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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 89

Question 880

At North Library, an IDF trunk carries voice VLAN 310 but its upstream interface mistakenly permits only data VLAN 110. Which observation most directly isolates the likely cause before any change?

  1. Cross-check operational speed duplex FCS errors and auto-negotiation on each side of the link.
  2. Examine local and remote LLDP chassis port and management addresses against physical patch records.
  3. Examine per-port tag membership and tagged packet captures at the failing VLAN boundary.
  4. Examine switch PoE allocation operational draw power-denial and AP boot-event evidence.

Explanation

Correct Answer

C:

For North Library, the decisive mechanism is 802.1Q VLAN tagging. 802.1Q tagging preserves logical broadcast-domain identity over shared Ethernet links. Inspect per-port tag membership and tagged packet captures at the failing VLAN boundary is the most direct way to isolate this particular failure before making a change.

Incorrect Answers

A:

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

B:

This is relevant to LLDP topology and discovery, where lLDP supplies adjacent-device identity without proving end-to-end routing or authentication In the North Library case, Those observations could be normal while the stated fault persists. The specific mechanism is 802.1Q tagging preserves logical broadcast-domain identity over shared Ethernet links

D:

This is relevant to PoE power negotiation, where 802.3af at and bt power classes and the switch budget constrain device operation In the North Library case, Those observations could be normal while the stated fault persists. The specific mechanism is 802.1Q tagging preserves logical broadcast-domain identity over shared Ethernet links

Question 881

At Medical Annex, a new neighbor fails to form because mismatched hello/dead intervals are configured. What targeted evidence should the network engineer collect first?

  1. Examine active equal-cost routes flow hashing and actual per-link counters.
  2. Examine IPv6 link-local neighbors OSPFv3 interface area and router ID.
  3. Examine VRRP advertisements gateway owner and virtual MAC state.
  4. Examine received hello timers and neighbor reset reasons.

Explanation

Correct Answer

D:

For Medical Annex, the decisive mechanism is OSPF hello and dead timers. OSPF timer mismatches can prevent reliable adjacency even when IP connectivity exists. Inspect received hello timers and neighbor reset reasons is the most direct way to isolate this particular failure before making a change.

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 Medical Annex case, Those observations could be normal while the stated fault persists. The specific mechanism is oSPF timer mismatches can prevent reliable adjacency even when IP connectivity exists

B:

This is relevant to IPv6 OSPFv3 adjacency, where oSPFv3 exchanges IPv6 routing information through a separately configured protocol process In the Medical Annex case, Those observations could be normal while the stated fault persists. The specific mechanism is oSPF timer mismatches can prevent reliable adjacency even when IP connectivity exists

C:

This is relevant to First-hop gateway election, where VRRP abstracts the default gateway across eligible routing devices In the Medical Annex case, Those observations could be normal while the stated fault persists. The specific mechanism is oSPF timer mismatches can prevent reliable adjacency even when IP connectivity exists

Question 882

At Lakeside Classroom, a visitor completes a portal login yet remains in a restricted pre-authentication role. What safety boundary prevents the same campus failure in future deployments?

  1. Avoid excessive AP transmit power that creates broad overlapping cells.
  2. Follow regulatory channel availability and avoid indiscriminate band use.
  3. Retain guest clients isolated from internal networks throughout portal state changes.
  4. Repeat surveys after major layout or material changes rather than trusting only plans.

Explanation

Correct Answer

C:

For Lakeside Classroom, the decisive mechanism is Guest portal and role. Captive portal authentication and post-login role enforcement are separate controls. Keep guest clients isolated from internal networks throughout portal state changes is an enduring limitation on the operational risk, not simply a one-time passing test.

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 Lakeside Classroom case, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is captive portal authentication and post-login role enforcement are separate controls

B:

This is relevant to Adjacent-channel overlap, where adjacent-channel overlap can corrupt transmissions without the coordination of co-channel sharing In the Lakeside Classroom case, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is captive portal authentication and post-login role enforcement are separate controls

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 Lakeside Classroom case, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is captive portal authentication and post-login role enforcement are separate controls

Question 883

At North Library, a visitor role reaches restricted servers despite being assigned a guest policy. What should the engineer implement first to correct the stated condition?

  1. Enforce role or group-based segmentation at the supported switching/gateway point.
  2. Set up supported RADIUS accounting and consistent session identifier delivery.
  3. Return and enforce the correct identity-based role or VLAN through ClearPass and access infrastructure.
  4. Coordinate valid certificate chain rotation and trust propagation before expiry.

Explanation

Correct Answer

C:

For North Library, the decisive mechanism is ClearPass role-based enforcement. ClearPass decides authorization outcomes while network devices enforce assigned policy. Return and enforce the correct identity-based role or VLAN through ClearPass and access infrastructure establishes the needed configuration in the case rather than merely measuring a symptom.

