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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 106

Question 1050

An access network requires prevention of forged source-IP traffic from endpoints with stolen static addresses. Which TWO coordinated steps provide the immediate correction and a sensible ongoing safeguard? Select two.

  1. Match native and tagged VLAN behavior on the trunk's two endpoints.
  2. Keep user-facing ports untrusted and alert on rogue server attempts.
  3. Use IP source lockdown or an equivalent supported binding-enforcement control with correctly learned or approved bindings.
  4. Audit binding table sources and static-device exceptions.

Explanation

Correct Answers

C:

This is the corrective intervention because mAC-to-IP-to-port ownership is not enforced by ordinary VLAN isolation. Confirm its effect using the specified operational recovery check.

D:

This adds the continuing safeguard so the corrected failure does not recur after the original intervention.

Incorrect Answers

A:

This action fits a different incident: an 802.1Q trunk carries VLAN 20 untagged on one end and tagged on the other, causing intermittent DHCP placement. It is not the targeted repair for this case.

B:

That safeguard would suit a different situation, such as when a rogue small office router begins answering DHCP on an open desk port. It does not specifically prevent this problem.

Question 1051

An edge port has port-security configured for one device and a desk phone with a downstream PC is unexpectedly blocked. Which TWO coordinated steps provide the immediate correction and a sensible ongoing safeguard? Select two.

  1. Explain per-flow hashing behavior and distribute independent flows rather than assuming one flow is striped packet-by-packet.
  2. Monitor querier presence and group membership after IPTV changes.
  3. Select a supported multi-device policy or validated endpoint topology appropriate for phone-plus-PC access.
  4. Document expected device counts and secure authentication mode for each endpoint class.

Explanation

Correct Answers

C:

This is the corrective intervention because the configured client limit is narrower than the legitimate topology behind that port. Confirm its effect using the specified operational recovery check.

D:

This adds the continuing safeguard so the corrected failure does not recur after the original intervention.

Incorrect Answers

A:

This action fits a different incident: a LAG uses a hash selection that causes one large storage flow to occupy a single member while other links remain mostly idle. It is not the targeted repair for this case.

B:

That safeguard would suit a different situation, such as when a multicast video stream floods every port in a VLAN after an IGMP snooping feature is disabled. It does not specifically prevent this problem.

Question 1052

A multicast video stream floods every port in a VLAN after an IGMP snooping feature is disabled. Which TWO coordinated steps provide the immediate correction and a sensible ongoing safeguard? Select two.

  1. Enable and correctly operate IGMP snooping with a reachable querier for the VLAN.
  2. Restore a supported loop-free topology with RSTP or an approved equivalent redundancy design.
  3. Audit binding table sources and static-device exceptions.
  4. Monitor querier presence and group membership after IPTV changes.

Explanation

Correct Answers

A:

This is the corrective intervention because without membership-based snooping, multicast may be flooded like unknown traffic. Confirm its effect using the specified operational recovery check.

D:

This adds the continuing safeguard so the corrected failure does not recur after the original intervention.

Incorrect Answers

B:

This action fits a different incident: a campus administrator disables STP globally to reduce convergence time, and a redundant link introduces a broadcast storm. It is not the targeted repair for this case.

C:

That safeguard would suit a different situation, such as when an access network requires prevention of forged source-IP traffic from endpoints with stolen static addresses. It does not specifically prevent this problem.

Question 1053

A newly enabled MSTP configuration blocks the wrong uplink because two switches assign VLANs to inconsistent instances. Which TWO coordinated steps provide the immediate correction and a sensible ongoing safeguard? Select two.

  1. Match native and tagged VLAN behavior on the trunk's two endpoints.
  2. Align the MST region name, revision and VLAN-to-instance mapping across the intended region.
  3. Version-control MST region mappings as a single campus standard.
  4. Keep physical port-to-VLAN mappings in endpoint provisioning records.

Explanation

Correct Answers

B:

This is the corrective intervention because mismatched MST region parameters prevent consistent intended spanning-tree instance behavior. Confirm its effect using the specified operational recovery check.

C:

This adds the continuing safeguard so the corrected failure does not recur after the original intervention.

