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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 4

Question 30

A switch receives BPDUs on an access edge configured with BPDU protection and disables the port. Which immediate engineering change most directly addresses this issue?

  1. Configure client DHCP gateway or static settings to reference the VRRP virtual IP.
  2. Move keepalive onto a supported independent routed path or management VRF.
  3. Remove the unauthorized downstream switch or convert the port to an appropriately protected infrastructure role.
  4. Align OSPF area membership and compatible neighbor parameters on the affected link.

Explanation

Correct Answer

C:

The underlying issue is that the edge protection is responding to an unexpected bridge on a user-facing port. This intervention addresses that cause directly. A useful result to confirm is: the endpoint port remains healthy without permitting a rogue bridging device.

Incorrect Answers

A:

This is suited to a different condition, such as when a campus uses VRRP on an SVI but hosts keep targeting a physical gateway address rather than the shared virtual address. The reported fault instead arises because the edge protection is responding to an unexpected bridge on a user-facing port.

B:

This is suited to a different condition, such as when a VSX deployment uses a keepalive route through the same physical links as its inter-switch link. The reported fault instead arises because the edge protection is responding to an unexpected bridge on a user-facing port.

D:

This is suited to a different condition, such as when a redundant OSPF network has two uplinks, but one interface's routing adjacency never forms because its area ID is wrong. The reported fault instead arises because the edge protection is responding to an unexpected bridge on a user-facing port.

Question 31

A dual-homed server loses access after one LAG member fails because the remaining link has a mismatched VLAN allow list. Which immediate engineering change most directly addresses this issue?

  1. Deploy an approved first-hop redundancy or active-gateway design and validate upstream path failover.
  2. Validate spanning-tree roles and reconvergence, then remove misconfigured filtering that prevents the alternate path.
  3. Make VLAN membership consistent across all members of the intended logical aggregation.
  4. Configure client DHCP gateway or static settings to reference the VRRP virtual IP.

Explanation

Correct Answer

C:

The underlying issue is that the surviving member forwards only a subset of the VLANs required by the server. This intervention addresses that cause directly. A useful result to confirm is: a single-member failure leaves all required server VLANs reachable.

Incorrect Answers

A:

This is suited to a different condition, such as when a site uses a single access-switch uplink to two cores with static routes and expects automatic gateway failover when the first core fails. The reported fault instead arises because the surviving member forwards only a subset of the VLANs required by the server.

B:

This is suited to a different condition, such as when a distribution ring loses a link and traffic remains blocked despite alternate Layer 2 connectivity. The reported fault instead arises because the surviving member forwards only a subset of the VLANs required by the server.

D:

This is suited to a different condition, such as when a campus uses VRRP on an SVI but hosts keep targeting a physical gateway address rather than the shared virtual address. The reported fault instead arises because the surviving member forwards only a subset of the VLANs required by the server.

Question 32

A site uses a single access-switch uplink to two cores with static routes and expects automatic gateway failover when the first core fails. Which immediate engineering change most directly addresses this issue?

  1. Remove the loop and enforce appropriate edge loop protection or spanning-tree safeguards.
  2. Configure supported environmental telemetry for redundant power modules and test notification delivery.
  3. Deploy an approved first-hop redundancy or active-gateway design and validate upstream path failover.
  4. Use supported LACP and VSX recovery timers matched to the failover design and verify them in staged maintenance.

Explanation

Correct Answer

C:

The underlying issue is that a fixed next hop does not itself provide gateway availability after its core fails. This intervention addresses that cause directly. A useful result to confirm is: client service continues through the backup gateway when either supported core is isolated.

Incorrect Answers

A:

This is suited to a different condition, such as when an access switch experiences a broadcast storm after a user connects two LAN ports with a patch cable. The reported fault instead arises because a fixed next hop does not itself provide gateway availability after its core fails.

B:

This is suited to a different condition, such as when a core switch keeps forwarding after a power supply is removed, but a maintenance exercise shows no power fault alarm reaches operations. The reported fault instead arises because a fixed next hop does not itself provide gateway availability after its core fails.

