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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 112

Question 1110

A policy requires restricted services in a management VRF to reach a shared NTP system but forbids broad connectivity to the production user VRF. Which TWO coordinated steps provide the immediate correction and a sensible ongoing safeguard? Select two.

  1. Configure monitored failover or route tracking so the backup next hop becomes active when the primary path fails.
  2. Require provider-supplied ASN verification before peer activation.
  3. Implement a narrow supported service reachability or controlled route-leak policy for the NTP destination.
  4. Review VRF leak prefix filters with every shared-service addition.

Explanation

Correct Answers

C:

This is the corrective intervention because VRF separation blocks required shared services unless an explicit controlled path exists. 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 campus core has a default route toward a failed WAN link, while the healthy standby WAN is not preferred. It is not the targeted repair for this case.

B:

That safeguard would suit a different situation, such as when a campus BGP peering to an ISP remains Idle because the local neighbor remote-AS setting is incorrect. It does not specifically prevent this problem.

Question 1111

A distribution switch learns a specific /24 route and a broader /16 summary; engineers expect the summary to override the specific route. Which TWO coordinated steps provide the immediate correction and a sensible ongoing safeguard? Select two.

  1. Preserve the correctly learned specific route and apply longest-prefix-match forwarding.
  2. Validate route specificity before implementing summaries or filters.
  3. Filter unauthorized default-route redistribution while allowing intended connected service routes.
  4. Document OSPF network type and adjacency expectations.

Explanation

Correct Answers

A:

This is the corrective intervention because forwarding decisions favor the most specific matching destination prefix, not simply the broadest summary. Confirm its effect using the specified operational recovery check.

B:

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

Incorrect Answers

C:

This action fits a different incident: a campus OSPF redistribution policy accidentally injects a default route from a disconnected guest gateway into the internal core. It is not the targeted repair for this case.

D:

That safeguard would suit a different situation, such as when an OSPF neighbor becomes stuck at 2-Way on a multiaccess broadcast network and the engineer expects every pair of routers to reach Full. It does not specifically prevent this problem.

Question 1112

A campus OSPF redistribution policy accidentally injects a default route from a disconnected guest gateway into the internal core. Which TWO coordinated steps provide the immediate correction and a sensible ongoing safeguard? Select two.

  1. Restore appropriate area 0 connectivity or use a carefully justified supported backbone extension.
  2. Filter unauthorized default-route redistribution while allowing intended connected service routes.
  3. Require prefix and route-source review for redistribution changes.
  4. Validate area topology before routing changes or new site turnup.

Explanation

Correct Answers

B:

This is the corrective intervention because an overly broad redistribution policy advertises a default reachability the gateway cannot actually provide. 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 OSPF multi-area design attaches a remote area directly to another remote area without an approved backbone connection or virtual-link design. It is not the targeted repair for this case.

D:

That safeguard would suit a different situation, such as when an OSPF multi-area design attaches a remote area directly to another remote area without an approved backbone connection or virtual-link design. It does not specifically prevent this problem.

Question 1113

A branch has two equally routed core uplinks, but one should be reserved as a backup for high-priority traffic. Which TWO coordinated steps provide the immediate correction and a sensible ongoing safeguard? Select two.

  1. Inspect the routed-port configuration and establish the required L3 neighbor and routing exchange.
  2. Set supported route costs or policy attributes to express the approved primary/backup preference.
  3. Require provider-supplied ASN verification before peer activation.
  4. Keep route metric decisions in a documented traffic engineering plan.

Explanation

Correct Answers

B:

This is the corrective intervention because equal-cost route selection can use both paths when the design expects one standby route. 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 campus uplink is configured as an unnumbered Layer 3 interface but operators try to troubleshoot it as a tagged L2 trunk. It is not the targeted repair for this case.

C:

That safeguard would suit a different situation, such as when a campus BGP peering to an ISP remains Idle because the local neighbor remote-AS setting is incorrect. It does not specifically prevent this problem.

Question 1114

A device sends packets to a remote IPv6 network, but return traffic fails because the remote router lacks the source-prefix route. Which TWO coordinated steps provide the immediate correction and a sensible ongoing safeguard? Select two.

  1. Restore symmetric bidirectional reachability by advertising or adding the missing return prefix.
  2. Advertise only correctly bounded summaries and explicit exceptions matching owned reachability.
  3. Test source and destination route visibility from both ends.
  4. Include MTU symmetry checks in routed-link provisioning.

Explanation

Correct Answers

A:

This is the corrective intervention because one-way route knowledge is insufficient for a completed IP conversation. 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

B:

This action fits a different incident: a network team wants to aggregate many campus subnets but summarizes beyond a boundary that includes networks it does not own. It is not the targeted repair for this case.

D:

That safeguard would suit a different situation, such as when an OSPF adjacency remains in ExStart after a new routed uplink is installed with conflicting MTU settings. It does not specifically prevent this problem.

Question 1115

A campus BGP peering to an ISP remains Idle because the local neighbor remote-AS setting is incorrect. Which TWO coordinated steps provide the immediate correction and a sensible ongoing safeguard? Select two.

  1. Configure the verified remote AS and required peer reachability and authentication.
  2. Require provider-supplied ASN verification before peer activation.
  3. Withdraw the obsolete static route or correct its administrative distance based on the cutover plan.
  4. Teach route lookup precedence in troubleshooting runbooks.

