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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 46

Question 450

An access network requires prevention of forged source-IP traffic from endpoints with stolen static addresses. Which result would best establish that the correction succeeded?

  1. The phone and permitted PC both connect while additional unauthorized devices are rejected.
  2. Packets with valid bindings pass and forged source IPs from user ports are blocked.
  3. Traffic follows the moved server's new port and no stale static entry remains.
  4. The approved discovery application works through the relay while unrelated broadcasts remain separated.

Explanation

Correct Answer

B:

This is an operational test of the required outcome rather than merely proof a setting exists. It checks that mAC-to-IP-to-port ownership is not enforced by ordinary VLAN isolation no longer prevents the service.

Incorrect Answers

A:

This result may validate another network change, but it does not demonstrate recovery from the fault here: mAC-to-IP-to-port ownership is not enforced by ordinary VLAN isolation.

C:

That explanation does not distinguish this option. “Traffic follows the moved server's new port and no stale static entry remains” is an alternative action, but it does not by itself establish the outcome required in this case.

D:

That explanation does not distinguish this option. “The approved discovery application works through the relay while unrelated broadcasts remain separated” is an alternative action, but it does not by itself establish the outcome required in this case.

Question 451

An edge port has port-security configured for one device and a desk phone with a downstream PC is unexpectedly blocked. Which result would best establish that the correction succeeded?

  1. The phone and permitted PC both connect while additional unauthorized devices are rejected.
  2. SNMPv3 exchanges reach the collector over IPv6 with expected credentials and source.
  3. End-to-end test packets of the approved size pass without fragmentation or blackholing.
  4. The printer obtains an address in the approved subnet and communicates via its intended SVI.

Explanation

Correct Answer

A:

This is an operational test of the required outcome rather than merely proof a setting exists. It checks that the configured client limit is narrower than the legitimate topology behind that port no longer prevents the service.

Incorrect Answers

B:

This result may validate another network change, but it does not demonstrate recovery from the fault here: the configured client limit is narrower than the legitimate topology behind that port.

C:

That explanation does not distinguish this option. “End-to-end test packets of the approved size pass without fragmentation or blackholing” is an alternative action, but it does not by itself establish the outcome required in this case.

D:

That explanation does not distinguish this option. “The printer obtains an address in the approved subnet and communicates via its intended SVI” is an alternative action, but it does not by itself establish the outcome required in this case.

Question 452

A multicast video stream floods every port in a VLAN after an IGMP snooping feature is disabled. Which result would best establish that the correction succeeded?

  1. Only authorized DHCP offers reach clients on the protected VLAN.
  2. Packets with valid bindings pass and forged source IPs from user ports are blocked.
  3. The hypervisor communicates on all approved tenant VLANs without leaking others.
  4. The stream is delivered to subscribed receivers while uninterested ports show no unwanted multicast load.

Explanation

Correct Answer

D:

This is an operational test of the required outcome rather than merely proof a setting exists. It checks that without membership-based snooping, multicast may be flooded like unknown traffic no longer prevents the service.

Incorrect Answers

A:

This result may validate another network change, but it does not demonstrate recovery from the fault here: without membership-based snooping, multicast may be flooded like unknown traffic.

B:

That explanation does not distinguish this option. “Packets with valid bindings pass and forged source IPs from user ports are blocked” is an alternative action, but it does not by itself establish the outcome required in this case.

C:

That explanation does not distinguish this option. “The hypervisor communicates on all approved tenant VLANs without leaking others” is an alternative action, but it does not by itself establish the outcome required in this case.

Question 453

A newly enabled MSTP configuration blocks the wrong uplink because two switches assign VLANs to inconsistent instances. Which result would best establish that the correction succeeded?

  1. Hosts resolve one intended gateway identity and maintain stable forwarding.
  2. Frame integrity counters remain clean under the expected utilization level.
  3. The correct instance root and forwarding topology appear for each mapped VLAN.
  4. Clients acquire correct leases through the approved relay path.

Explanation

Correct Answer

C:

This is an operational test of the required outcome rather than merely proof a setting exists. It checks that mismatched MST region parameters prevent consistent intended spanning-tree instance behavior no longer prevents the service.

Incorrect Answers

A:

This result may validate another network change, but it does not demonstrate recovery from the fault here: mismatched MST region parameters prevent consistent intended spanning-tree instance behavior.

