Verify subscription device identity Central assignment and management reachability in the authorized tenant establishes the needed configuration in the case rather than merely measuring a symptom.

Incorrect Answers

A:

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 West Clinic case, Changing that neighboring feature does not implement the missing function. The specific mechanism is cloud inventory association and device management connectivity are separate onboarding requirements

B:

This is relevant to AP uplink physical mapping, where aP service onboarding depends on both physical power and the upstream management network In the West Clinic case, Changing that neighboring feature does not implement the missing function. The specific mechanism is cloud inventory association and device management connectivity are separate onboarding requirements

D:

This is relevant to LACP uplink provisioning, where lACP forms one logical bundle only when peers agree on aggregation parameters In the West Clinic case, Changing that neighboring feature does not implement the missing function. The specific mechanism is cloud inventory association and device management connectivity are separate onboarding requirements

Question 120

At Athletics Complex, a user role updates correctly but accounting stop events are absent from the collector. What should be examined to confirm the actual failure mechanism?

  1. Examine TLS handshake certificate issuer expiry and ClearPass authentication log.
  2. Examine start interim and stop records mapped to the NAD and user.
  3. Examine association RSN capability and failed security negotiation status.
  4. Examine client TLS validation errors certificate SAN and trusted issuer store.

Explanation

Correct Answer

B:

For Athletics Complex, the decisive mechanism is RADIUS accounting traceability. Authentication and accounting provide different information and require separate configuration. Inspect start interim and stop records mapped to the NAD and user is the most direct way to isolate this particular failure before making a change.

Incorrect Answers

A:

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 Athletics Complex case, Those observations could be normal while the stated fault persists. The specific mechanism is authentication and accounting provide different information and require separate configuration

C:

This is relevant to WPA3 Enterprise compatibility, where wPA3-Enterprise builds on supported enterprise security capabilities with stronger protections In the Athletics Complex case, Those observations could be normal while the stated fault persists. The specific mechanism is authentication and accounting provide different information and require separate configuration

D:

This is relevant to EAP-TLS RADIUS server certificate, where mutual TLS requires client-side confidence in the EAP server identity In the Athletics Complex case, Those observations could be normal while the stated fault persists. The specific mechanism is authentication and accounting provide different information and require separate configuration