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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 91

Question 900

At Arts Pavilion, a ClearPass policy returns a VLAN absent on the actual access switch. Which AOS-CX or Aruba networking design choice resolves this specific dependency?

  1. Apply approved MAC authentication with profiling and strictly limited authorization.
  2. Map the returned VLAN attributes to an existing permitted switch VLAN and routed scope.
  3. Return supported VLAN or role attributes that match network enforcement configuration.
  4. Set up appropriate RADIUS failover and tested timeout/retry settings.

Explanation

Correct Answer

B:

For Arts Pavilion, the decisive mechanism is Dynamic VLAN on wired port. Dynamic VLAN assignment requires compatible RADIUS results and local switch VLAN support. Map the returned VLAN attributes to an existing permitted switch VLAN and routed scope establishes the needed configuration in the case rather than merely measuring a symptom.

Incorrect Answers

A:

This is relevant to MAB for headless IoT, where mAB is a weaker fallback identity mechanism than certificate-based 802.1X In the Arts Pavilion case, Changing that neighboring feature does not implement the missing function. The specific mechanism is dynamic VLAN assignment requires compatible RADIUS results and local switch VLAN support

C:

This is relevant to ClearPass enforcement attributes, where an Access-Accept alone does not guarantee the intended authorization role was applied In the Arts Pavilion case, Changing that neighboring feature does not implement the missing function. The specific mechanism is dynamic VLAN assignment requires compatible RADIUS results and local switch VLAN support

D:

This is relevant to RADIUS authorization timeout, where authentication server reachability and retry order influence network-admission decisions In the Arts Pavilion case, Changing that neighboring feature does not implement the missing function. The specific mechanism is dynamic VLAN assignment requires compatible RADIUS results and local switch VLAN support

Question 901

At Engineering Tower, an access switch becomes STP root after a firmware replacement and traffic takes a long path. Which TWO responses together provide a direct implementation and a continuing safeguard for the stated risk? Select TWO answers.

  1. Set the appropriate spanning-tree priority to retain an intentional distribution root.
  2. Keep keepalive routing isolated from routine campus policy edits.
  3. Guard root-sensitive ports against superior BPDUs from downstream devices.
  4. Build a supported VSX ISL with enough capacity and verify peer state consistency.

Explanation

Correct Answers

A:

This is the implementation element for the Engineering Tower case: RSTP uses a root bridge and port roles to build a loop-free Layer 2 topology. The specific action Set the appropriate spanning-tree priority to retain an intentional distribution root addresses the stated fault; the question also requires a persistent risk control.

C:

This is the continuing risk-control element for Engineering Tower. Guard root-sensitive ports against superior BPDUs from downstream devices prevents a future regression or unauthorized relaxation of the repair; it complements, rather than replaces, the implementation.

Incorrect Answers

B:

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 RSTP root placement requirement in Engineering Tower and is not one of the two controls requested. The direct mechanism here is rSTP uses a root bridge and port roles to build a loop-free Layer 2 topology

D:

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 RSTP root placement requirement in Engineering Tower and is not one of the two controls requested. The direct mechanism here is rSTP uses a root bridge and port roles to build a loop-free Layer 2 topology

Question 902

At Medical Annex, a camera on a newly patched switchport obtains an office-user address from the wrong VLAN. What safety boundary prevents the same campus failure in future deployments?

  1. Guard against arbitrary untrusted client VLAN tagging on shared ports.
  2. Do not enable jumbo frames on one device without validating intermediate hops.
  3. Stage ACL changes with console rollback to avoid management lockout.
  4. Deny unapproved client VLAN changes and review port moves before deployment.

Explanation

Correct Answer

D:

For Medical Annex, the decisive mechanism is Access VLAN classification. An access port carries untagged frames in one configured access VLAN. Deny unapproved client VLAN changes and review port moves before deployment is an enduring limitation on the operational risk, not simply a one-time passing test.

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 Medical Annex case, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is an access port carries untagged frames in one configured access VLAN

B:

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 Medical Annex case, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is an access port carries untagged frames in one configured access VLAN

C:

This is relevant to ACL direction and interface, where stateless ACL effectiveness depends on interface attachment direction and rule order In the Medical Annex case, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is an access port carries untagged frames in one configured access VLAN

Question 903

At South Science Wing, staff identity authentication fails but the switchport remains unrestricted after retry exhaustion. Which ongoing safeguard best limits the specific risk after rollout?

  1. Audit fallback policy to avoid conflating rejected credentials with unavailable servers.
  2. Avoid shrinking timers purely for perceived security without measuring disruption.
  3. Do not broadly fail-open protected ports on temporary RADIUS loss.
  4. Maintain intentional restricted access for unmanaged endpoint classes.