B:

That explanation does not distinguish this option. “Frame integrity counters remain clean under the expected utilization level” is an alternative action, but it does not by itself establish the outcome required in this case.

D:

That explanation does not distinguish this option. “Clients acquire correct leases through the approved relay path” is an alternative action, but it does not by itself establish the outcome required in this case.

Question 454

A campus administrator disables STP globally to reduce convergence time, and a redundant link introduces a broadcast storm. Which result would best establish that the correction succeeded?

  1. The approved discovery application works through the relay while unrelated broadcasts remain separated.
  2. Traffic follows the moved server's new port and no stale static entry remains.
  3. DHCP broadcasts remain within the intended VLAN and the link's tag behavior is symmetric.
  4. Redundant links operate without broadcast storms and failover matches the design.

Explanation

Correct Answer

D:

This is an operational test of the required outcome rather than merely proof a setting exists. It checks that a Layer 2 network with parallel paths and no loop avoidance can replicate frames indefinitely no longer prevents the service.

Incorrect Answers

A:

This result may validate another network change, but it does not demonstrate recovery from the fault here: a Layer 2 network with parallel paths and no loop avoidance can replicate frames indefinitely.

B:

That explanation does not distinguish this option. “Traffic follows the moved server's new port and no stale static entry remains” is an alternative action, but it does not by itself establish the outcome required in this case.

C:

That explanation does not distinguish this option. “DHCP broadcasts remain within the intended VLAN and the link's tag behavior is symmetric” is an alternative action, but it does not by itself establish the outcome required in this case.

Question 455

A service requires large Ethernet payloads, but a path across several CX switches drops only oversized frames. Which result would best establish that the correction succeeded?

  1. End-to-end test packets of the approved size pass without fragmentation or blackholing.
  2. The stream is delivered to subscribed receivers while uninterested ports show no unwanted multicast load.
  3. Known destinations are learned and normal unicast forwarding uses expected egress ports.
  4. The same permitted VLAN set reaches the downstream device via either peer.

Explanation

Correct Answer

A:

This is an operational test of the required outcome rather than merely proof a setting exists. It checks that an intermediate link has a smaller MTU than the application's required packet size no longer prevents the service.

Incorrect Answers

B:

This result may validate another network change, but it does not demonstrate recovery from the fault here: an intermediate link has a smaller MTU than the application's required packet size.

C:

That explanation does not distinguish this option. “Known destinations are learned and normal unicast forwarding uses expected egress ports” is an alternative action, but it does not by itself establish the outcome required in this case.

D:

That explanation does not distinguish this option. “The same permitted VLAN set reaches the downstream device via either peer” is an alternative action, but it does not by itself establish the outcome required in this case.

Question 456

A switch port connected to a hypervisor must carry three isolated tenant VLANs, but it is left in access mode. Which result would best establish that the correction succeeded?

  1. Only authorized DHCP offers reach clients on the protected VLAN.
  2. The same permitted VLAN set reaches the downstream device via either peer.
  3. The hypervisor communicates on all approved tenant VLANs without leaking others.
  4. Packets with valid bindings pass and forged source IPs from user ports are blocked.

Explanation

Correct Answer

C:

This is an operational test of the required outcome rather than merely proof a setting exists. It checks that access mode sends traffic for one untagged VLAN instead of carrying multiple tagged networks no longer prevents the service.

Incorrect Answers

A:

This result may validate another network change, but it does not demonstrate recovery from the fault here: access mode sends traffic for one untagged VLAN instead of carrying multiple tagged networks.

B:

That explanation does not distinguish this option. “The same permitted VLAN set reaches the downstream device via either peer” is an alternative action, but it does not by itself establish the outcome required in this case.

D:

That explanation does not distinguish this option. “Packets with valid bindings pass and forged source IPs from user ports are blocked” is an alternative action, but it does not by itself establish the outcome required in this case.

Question 457

A campus uses static MAC entries for critical systems, but after an authorized server relocation traffic still forwards to the old port. Which result would best establish that the correction succeeded?

  1. Traffic follows the moved server's new port and no stale static entry remains.
  2. All members show compatible LACP state and the server maintains connectivity during a member failure.
  3. The two groups access allowed services but cannot reach prohibited peers.
  4. Hosts resolve one intended gateway identity and maintain stable forwarding.