Explanation

Correct Answers

A:

This is the corrective intervention because BGP session establishment depends on matching peer identity and reachable transport details. Confirm its effect using the specified operational recovery check.

B:

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

Incorrect Answers

C:

This action fits a different incident: a WAN cutover leaves a static route pointing to an old gateway while the current routing protocol advertises a new next hop. It is not the targeted repair for this case.

D:

That safeguard would suit a different situation, such as when a default route learned from dynamic routing persists despite a better directly connected route for an internal subnet. It does not specifically prevent this problem.

Question 1116

A BGP peer is Established but upstream routes are not accepted due to a prefix filter that rejects the approved campus CIDR. Which TWO coordinated steps provide the immediate correction and a sensible ongoing safeguard? Select two.

  1. Restore symmetric bidirectional reachability by advertising or adding the missing return prefix.
  2. Adjust the inbound route policy narrowly to permit intended prefixes.
  3. Stage and review prefix-list changes against known advertisements.
  4. Validate route specificity before implementing summaries or filters.

Explanation

Correct Answers

B:

This is the corrective intervention because a working BGP session can still install no routes when policy filters reject them. 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 device sends packets to a remote IPv6 network, but return traffic fails because the remote router lacks the source-prefix route. It is not the targeted repair for this case.

D:

That safeguard would suit a different situation, such as when a distribution switch learns a specific /24 route and a broader /16 summary; engineers expect the summary to override the specific route. It does not specifically prevent this problem.

Question 1117

A network team wants to aggregate many campus subnets but summarizes beyond a boundary that includes networks it does not own. Which TWO coordinated steps provide the immediate correction and a sensible ongoing safeguard? Select two.

  1. Install the route or approved controlled route leak in the correct guest VRF.
  2. Advertise only correctly bounded summaries and explicit exceptions matching owned reachability.
  3. Validate address ownership before route aggregation changes.
  4. Use a standard transit-address pool with mask validation.

Explanation

Correct Answers

B:

This is the corrective intervention because overbroad aggregation can attract traffic for prefixes without a valid downstream path. 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 campus routes guest and employee traffic in separate VRFs but a technician adds a guest static route only to the employee VRF. It is not the targeted repair for this case.

D:

That safeguard would suit a different situation, such as when a team adds a new L3 transit VLAN but configures the wrong IP mask on one side of the point-to-point link. It does not specifically prevent this problem.

Question 1118

A core's next-hop route remains installed during a routed link fault because physical interface status stays up across an intermediate carrier. Which TWO coordinated steps provide the immediate correction and a sensible ongoing safeguard? Select two.

  1. Renumber or resegment overlapping prefixes or establish an explicitly designed translation boundary.
  2. Use supported BFD or equivalent reachability detection integrated with routing where appropriate.
  3. Explicitly track static-route retirement in WAN change records.
  4. Monitor both peer-liveness signals and application reachability during failover tests.

Explanation

Correct Answers

B:

This is the corrective intervention because link carrier alone does not prove end-to-end forwarding through intermediate devices. 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 campus advertises overlapping VLAN subnet ranges across two sites, generating unpredictable routing to both. It is not the targeted repair for this case.

C:

That safeguard would suit a different situation, such as when a WAN cutover leaves a static route pointing to an old gateway while the current routing protocol advertises a new next hop. It does not specifically prevent this problem.

Question 1119

An OSPF router has a healthy adjacency but a destination prefix is missing after someone configured a restrictive inbound route filter. Which TWO coordinated steps provide the immediate correction and a sensible ongoing safeguard? Select two.

  1. Review the effective routing filter and allow the explicitly intended prefix.
  2. Log prefix-filter changes and validate intended route inventories.
  3. Restore the appropriate route before making speculative changes to permit ACLs.
  4. Monitor both peer-liveness signals and application reachability during failover tests.

Explanation

Correct Answers

A:

This is the corrective intervention because a neighbor can exchange control traffic while route acceptance remains policy-constrained. Confirm its effect using the specified operational recovery check.

B:

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

Incorrect Answers

C:

This action fits a different incident: an ACL allows a remote application subnet, yet a client cannot access it because the SVI has no route to that destination. It is not the targeted repair for this case.

D:

That safeguard would suit a different situation, such as when a core's next-hop route remains installed during a routed link fault because physical interface status stays up across an intermediate carrier. It does not specifically prevent this problem.

Question 1120

A campus advertises overlapping VLAN subnet ranges across two sites, generating unpredictable routing to both. Which TWO coordinated steps provide the immediate correction and a sensible ongoing safeguard? Select two.

  1. Renumber or resegment overlapping prefixes or establish an explicitly designed translation boundary.
  2. Adjust the inbound route policy narrowly to permit intended prefixes.
  3. Apply central IPAM checks before approving new subnets.
  4. Monitor both peer-liveness signals and application reachability during failover tests.

Explanation

Correct Answers

A:

This is the corrective intervention because duplicate destination prefixes prevent unambiguous routed reachability between sites. 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

B:

This action fits a different incident: a BGP peer is Established but upstream routes are not accepted due to a prefix filter that rejects the approved campus CIDR. It is not the targeted repair for this case.

D:

That safeguard would suit a different situation, such as when a core's next-hop route remains installed during a routed link fault because physical interface status stays up across an intermediate carrier. It does not specifically prevent this problem.