Incorrect Answers

A:

This is relevant to Campus microsegmentation, where role-based segmentation can limit lateral flows beyond simple VLAN separation In the North Library case, Changing that neighboring feature does not implement the missing function. The specific mechanism is clearPass decides authorization outcomes while network devices enforce assigned policy

B:

This is relevant to RADIUS accounting traceability, where authentication and accounting provide different information and require separate configuration In the North Library case, Changing that neighboring feature does not implement the missing function. The specific mechanism is clearPass decides authorization outcomes while network devices enforce assigned policy

D:

This is relevant to Certificate renewal workflow, where authentication availability depends on valid certificate lifecycle at both ends In the North Library case, Changing that neighboring feature does not implement the missing function. The specific mechanism is clearPass decides authorization outcomes while network devices enforce assigned policy

Question 884

At Administration Block, wireless monitoring detects an unauthorized AP mimicking the corporate SSID. Which implementation directly addresses this campus fault without replacing the wrong component?

  1. Classify the suspect AP with evidence and apply only authorized response procedures.
  2. Provide valid server certificate and appropriate client trust configuration for EAP-TLS.
  3. Enforce role or group-based segmentation at the supported switching/gateway point.
  4. Establish trusted EAP-TLS client certificate chain identity policy and validity checks in ClearPass.

Explanation

Correct Answer

A:

For Administration Block, the decisive mechanism is Rogue AP response. Rogue identification differs from automatically assuming all same-name neighbor APs are malicious. Classify the suspect AP with evidence and apply only authorized response procedures establishes the needed configuration in the case rather than merely measuring a symptom.

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 Administration Block case, Changing that neighboring feature does not implement the missing function. 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, Changing that neighboring feature does not implement the missing function. The specific mechanism is rogue identification differs from automatically assuming all same-name neighbor APs are malicious

D:

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, Changing that neighboring feature does not implement the missing function. The specific mechanism is rogue identification differs from automatically assuming all same-name neighbor APs are malicious

Question 885

At Learning Commons, a third-party tenant switch advertises a superior STP root on a downstream handoff. What recurring protection should accompany this configuration?

  1. Stage ACL changes with console rollback to avoid management lockout.
  2. Do not enable root guard on paths that legitimately must learn a different root.
  3. Guard against arbitrary untrusted client VLAN tagging on shared ports.
  4. Do not enable jumbo frames on one device without validating intermediate hops.

Explanation

Correct Answer

B:

For Learning Commons, the decisive mechanism is Root guard downstream. Root guard prevents a protected port from accepting a superior root advertisement. Do not enable root guard on paths that legitimately must learn a different root is an enduring limitation on the operational risk, not simply a one-time passing test.

Incorrect Answers

A:

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, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is root guard prevents a protected port from accepting a superior root advertisement

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 Learning Commons case, A precaution for another failure mode is not the enduring boundary needed here. 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, A precaution for another failure mode is not the enduring boundary needed here. The specific mechanism is root guard prevents a protected port from accepting a superior root advertisement

Question 886

At Innovation Studio, a laptop repeatedly disconnects during short wired reauthentication cycles. Which practical change is best suited to this topology and its constraints?

  1. Enable supported 802.1X authenticator and approved ClearPass RADIUS profiles on the switchport.
  2. Return supported VLAN or role attributes that match network enforcement configuration.
  3. Tune supported reauthentication and EAP timers based on measured client/server behavior.
  4. Configure appropriate RADIUS failover and tested timeout/retry settings.

Explanation

Correct Answer

C:

For Innovation Studio, the decisive mechanism is Supplicant reauthentication intervals. Wired reauthentication intervals can affect session continuity if handshake timing is inadequate. Tune supported reauthentication and EAP timers based on measured client/server behavior establishes the needed configuration in the case rather than merely measuring a symptom.

Incorrect Answers

A:

This is relevant to Wired 802.1X port access, where 802.1X authorizes port traffic through EAPOL and the authentication server decision In the Innovation Studio case, Changing that neighboring feature does not implement the missing function. The specific mechanism is wired reauthentication intervals can affect session continuity if handshake timing is inadequate

B:

This is relevant to ClearPass enforcement attributes, where an Access-Accept alone does not guarantee the intended authorization role was applied In the Innovation Studio case, Changing that neighboring feature does not implement the missing function. The specific mechanism is wired reauthentication intervals can affect session continuity if handshake timing is inadequate

D:

This is relevant to RADIUS authorization timeout, where authentication server reachability and retry order influence network-admission decisions In the Innovation Studio case, Changing that neighboring feature does not implement the missing function. The specific mechanism is wired reauthentication intervals can affect session continuity if handshake timing is inadequate

Question 887

At Convention Center, two distribution VSX peers use inconsistent virtual gateway MAC/IP for a staff VLAN. Which observation most directly isolates the likely cause before any change?

  1. Inspect VRRP advertisement state owner transitions and VLAN reachability.
  2. Inspect loop-protect logs MAC flapping and abnormal broadcast traffic.
  3. Inspect cluster membership firmware compatibility load and tunnel health per gateway.
  4. Compare configured and operational gateway state and ARP entries on both VSX peers.