Explanation

Correct Answer

A:

For South Science Wing, the decisive mechanism is Unauthorized fail-open behavior. Authentication rejection is not the same as RADIUS server unavailability. Audit fallback policy to avoid conflating rejected credentials with unavailable servers is an enduring limitation on the operational risk, not simply a one-time passing test.

Incorrect Answers

B:

This is relevant to Supplicant reauthentication intervals, where wired reauthentication intervals can affect session continuity if handshake timing is inadequate In the South Science Wing case, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is authentication rejection is not the same as RADIUS server unavailability

C:

This is relevant to RADIUS authorization timeout, where authentication server reachability and retry order influence network-admission decisions In the South Science Wing case, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is authentication rejection is not the same as RADIUS server unavailability

D:

This is relevant to Wired 802.1X port access, where 802.1X authorizes port traffic through EAPOL and the authentication server decision In the South Science Wing case, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is authentication rejection is not the same as RADIUS server unavailability

Question 904

At South Science Wing, a new AP was patched to an access port without its management VLAN. What should the engineer implement first to correct the stated condition?

  1. Add an authorized management-VRF route and correct source reachability for the target service.
  2. Verify subscription device identity Central assignment and management reachability in the authorized tenant.
  3. Set the AP switchport VLAN tagging PoE and DHCP reachability according to the deployment mode.
  4. Bind the device to its approved group and review group-level settings and local overrides.

Explanation

Correct Answer

C:

For South Science Wing, the decisive mechanism is AP uplink physical mapping. AP service onboarding depends on both physical power and the upstream management network. Set the AP switchport VLAN tagging PoE and DHCP reachability according to the deployment mode establishes the needed configuration in the case rather than merely measuring a symptom.

Incorrect Answers

A:

This is relevant to Management VRF reachability, where aOS-CX management VRF and default forwarding VRF may have separate reachability In the South Science Wing case, Changing that neighboring feature does not implement the missing function. The specific mechanism is aP service onboarding depends on both physical power and the upstream management network

B:

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

D:

This is relevant to Central group assignment, where central groups govern configuration inheritance while sites mainly aid location and operations In the South Science Wing case, Changing that neighboring feature does not implement the missing function. The specific mechanism is aP service onboarding depends on both physical power and the upstream management network

Question 905

At North Residence, clients lose IPv4 connectivity when dynamic ARP inspection is enabled without expected bindings. What should the engineer implement first to correct the stated condition?

  1. Align ARP validation with trustworthy bindings or approved static exceptions for static hosts.
  2. Set the switchport as an access member of the correct VLAN with matching policy.
  3. Advertise approved LLDP-MED voice VLAN and separate PC data access classification.
  4. Permit required tagged VLANs on both trunk interfaces while restricting unnecessary VLANs.

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. Align ARP validation with trustworthy bindings or approved static exceptions for static hosts establishes the needed configuration in the case rather than merely measuring a symptom.

Incorrect Answers

B:

This is relevant to Access VLAN classification, where an access port carries untagged frames in one configured access VLAN In the North Residence case, Changing that neighboring feature does not implement the missing function. The specific mechanism is dynamic ARP inspection relies on credible address-to-MAC bindings to reject spoofing

C:

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, Changing that neighboring feature does not implement the missing function. 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, Changing that neighboring feature does not implement the missing function. The specific mechanism is dynamic ARP inspection relies on credible address-to-MAC bindings to reject spoofing

Question 906

At Lakeside Classroom, a new WLAN attempts to force all devices to 5 GHz and disconnects legacy scanners. What targeted evidence should the network engineer collect first?

  1. Examine input DSCP markings trust state and egress queue classification.
  2. Examine associated bands steering outcomes and per-band utilization.
  3. Examine queue mappings weights and actual dropped/served traffic.
  4. Examine client WMM capability TID mapping and AP access-category statistics.

Explanation

Correct Answer

B:

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. Inspect associated bands steering outcomes and per-band utilization is the most direct way to isolate this particular failure before making a change.

Incorrect Answers

A:

This is relevant to DSCP trust boundary, where qoS trust boundaries determine which received packet markings affect forwarding priority In the Lakeside Classroom case, Those observations could be normal while the stated fault persists. 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, Those observations could be normal while the stated fault persists. The specific mechanism is band steering can guide dual-band association but depends on real RF and client support

D:

This is relevant to WMM access categories, where 802.11e WMM prioritizes wireless contention via different access categories In the Lakeside Classroom case, Those observations could be normal while the stated fault persists. The specific mechanism is band steering can guide dual-band association but depends on real RF and client support

Question 907

At Administration Block, wireless monitoring detects an unauthorized AP mimicking the corporate SSID. What safety boundary prevents the same campus failure in future deployments?

  1. Protect CA trust and plan certificate renewal before deployment deadlines.
  2. Restrict disruptive RF containment to approved operations and applicable laws.
  3. Audit implicit permits and policy defaults after group membership changes.
  4. Never direct users to blindly accept arbitrary authentication server certificates.