Explanation

Correct Answer

A:

This is an operational test of the required outcome rather than merely proof a setting exists. It checks that a static MAC location can override learning even after the host changes location no longer prevents the service.

Incorrect Answers

B:

This result may validate another network change, but it does not demonstrate recovery from the fault here: a static MAC location can override learning even after the host changes location.

C:

That explanation does not distinguish this option. “The two groups access allowed services but cannot reach prohibited peers” is an alternative action, but it does not by itself establish the outcome required in this case.

D:

That explanation does not distinguish this option. “Hosts resolve one intended gateway identity and maintain stable forwarding” is an alternative action, but it does not by itself establish the outcome required in this case.

Question 458

A new Layer 3 switch hosts the user VLAN gateway but the SVI mask excludes part of the expected address range. Which result would best establish that the correction succeeded?

  1. The two groups access allowed services but cannot reach prohibited peers.
  2. Hosts resolve one intended gateway identity and maintain stable forwarding.
  3. Every host in the defined subnet can reach the correct local gateway and route to approved peers.
  4. End-to-end test packets of the approved size pass without fragmentation or blackholing.

Explanation

Correct Answer

C:

This is an operational test of the required outcome rather than merely proof a setting exists. It checks that the incorrect subnet boundary makes some intended local hosts appear remote or unreachable no longer prevents the service.

Incorrect Answers

A:

This result may validate another network change, but it does not demonstrate recovery from the fault here: the incorrect subnet boundary makes some intended local hosts appear remote or unreachable.

B:

That explanation does not distinguish this option. “Hosts resolve one intended gateway identity and maintain stable forwarding” is an alternative action, but it does not by itself establish the outcome required in this case.

D:

That explanation does not distinguish this option. “End-to-end test packets of the approved size pass without fragmentation or blackholing” is an alternative action, but it does not by itself establish the outcome required in this case.

Question 459

A campus needs to reduce ARP spoofing from open lab ports, yet engineers plan to permit all ARP replies. Which result would best establish that the correction succeeded?

  1. Guest association still works but unapproved VLAN tags do not traverse the AP uplink.
  2. Legitimate ARP exchanges succeed while forged gateway claims are rejected.
  3. The stream is delivered to subscribed receivers while uninterested ports show no unwanted multicast load.
  4. The same permitted VLAN set reaches the downstream device via either peer.

Explanation

Correct Answer

B:

This is an operational test of the required outcome rather than merely proof a setting exists. It checks that unvalidated ARP claims can redirect traffic by associating gateway IPs with attacker MACs no longer prevents the service.

Incorrect Answers

A:

This result may validate another network change, but it does not demonstrate recovery from the fault here: unvalidated ARP claims can redirect traffic by associating gateway IPs with attacker MACs.

C:

That explanation does not distinguish this option. “The stream is delivered to subscribed receivers while uninterested ports show no unwanted multicast load” is an alternative action, but it does not by itself establish the outcome required in this case.

D:

That explanation does not distinguish this option. “The same permitted VLAN set reaches the downstream device via either peer” is an alternative action, but it does not by itself establish the outcome required in this case.

Question 460

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 result would best establish that the correction succeeded?

  1. Clients acquire correct leases through the approved relay path.
  2. Every host in the defined subnet can reach the correct local gateway and route to approved peers.
  3. The stream is delivered to subscribed receivers while uninterested ports show no unwanted multicast load.
  4. The blocked same-VLAN flow fails while explicitly permitted traffic continues.

Explanation

Correct Answer

D:

This is an operational test of the required outcome rather than merely proof a setting exists. It checks that an L3 SVI ACL may not inspect traffic that never traverses that routed interface no longer prevents the service.

Incorrect Answers

A:

This result may validate another network change, but it does not demonstrate recovery from the fault here: an L3 SVI ACL may not inspect traffic that never traverses that routed interface.

B:

That explanation does not distinguish this option. “Every host in the defined subnet can reach the correct local gateway and route to approved peers” is an alternative action, but it does not by itself establish the outcome required in this case.

C:

That explanation does not distinguish this option. “The stream is delivered to subscribed receivers while uninterested ports show no unwanted multicast load” is an alternative action, but it does not by itself establish the outcome required in this case.