Explanation

Correct Answer

D:

For Convention Center, the decisive mechanism is VSX active gateway. VSX active gateway allows distributed L3 gateway forwarding when configured consistently. Compare configured and operational gateway state and ARP entries on both VSX peers is the most direct way to isolate this particular failure before making a change.

Incorrect Answers

A:

This is relevant to VRRP redundant gateway, where VRRP supplies virtual first-hop gateway failover between eligible routing peers In the Convention Center case, Those observations could be normal while the stated fault persists. The specific mechanism is vSX active gateway allows distributed L3 gateway forwarding when configured consistently

B:

This is relevant to Loop protection, where loop detection complements STP by containing accidental edge loops In the Convention Center case, Those observations could be normal while the stated fault persists. The specific mechanism is vSX active gateway allows distributed L3 gateway forwarding when configured consistently

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 Convention Center case, Those observations could be normal while the stated fault persists. The specific mechanism is vSX active gateway allows distributed L3 gateway forwarding when configured consistently

Question 888

At Learning Commons, a handheld shows strong signal but high retry rate beside machinery at lunch hour. 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. Measure SNR interference channel occupancy and endpoint retransmission evidence.
  4. Correct SSID-to-VLAN and switch trunk membership for the intended segment.

Explanation

Correct Answer

C:

For Learning Commons, the decisive mechanism is Low SNR wireless retries. Signal strength without a noise context cannot establish usable WLAN quality. Measure SNR interference channel occupancy and endpoint retransmission evidence establishes the needed configuration in the case rather than merely measuring a symptom.

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, Changing that neighboring feature does not implement the missing function. The specific mechanism is signal strength without a noise context cannot establish usable WLAN quality

B:

This is relevant to Routed blackhole, where route presence alone does not prove usable bidirectional forwarding In the Learning Commons case, Changing that neighboring feature does not implement the missing function. The specific mechanism is signal strength without a noise context cannot establish usable WLAN quality

D:

This is relevant to Wrong VLAN mapping, where wLAN-to-wired mapping errors can appear as a DHCP or authorization defect In the Learning Commons case, Changing that neighboring feature does not implement the missing function. The specific mechanism is signal strength without a noise context cannot establish usable WLAN quality

Question 889

At Research Hub, a new 10-Gb uplink uses an SR optic across a long single-mode campus backbone. What should the engineer implement first to correct the stated condition?

  1. Select supported transceivers fiber type wavelength and distance for both endpoints.
  2. Verify subscription device identity Central assignment and management reachability in the authorized tenant.
  3. Bind the device to its approved group and review group-level settings and local overrides.
  4. Add an authorized management-VRF route and correct source reachability for the target service.

Explanation

Correct Answer

A:

For Research Hub, the decisive mechanism is Fiber optic transceiver fit. Optical compatibility relies on physical medium optics reach and platform support. Select supported transceivers fiber type wavelength and distance for both endpoints establishes the needed configuration in the case rather than merely measuring a symptom.

Incorrect Answers

B:

This is relevant to Central device onboarding, where cloud inventory association and device management connectivity are separate onboarding requirements In the Research Hub case, Changing that neighboring feature does not implement the missing function. The specific mechanism is optical compatibility relies on physical medium optics reach and platform support

C:

This is relevant to Central group assignment, where central groups govern configuration inheritance while sites mainly aid location and operations In the Research Hub case, Changing that neighboring feature does not implement the missing function. The specific mechanism is optical compatibility relies on physical medium optics reach and platform support

D:

This is relevant to Management VRF reachability, where aOS-CX management VRF and default forwarding VRF may have separate reachability In the Research Hub case, Changing that neighboring feature does not implement the missing function. The specific mechanism is optical compatibility relies on physical medium optics reach and platform support

Question 890

At Technology Center, contractors successfully authenticate but receive full staff network permissions. Which TWO responses together provide a direct implementation and a continuing safeguard for the stated risk? Select TWO answers.

  1. Keep least-privilege default roles and audit policy ordering.
  2. Enforce role or group-based segmentation at the supported switching/gateway point.
  3. Return and enforce the correct identity-based role or VLAN through ClearPass and access infrastructure.
  4. Protect log integrity retention and access according to data policy.

Explanation

Correct Answers

A:

This is the continuing risk-control element for Technology Center. Keep least-privilege default roles and audit policy ordering prevents a future regression or unauthorized relaxation of the repair; it complements, rather than replaces, the implementation.

C:

This is the implementation element for the Technology Center case: ClearPass decides authorization outcomes while network devices enforce assigned policy. The specific action Return and enforce the correct identity-based role or VLAN through ClearPass and access infrastructure addresses the stated fault; the question also requires a persistent risk control.

Incorrect Answers

B:

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 ClearPass role-based enforcement requirement in Technology Center and is not one of the two controls requested. The direct mechanism here is clearPass decides authorization outcomes while network devices enforce assigned policy

D:

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 ClearPass role-based enforcement requirement in Technology Center and is not one of the two controls requested. The direct mechanism here is clearPass decides authorization outcomes while network devices enforce assigned policy