D:

This is suited to a different condition, such as when a VSX peer restarts for an upgrade and port-channel traffic drops because the downstream LACP timeout is too strict for the expected convergence. The reported fault instead arises because a fixed next hop does not itself provide gateway availability after its core fails.

Question 33

A VSF stack has members connected in a line, so one intermember cable failure isolates the last unit. Which immediate engineering change most directly addresses this issue?

  1. Restore the designed ISL data path and validate VSX state while retaining independent keepalive connectivity.
  2. Set and verify the intended spanning-tree root priority on the designated distribution devices.
  3. Close the designed resilient stacking topology or add the supported alternate intermember link.
  4. Remove the loop and enforce appropriate edge loop protection or spanning-tree safeguards.

Explanation

Correct Answer

C:

The underlying issue is that a linear stacking topology leaves a single path to the last member. This intervention addresses that cause directly. A useful result to confirm is: the stack stays logically operational after a single intermember link outage.

Incorrect Answers

A:

This is suited to a different condition, such as when a VSX pair loses its inter-switch link and the team assumes the remaining keepalive alone carries user traffic between peers. The reported fault instead arises because a linear stacking topology leaves a single path to the last member.

B:

This is suited to a different condition, such as when two redundant switches disagree about the device that should be the STP root for a campus distribution VLAN. The reported fault instead arises because a linear stacking topology leaves a single path to the last member.

D:

This is suited to a different condition, such as when an access switch experiences a broadcast storm after a user connects two LAN ports with a patch cable. The reported fault instead arises because a linear stacking topology leaves a single path to the last member.

Question 34

A campus uses VRRP on an SVI but hosts keep targeting a physical gateway address rather than the shared virtual address. Which immediate engineering change most directly addresses this issue?

  1. Configure client DHCP gateway or static settings to reference the VRRP virtual IP.
  2. Align OSPF area membership and compatible neighbor parameters on the affected link.
  3. Deploy an approved first-hop redundancy or active-gateway design and validate upstream path failover.
  4. Validate spanning-tree roles and reconvergence, then remove misconfigured filtering that prevents the alternate path.

Explanation

Correct Answer

A:

The underlying issue is that hosts pointing to a physical router address cannot benefit from VRRP gateway movement. This intervention addresses that cause directly. A useful result to confirm is: after master failure, clients continue using the virtual gateway through the surviving router.

Incorrect Answers

B:

This is suited to a different condition, such as when a redundant OSPF network has two uplinks, but one interface's routing adjacency never forms because its area ID is wrong. The reported fault instead arises because hosts pointing to a physical router address cannot benefit from VRRP gateway movement.

C:

This is suited to a different condition, such as when a site uses a single access-switch uplink to two cores with static routes and expects automatic gateway failover when the first core fails. The reported fault instead arises because hosts pointing to a physical router address cannot benefit from VRRP gateway movement.

D:

This is suited to a different condition, such as when a distribution ring loses a link and traffic remains blocked despite alternate Layer 2 connectivity. The reported fault instead arises because hosts pointing to a physical router address cannot benefit from VRRP gateway movement.

Question 35

A redundant OSPF network has two uplinks, but one interface's routing adjacency never forms because its area ID is wrong. Which immediate engineering change most directly addresses this issue?

  1. Configure supported environmental telemetry for redundant power modules and test notification delivery.
  2. Align OSPF area membership and compatible neighbor parameters on the affected link.
  3. Set and verify the intended spanning-tree root priority on the designated distribution devices.
  4. Close the designed resilient stacking topology or add the supported alternate intermember link.

Explanation

Correct Answer

B:

The underlying issue is that OSPF peers in different areas cannot establish a normal shared-segment adjacency. This intervention addresses that cause directly. A useful result to confirm is: both expected OSPF neighbors reach Full state and the backup route is installed.

