HP HPE7-A01 Practice Test 4

Question 30

A network team reports the following condition: Two redundant distribution switches map VLANs to different MSTP instance IDs. Select the most appropriate response.

Find the source of MAC flapping or a Layer 2 loop.
Enable supported dynamic ARP inspection using valid bindings.
Inspect LLDP-MED voice policy and endpoint support.
Match region name, revision and VLAN-instance mappings.

Explanation

Correct Answer

MSTP region agreement is required for consistent internal topology calculation. The engineer should match region name, revision and VLAN-instance mappings.

Incorrect Answers

Rapid MAC moves may indicate a loop, duplicated host or roaming bridge. It is not a direct remedy for the condition described.

Dynamic ARP inspection can reject ARP packets inconsistent with trusted bindings. It is not a direct remedy for the condition described.

LLDP-MED can communicate voice VLAN and QoS settings to phones. It is not a direct remedy for the condition described.

Question 31

The engineer reports completing this change: Investigate egress congestion and queue utilization. Which verification should be included in the handover?

Inspect topology-change counters and identify the blocking port.
Generate mixed voice/data loads and inspect queue-specific drops.
Compare egress queue drops and utilization during a load test.
Check both peers' negotiated duplex and error counters.

Explanation

Correct Answer

Output drops can arise from queue pressure even without physical corruption. Compare egress queue drops and utilization during a load test directly tests the desired behavior.

Incorrect Answers

Redundant physical links must not create an uncontrolled bridging loop. That observation tests a different condition, not the required result.

QoS classification and queue maps control congestion behavior. That observation tests a different condition, not the required result.

Duplex mismatch can create collisions and poor performance. That observation tests a different condition, not the required result.

Question 32

During campus implementation, an administrator claims Wi-Fi 6 MU-MIMO guarantees simultaneous service to every client. What should the engineer configure or correct?

Review preferred scanning channel and discovery configuration.
Check WLAN group/AP assignment and radio/SSID enablement.
Consider supported Target Wake Time operation for capable clients.
Check client and AP capability and actual MU transmission support.

Explanation

Correct Answer

MU-MIMO performance depends on device capabilities and RF conditions. The engineer should check client and AP capability and actual MU transmission support.

Incorrect Answers

6 GHz discovery procedures differ from legacy 2.4/5 GHz behavior. It is not a direct remedy for the condition described.

Defining an SSID centrally does not prove each AP advertises it. It is not a direct remedy for the condition described.

TWT coordinates scheduled wake/sleep periods to reduce contention and energy use. It is not a direct remedy for the condition described.

Question 33

Following a campus change for this issue—a reported campus outage affects one department but not adjacent offices—which result most directly verifies that the remedy works?

Compare an affected and unaffected endpoint on the same path.
Inspect AP power limitations and switch allocated wattage.
Capture affected VLAN tags at both ends.
Compare RADIUS/supplicant TLS errors for failing clients.

Explanation

Correct Answer

Fault isolation starts by defining the smallest affected domain. Compare an affected and unaffected endpoint on the same path directly tests the desired behavior.

Incorrect Answers

Insufficient PoE can cause reduced AP functionality while link remains up. That observation tests a different condition, not the required result.

A trunk can pass some VLANs while filtering another. That observation tests a different condition, not the required result.

Certificate validation occurs after the client discovers the SSID. That observation tests a different condition, not the required result.

Question 34

The campus team is closing a service ticket about this condition: An 802.11ax deployment has many neighboring same-channel BSS cells. Which validation step is most relevant?

Validate SAE association and management protection in a capture.
Compare BSS color assignments and airtime/retry behavior across cells.
Correlate radar event logs with AP channel changes and reconnect times.
Compare client VLAN assignment, DHCP server and trunk membership.

Explanation

Correct Answer

BSS coloring can help distinguish overlapping transmissions under supported spatial reuse. Compare BSS color assignments and airtime/retry behavior across cells directly tests the desired behavior.

Incorrect Answers

SAE provides password-based authenticated key exchange without legacy WPA2-PSK semantics. That observation tests a different condition, not the required result.

DFS regulations require compliant devices to vacate channels after radar detection. That observation tests a different condition, not the required result.

Client IP assignment follows the effective user VLAN and DHCP scope. That observation tests a different condition, not the required result.

Question 35

A network team reports the following condition: An 802.11ax WLAN has no OFDMA benefits on older Wi-Fi 5 clients. Select the most appropriate response.

Review band steering and client preference while preserving compatibility.
Differentiate same-channel contention from adjacent-channel interference.
Reassign nonoverlapping channels using a surveyed reuse plan.
Check client capabilities before expecting 802.11ax-specific features.

Explanation

Correct Answer

Legacy clients cannot use HE-only scheduling features. The engineer should check client capabilities before expecting 802.11ax-specific features.

Incorrect Answers

Steering affects association choices but cannot guarantee every client switches bands. It is not a direct remedy for the condition described.