Incorrect Answers

A:

This action fits a different incident: an 802.1Q trunk carries VLAN 20 untagged on one end and tagged on the other, causing intermittent DHCP placement. It is not the targeted repair for this case.

D:

That safeguard would suit a different situation, such as when a new finance printer is connected to an access port in VLAN 130, but the subnet gateway is an SVI in VLAN 120. It does not specifically prevent this problem.

Question 1054

A campus administrator disables STP globally to reduce convergence time, and a redundant link introduces a broadcast storm. Which TWO coordinated steps provide the immediate correction and a sensible ongoing safeguard? Select two.

  1. Implement supported user-role or microsegmentation policy based on the authenticated identity or client class.
  2. Restore a supported loop-free topology with RSTP or an approved equivalent redundancy design.
  3. Require loop-prevention approval for every Layer 2 redundancy change.
  4. Retest role-based separation when identity or WLAN mappings change.

Explanation

Correct Answers

B:

This is the corrective intervention because a Layer 2 network with parallel paths and no loop avoidance can replicate frames indefinitely. Confirm its effect using the specified operational recovery check.

C:

This adds the continuing safeguard so the corrected failure does not recur after the original intervention.

Incorrect Answers

A:

This action fits a different incident: a security requirement calls for isolating two guest groups inside one SSID, but both groups land in an unrestricted shared VLAN. It is not the targeted repair for this case.

D:

That safeguard would suit a different situation, such as when a security requirement calls for isolating two guest groups inside one SSID, but both groups land in an unrestricted shared VLAN. It does not specifically prevent this problem.

Question 1055

A service requires large Ethernet payloads, but a path across several CX switches drops only oversized frames. Which TWO coordinated steps provide the immediate correction and a sensible ongoing safeguard? Select two.

  1. Set a mutually supported MTU end-to-end on participating interfaces, validating hardware limits.
  2. Move the port to the approved finance VLAN and ensure the correct SVI and DHCP scope are used.
  3. Monitor MAC table occupancy and churn for high-density VLANs.
  4. Document MTU expectations across the entire service path.

Explanation

Correct Answers

A:

This is the corrective intervention because an intermediate link has a smaller MTU than the application's required packet size. Confirm its effect using the specified operational recovery check.

D:

This adds the continuing safeguard so the corrected failure does not recur after the original intervention.

Incorrect Answers

B:

This action fits a different incident: a new finance printer is connected to an access port in VLAN 130, but the subnet gateway is an SVI in VLAN 120. It is not the targeted repair for this case.

C:

That safeguard would suit a different situation, such as when an access switch shows a large unknown-unicast flood after several upstream MAC addresses aged out too quickly. It does not specifically prevent this problem.

Question 1056

A switch port connected to a hypervisor must carry three isolated tenant VLANs, but it is left in access mode. Which TWO coordinated steps provide the immediate correction and a sensible ongoing safeguard? Select two.

  1. Implement supported user-role or microsegmentation policy based on the authenticated identity or client class.
  2. Configure an approved tagged trunk with precisely the tenant VLANs required.
  3. Include static forwarding table cleanup in change records for moved equipment.
  4. Validate virtualization host VLAN mappings against switchport mode.

Explanation

Correct Answers

B:

This is the corrective intervention because access mode sends traffic for one untagged VLAN instead of carrying multiple tagged networks. Confirm its effect using the specified operational recovery check.

D:

This adds the continuing safeguard so the corrected failure does not recur after the original intervention.

Incorrect Answers

A:

This action fits a different incident: a security requirement calls for isolating two guest groups inside one SSID, but both groups land in an unrestricted shared VLAN. It is not the targeted repair for this case.

C:

That safeguard would suit a different situation, such as when a campus uses static MAC entries for critical systems, but after an authorized server relocation traffic still forwards to the old port. It does not specifically prevent this problem.

Question 1057

A campus uses static MAC entries for critical systems, but after an authorized server relocation traffic still forwards to the old port. Which TWO coordinated steps provide the immediate correction and a sensible ongoing safeguard? Select two.

  1. Configure the relay destination and source within the correct VLAN and VRF reachability context.
  2. Review trunk allow lists during AP and SSID changes.
  3. Update or remove the obsolete static forwarding entry using the approved relocation process.
  4. Include static forwarding table cleanup in change records for moved equipment.