Incorrect Answers

A:

This is suited to a different condition, such as when a core switch keeps forwarding after a power supply is removed, but a maintenance exercise shows no power fault alarm reaches operations. The reported fault instead arises because OSPF peers in different areas cannot establish a normal shared-segment adjacency.

C:

This is suited to a different condition, such as when two redundant switches disagree about the device that should be the STP root for a campus distribution VLAN. The reported fault instead arises because OSPF peers in different areas cannot establish a normal shared-segment adjacency.

D:

This is suited to a different condition, such as when a VSF stack has members connected in a line, so one intermember cable failure isolates the last unit. The reported fault instead arises because OSPF peers in different areas cannot establish a normal shared-segment adjacency.

Question 36

A core switch keeps forwarding after a power supply is removed, but a maintenance exercise shows no power fault alarm reaches operations. Which immediate engineering change most directly addresses this issue?

  1. Use supported LACP and VSX recovery timers matched to the failover design and verify them in staged maintenance.
  2. Correct the shared active-gateway IP/MAC configuration on both VSX peers.
  3. Remove the loop and enforce appropriate edge loop protection or spanning-tree safeguards.
  4. Configure supported environmental telemetry for redundant power modules and test notification delivery.

Explanation

Correct Answer

D:

The underlying issue is that redundant hardware can mask a failure unless power-supply status is monitored. This intervention addresses that cause directly. A useful result to confirm is: operations receives a meaningful alert when either redundant PSU fails while traffic remains available.

Incorrect Answers

A:

This is suited to a different condition, such as when a VSX peer restarts for an upgrade and port-channel traffic drops because the downstream LACP timeout is too strict for the expected convergence. The reported fault instead arises because redundant hardware can mask a failure unless power-supply status is monitored.

B:

This is suited to a different condition, such as when two VSX peers advertise a default gateway, but client MAC learning oscillates after the peers use inconsistent active-gateway MAC addresses. The reported fault instead arises because redundant hardware can mask a failure unless power-supply status is monitored.

C:

This is suited to a different condition, such as when an access switch experiences a broadcast storm after a user connects two LAN ports with a patch cable. The reported fault instead arises because redundant hardware can mask a failure unless power-supply status is monitored.

Question 37

A VSX peer restarts for an upgrade and port-channel traffic drops because the downstream LACP timeout is too strict for the expected convergence. Which immediate engineering change most directly addresses this issue?

  1. Configure supported environmental telemetry for redundant power modules and test notification delivery.
  2. Align software versions through the vendor-supported stack upgrade and member compatibility process.
  3. Restore the designed ISL data path and validate VSX state while retaining independent keepalive connectivity.
  4. Use supported LACP and VSX recovery timers matched to the failover design and verify them in staged maintenance.

Explanation

Correct Answer

D:

The underlying issue is that the downstream aggregator declares the shared peer unavailable before the intended recovery completes. This intervention addresses that cause directly. A useful result to confirm is: planned single-peer maintenance preserves traffic within agreed failover behavior.

Incorrect Answers

A:

This is suited to a different condition, such as when a core switch keeps forwarding after a power supply is removed, but a maintenance exercise shows no power fault alarm reaches operations. The reported fault instead arises because the downstream aggregator declares the shared peer unavailable before the intended recovery completes.

B:

This is suited to a different condition, such as when a stack's standby control member cannot take over after a failover drill because the new member has incompatible firmware. The reported fault instead arises because the downstream aggregator declares the shared peer unavailable before the intended recovery completes.

C:

This is suited to a different condition, such as when a VSX pair loses its inter-switch link and the team assumes the remaining keepalive alone carries user traffic between peers. The reported fault instead arises because the downstream aggregator declares the shared peer unavailable before the intended recovery completes.

Question 38

An access switch experiences a broadcast storm after a user connects two LAN ports with a patch cable. Which immediate engineering change most directly addresses this issue?

  1. Remove the loop and enforce appropriate edge loop protection or spanning-tree safeguards.
  2. Configure client DHCP gateway or static settings to reference the VRRP virtual IP.
  3. Remove the unauthorized downstream switch or convert the port to an appropriately protected infrastructure role.
  4. Deploy an approved first-hop redundancy or active-gateway design and validate upstream path failover.