CCI shares airtime while ACI disrupts reception through overlapping energy. It is not a direct remedy for the condition described.

Overlapping 2.4 GHz cells contend and interfere on shared channels. It is not a direct remedy for the condition described.

Question 36

The campus team is closing a service ticket about this condition: An AP's automated RF power is too high in an open office. Which validation step is most relevant?

Compare uplink and downlink RSSI at edge locations.
Measure coverage overlap and retries across the floor.
Compare IP-literal connectivity with hostname resolution.
Capture BSS transition requests and the client response.

Explanation

Correct Answer

Excess transmit power can enlarge contention cells and delay roaming. Measure coverage overlap and retries across the floor directly tests the desired behavior.

Incorrect Answers

Downlink coverage does not ensure the return path from low-power clients. That observation tests a different condition, not the required result.

DNS failure can appear as WLAN failure despite correct radio and IP connectivity. That observation tests a different condition, not the required result.

802.11v can suggest a better BSS, but the client decides whether to comply. That observation tests a different condition, not the required result.

Question 37

The engineer reports completing this change: Trace EAPOL between client and switch and RADIUS between switch and server. Which verification should be included in the handover?

Capture NS, NA and RA messages and correlate the learned IPv6 neighbor table.
Capture both EAPOL and RADIUS traffic on the appropriate interfaces.
Check negotiated PoE class, switch power budget and AP power-status messages.
Connect an unapproved and an approved endpoint and compare port-access sessions.

Explanation

Correct Answer

EAPOL is used at the endpoint edge while the authenticator relays authentication over RADIUS. Capture both EAPOL and RADIUS traffic on the appropriate interfaces directly tests the desired behavior.

Incorrect Answers

IPv6 uses ICMPv6 Neighbor Discovery for neighbor and router discovery. That observation tests a different condition, not the required result.

PoE classes and available per-port power affect whether an AP can enable full capability. That observation tests a different condition, not the required result.

802.1X controls port authorization before granting authenticated network access. That observation tests a different condition, not the required result.

Question 38

After completing the planned work for this situation—a user-facing port should transition quickly without creating an upstream loop—how should success be checked?

Verify root bridge ID and root port selections across the VLAN instances.
Verify edge state and response when a BPDU is received.
Compare trusted and untrusted DHCPv6 advertisements in a test VLAN.
Compare ingress broadcast rate before and after a controlled storm fixture.

Explanation

Correct Answer

Edge semantics reduce startup delay but should not blindly trust bridge devices. Verify edge state and response when a BPDU is received directly tests the desired behavior.

Incorrect Answers

Spanning-tree root selection must reflect the planned campus topology. That observation tests a different condition, not the required result.

DHCPv6 protection prevents unapproved address services from client ports. That observation tests a different condition, not the required result.

Storm control limits excess broadcast or multicast traffic while loops are fixed. That observation tests a different condition, not the required result.

Question 39

A new campus access switch reaches the management VLAN but has not appeared in Aruba Central. Which change most directly meets this campus requirement?

Check device inventory, subscription assignment and outbound management reachability.
Enable suitable LLDP-MED advertisements and examine neighbor capabilities.
Check optic type, fiber polarity, speed support and receive power.
Confirm the AP VLAN reaches a DHCP server or relay.

Explanation

Correct Answer

Cloud onboarding requires identity, entitlement and network communication, not only an IP address. The engineer should check device inventory, subscription assignment and outbound management reachability.

Incorrect Answers

LLDP-MED exchanges device and voice-network capability information. It is not a direct remedy for the condition described.

Physical link-up requires matching media and supported transceiver properties. It is not a direct remedy for the condition described.

Power-up and Layer 2 association alone do not ensure IP address assignment. It is not a direct remedy for the condition described.

Question 40

For an HPE Aruba Networking campus deployment, an AP uses a tagged management VLAN but the switch sends it untagged. Which action best addresses it?

Prestage device identity, inventory, group and required bootstrap network details.
Configure reachable DNS resolvers with the required records.
Check optic type, fiber polarity, speed support and receive power.
Make the AP uplink native/tagged VLAN expectation match the switch port.

Explanation

Correct Answer

AP management requires consistent tagged versus untagged treatment. The engineer should make the AP uplink native/tagged VLAN expectation match the switch port.

Incorrect Answers

Preprovisioning moves repeatable configuration into central management. It is not a direct remedy for the condition described.

Control-plane enrollment can fail when hostnames cannot resolve correctly. It is not a direct remedy for the condition described.

Physical link-up requires matching media and supported transceiver properties. It is not a direct remedy for the condition described.

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Question 30

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Question 31

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Question 32

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Question 33

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Question 34

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Question 35

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Question 36

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Question 37

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Question 38

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Question 39

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Question 40

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HPE Network Campus Access Professional (HPE7-A01) Practice Tests