Explanation

Correct Answers

C:

This is the corrective intervention because a static MAC location can override learning even after the host changes location. Confirm its effect using the specified operational recovery check.

D:

This adds the continuing safeguard so the corrected failure does not recur after the original intervention.

Incorrect Answers

A:

This action fits a different incident: a client subnet uses an on-box DHCP relay but its requests never reach the centralized server after a VRF split. It is not the targeted repair for this case.

B:

That safeguard would suit a different situation, such as when an AP trunk has every VLAN enabled, allowing guest client traffic onto a restricted internal network. It does not specifically prevent this problem.

Question 1058

A new Layer 3 switch hosts the user VLAN gateway but the SVI mask excludes part of the expected address range. Which TWO coordinated steps provide the immediate correction and a sensible ongoing safeguard? Select two.

  1. Trust only the authorized DHCP server-facing path and retain untrusted client access ports.
  2. Keep binding enforcement and legitimate static-device exceptions documented.
  3. Correct the gateway SVI subnet mask to the approved addressing plan.
  4. Cross-check subnet calculations before SVI deployments.

Explanation

Correct Answers

C:

This is the corrective intervention because the incorrect subnet boundary makes some intended local hosts appear remote or unreachable. Confirm its effect using the specified operational recovery check.

D:

This adds the continuing safeguard so the corrected failure does not recur after the original intervention.

Incorrect Answers

A:

This action fits a different incident: a switch is configured with DHCP snooping, but legitimate lease offers arriving from the authorized DHCP uplink are dropped. It is not the targeted repair for this case.

B:

That safeguard would suit a different situation, such as when a campus needs to reduce ARP spoofing from open lab ports, yet engineers plan to permit all ARP replies. It does not specifically prevent this problem.

Question 1059

A campus needs to reduce ARP spoofing from open lab ports, yet engineers plan to permit all ARP replies. Which TWO coordinated steps provide the immediate correction and a sensible ongoing safeguard? Select two.

  1. Align the MST region name, revision and VLAN-to-instance mapping across the intended region.
  2. Track usable access members as part of SVI availability checks.
  3. Use a supported ARP validation or source-binding control appropriate for the platform and VLAN.
  4. Keep binding enforcement and legitimate static-device exceptions documented.

Explanation

Correct Answers

C:

This is the corrective intervention because unvalidated ARP claims can redirect traffic by associating gateway IPs with attacker MACs. Confirm its effect using the specified operational recovery check.

D:

This adds the continuing safeguard so the corrected failure does not recur after the original intervention.

Incorrect Answers

A:

This action fits a different incident: a newly enabled MSTP configuration blocks the wrong uplink because two switches assign VLANs to inconsistent instances. It is not the targeted repair for this case.

B:

That safeguard would suit a different situation, such as when a CX switch has a healthy SVI but hosts cannot reach the directly connected gateway because the VLAN has no active member ports. It does not specifically prevent this problem.

Question 1060

A distribution switch applies an ingress ACL to a routed SVI, but administrators expect it to block frames bridged only inside the same VLAN. Which TWO coordinated steps provide the immediate correction and a sensible ongoing safeguard? Select two.

  1. Correct the gateway SVI subnet mask to the approved addressing plan.
  2. Choose the supported policy enforcement point for Layer 2 traffic instead of relying on an SVI routed ACL alone.
  3. Map each policy requirement to the actual transit and enforcement layer.
  4. Version-control MST region mappings as a single campus standard.

Explanation

Correct Answers

B:

This is the corrective intervention because an L3 SVI ACL may not inspect traffic that never traverses that routed interface. Confirm its effect using the specified operational recovery check.

C:

This adds the continuing safeguard so the corrected failure does not recur after the original intervention.

Incorrect Answers

A:

This action fits a different incident: a new Layer 3 switch hosts the user VLAN gateway but the SVI mask excludes part of the expected address range. It is not the targeted repair for this case.

D:

That safeguard would suit a different situation, such as when a newly enabled MSTP configuration blocks the wrong uplink because two switches assign VLANs to inconsistent instances. It does not specifically prevent this problem.