Explanation

Correct Answer

A:

The underlying issue is that a physical Layer 2 loop can repeatedly replicate flooded frames and saturate the segment. This intervention addresses that cause directly. A useful result to confirm is: storm counters stabilize and normal unicast forwarding returns without unintended blocked infrastructure links.

Incorrect Answers

B:

This is suited to a different condition, such as when a campus uses VRRP on an SVI but hosts keep targeting a physical gateway address rather than the shared virtual address. The reported fault instead arises because a physical Layer 2 loop can repeatedly replicate flooded frames and saturate the segment.

C:

This is suited to a different condition, such as when a switch receives BPDUs on an access edge configured with BPDU protection and disables the port. The reported fault instead arises because a physical Layer 2 loop can repeatedly replicate flooded frames and saturate the segment.

D:

This is suited to a different condition, such as when a site uses a single access-switch uplink to two cores with static routes and expects automatic gateway failover when the first core fails. The reported fault instead arises because a physical Layer 2 loop can repeatedly replicate flooded frames and saturate the segment.

Question 39

Two redundant switches disagree about the device that should be the STP root for a campus distribution VLAN. Which immediate engineering change most directly addresses this issue?

  1. Use supported LACP and VSX recovery timers matched to the failover design and verify them in staged maintenance.
  2. Deploy an approved first-hop redundancy or active-gateway design and validate upstream path failover.
  3. Set and verify the intended spanning-tree root priority on the designated distribution devices.
  4. Align software versions through the vendor-supported stack upgrade and member compatibility process.

Explanation

Correct Answer

C:

The underlying issue is that an unintended bridge root can steer traffic into a fragile or suboptimal topology. This intervention addresses that cause directly. A useful result to confirm is: the approved switch is root and alternate paths have documented blocking roles.

Incorrect Answers

A:

This is suited to a different condition, such as when a VSX peer restarts for an upgrade and port-channel traffic drops because the downstream LACP timeout is too strict for the expected convergence. The reported fault instead arises because an unintended bridge root can steer traffic into a fragile or suboptimal topology.

B:

This is suited to a different condition, such as when a site uses a single access-switch uplink to two cores with static routes and expects automatic gateway failover when the first core fails. The reported fault instead arises because an unintended bridge root can steer traffic into a fragile or suboptimal topology.

D:

This is suited to a different condition, such as when a stack's standby control member cannot take over after a failover drill because the new member has incompatible firmware. The reported fault instead arises because an unintended bridge root can steer traffic into a fragile or suboptimal topology.

Question 40

A stack's standby control member cannot take over after a failover drill because the new member has incompatible firmware. Which immediate engineering change most directly addresses this issue?

  1. Close the designed resilient stacking topology or add the supported alternate intermember link.
  2. Align software versions through the vendor-supported stack upgrade and member compatibility process.
  3. Move keepalive onto a supported independent routed path or management VRF.
  4. Configure supported environmental telemetry for redundant power modules and test notification delivery.

Explanation

Correct Answer

B:

The underlying issue is that control-member version mismatch prevents stable participation in the intended logical stack. This intervention addresses that cause directly. A useful result to confirm is: all members join the stack and leadership failover completes without losing the remaining access members.

Incorrect Answers

A:

This is suited to a different condition, such as when a VSF stack has members connected in a line, so one intermember cable failure isolates the last unit. The reported fault instead arises because control-member version mismatch prevents stable participation in the intended logical stack.

C:

This is suited to a different condition, such as when a VSX deployment uses a keepalive route through the same physical links as its inter-switch link. The reported fault instead arises because control-member version mismatch prevents stable participation in the intended logical stack.

D:

This is suited to a different condition, such as when a core switch keeps forwarding after a power supply is removed, but a maintenance exercise shows no power fault alarm reaches operations. The reported fault instead arises because control-member version mismatch prevents stable participation in the intended logical stack.