Explanation

Correct Answer

B:

For Administration Block, the decisive mechanism is Rogue AP response. Rogue identification differs from automatically assuming all same-name neighbor APs are malicious. Restrict disruptive RF containment to approved operations and applicable laws is an enduring limitation on the operational risk, not simply a one-time passing test.

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 Administration Block case, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is rogue identification differs from automatically assuming all same-name neighbor APs are malicious

C:

This is relevant to Campus microsegmentation, where role-based segmentation can limit lateral flows beyond simple VLAN separation In the Administration Block case, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is rogue identification differs from automatically assuming all same-name neighbor APs are malicious

D:

This is relevant to EAP-TLS RADIUS server certificate, where mutual TLS requires client-side confidence in the EAP server identity In the Administration Block case, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is rogue identification differs from automatically assuming all same-name neighbor APs are malicious

Question 908

At West Auditorium, traffic uses the slow uplink because OSPF cost is unexpectedly lower there. Which investigation most directly explains why the intended service is not working?

  1. Inspect route table recursive next-hop resolution and ARP reachability.
  2. Inspect SPF result per-interface cost and best-route selection.
  3. Inspect VRRP advertisements gateway owner and virtual MAC state.
  4. Inspect IPv6 link-local neighbors OSPFv3 interface area and router ID.

Explanation

Correct Answer

B:

For West Auditorium, the decisive mechanism is OSPF metric selection. OSPF chooses shortest paths based on cumulative advertised link cost. Inspect SPF result per-interface cost and best-route selection is the most direct way to isolate this particular failure before making a change.

Incorrect Answers

A:

This is relevant to Static route next hop, where a static route only forwards as intended when its next hop can be resolved In the West Auditorium case, Those observations could be normal while the stated fault persists. The specific mechanism is oSPF chooses shortest paths based on cumulative advertised link cost

C:

This is relevant to First-hop gateway election, where VRRP abstracts the default gateway across eligible routing devices In the West Auditorium case, Those observations could be normal while the stated fault persists. The specific mechanism is oSPF chooses shortest paths based on cumulative advertised link cost

D:

This is relevant to IPv6 OSPFv3 adjacency, where oSPFv3 exchanges IPv6 routing information through a separately configured protocol process In the West Auditorium case, Those observations could be normal while the stated fault persists. The specific mechanism is oSPF chooses shortest paths based on cumulative advertised link cost

Question 909

At East Student Center, large multicast video streams consume excess broadcast airtime on classroom radios. What operational rule should remain in place for later changes?

  1. Track both RF signal and noise as part of acceptance tests.
  2. Assess receiver scale and application semantics before changing multicast treatment.
  3. Avoid excessive AP transmit power that creates broad overlapping cells.
  4. Repeat surveys after major layout or material changes rather than trusting only plans.

Explanation

Correct Answer

B:

For East Student Center, the decisive mechanism is Multicast optimization WLAN. Wireless multicast often uses conservative rates and can impair shared medium efficiency. Assess receiver scale and application semantics before changing multicast treatment is an enduring limitation on the operational risk, not simply a one-time passing test.

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 East Student Center case, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is wireless multicast often uses conservative rates and can impair shared medium efficiency

C:

This is relevant to Co-channel contention, where co-channel APs share contention airtime even if their signals are individually strong In the East Student Center case, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is wireless multicast often uses conservative rates and can impair shared medium efficiency

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 East Student Center case, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is wireless multicast often uses conservative rates and can impair shared medium efficiency

Question 910

At East Student Center, a downstream access switch has one LAG member to each VSX chassis but the bundle never forms. What recurring protection should accompany this configuration?

  1. Test preemption and split-brain protection before changing gateway priority.
  2. Stage MC-LAG moves to avoid temporary duplicate standalone loops.
  3. Avoid disabling spanning-tree campus-wide to suppress log messages.
  4. Maintain cluster software and resource headroom during rolling changes.

Explanation

Correct Answer

B:

For East Student Center, the decisive mechanism is VSX MC-LAG. MC-LAG provides one downstream LAG across two independently managed VSX peers. Stage MC-LAG moves to avoid temporary duplicate standalone loops is an enduring limitation on the operational risk, not simply a one-time passing test.

Incorrect Answers

A:

This is relevant to VRRP redundant gateway, where VRRP supplies virtual first-hop gateway failover between eligible routing peers In the East Student Center case, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is mC-LAG provides one downstream LAG across two independently managed VSX peers

C:

This is relevant to Loop protection, where loop detection complements STP by containing accidental edge loops In the East Student Center case, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is mC-LAG provides one downstream LAG across two independently managed VSX peers

D:

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 East Student Center case, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is mC-LAG provides one downstream LAG across two independently managed VSX peers