HP HPE7-A01 Practice Test 16

Question 150

During campus implementation, a newly configured ACL blocks legitimate application traffic. What should the engineer configure or correct?

Trace DHCP and assigned VLAN before RF optimization.
Scope by device, SSID, VLAN and location before changing global policy.
Find the exact matching ACE and its direction before broad changes.
Correlate roam events, authentication timing and application jitter.

Explanation

Correct Answer

ACL ordering and attachment point determine real packet authorization. The engineer should find the exact matching ACE and its direction before broad changes.

Incorrect Answers

Association and authentication are separate from address assignment. It is not a direct remedy for the condition described.

Fault isolation starts by defining the smallest affected domain. It is not a direct remedy for the condition described.

Fast RF association and data-plane continuity are different measures. It is not a direct remedy for the condition described.

Question 151

The engineer reports completing this change: Match the AP power requirement with a supported 802.3af/at/bt PoE budget. Which verification should be included in the handover?

Capture frames or inspect trunk membership to verify the expected VLAN IDs.
Trace the access VLAN, uplink tags and DHCP offer on the affected port.
Use a site survey to compare co-channel overlap and airtime busy percentages.
Check negotiated PoE class, switch power budget and AP power-status messages.

Explanation

Correct Answer

PoE classes and available per-port power affect whether an AP can enable full capability. Check negotiated PoE class, switch power budget and AP power-status messages directly tests the desired behavior.

Incorrect Answers

VLAN tags identify individual logical Layer 2 networks on a shared trunk. That observation tests a different condition, not the required result.

VLAN assignment determines the broadcast domain in which the DHCP exchange occurs. That observation tests a different condition, not the required result.

Same-channel cells share contention opportunities even when SSIDs are identical. That observation tests a different condition, not the required result.

Question 152

Following a campus change for this issue—a monitoring system only needs periodic traffic samples rather than complete packets—which result most directly verifies that the remedy works?

Issue a read-only request with a scoped credential and inspect response.
Restore in a test environment and compare intended interfaces/policies.
Compare sampled flow exports with port utilization counters.
Produce a test change and verify it appears in the audit history.

Explanation

Correct Answer

sFlow samples packets and interface counters for flow visibility. Compare sampled flow exports with port utilization counters directly tests the desired behavior.

Incorrect Answers

APIs allow programmatic access while permissions control scope. That observation tests a different condition, not the required result.

Recovery requires a known-good configuration and compatible restore method. That observation tests a different condition, not the required result.

Logs and configuration diffs help identify who changed what and when. That observation tests a different condition, not the required result.

Question 153

A technician has applied this fix: Choose the intended preferred route distance for failover policy. Which observation would provide the strongest acceptance evidence?

Shut the primary path in a lab and inspect the installed alternate.
Inspect OSPF neighbor state and matching hello exchanges.
Compare advertised prefixes and connected reachability after aggregation.
Verify no user-port hellos and continued prefix advertisement.

Explanation

Correct Answer

Lower administrative distance normally wins among comparable route sources. Shut the primary path in a lab and inspect the installed alternate directly tests the desired behavior.

Incorrect Answers

OSPF peers require compatible interface participation and topology. That observation tests a different condition, not the required result.

Summarization reduces route entries and update churn where topology permits. That observation tests a different condition, not the required result.

Passive OSPF suppresses adjacency exchange on the selected interface. That observation tests a different condition, not the required result.

Question 154

For an HPE Aruba Networking campus deployment, a host needs to receive traffic on an isolated private VLAN. Which action best addresses it?

Trace trust boundaries and DSCP-to-queue mappings.
Validate primary/secondary VLAN associations and port roles where supported.
Place tenant interfaces and routing tables in separate VRFs.
Scope IGMP snooping and VLAN trunk membership correctly.

Explanation

Correct Answer

Private VLAN constructs isolate hosts within a shared IP subnet. The engineer should validate primary/secondary VLAN associations and port roles where supported.

Incorrect Answers

Marking must remain trusted through every intended QoS enforcement point. It is not a direct remedy for the condition described.

VRFs provide separate Layer 3 routing contexts on one system. It is not a direct remedy for the condition described.

Multicast membership and Layer 2 membership are both VLAN-specific. It is not a direct remedy for the condition described.

Question 155

A technician has applied this fix: Apply inbound prefix-lists or route-maps with explicit allow policy. Which observation would provide the strongest acceptance evidence?

Inspect path attributes and selected best path for one prefix.
Check inbound versus advertised route attributes after attachment.
Send allowed and denied test prefixes and inspect Adj-RIB-In.
Capture relay source and server replies for the client VLAN.

Explanation

Correct Answer

Inbound filtering controls which neighbor routes are accepted. Send allowed and denied test prefixes and inspect Adj-RIB-In directly tests the desired behavior.

Incorrect Answers

BGP attributes determine preference beyond ordinary hop count. That observation tests a different condition, not the required result.

Import and export policy have different control-plane effects. That observation tests a different condition, not the required result.

DHCP broadcasts require relay when the server is beyond a router. That observation tests a different condition, not the required result.

Question 156

After completing the planned work for this situation—clients associate to the WLAN but receive no IPv4 address—how should success be checked?

Capture TCP SYN and BGP OPEN exchanges.
Align interface-event and client-failure timestamps.
Capture DHCP DORA and inspect client VLAN.
Capture affected VLAN tags at both ends.

Explanation

Correct Answer

Association and authentication are separate from address assignment. Capture DHCP DORA and inspect client VLAN directly tests the desired behavior.

Incorrect Answers

IP reachability alone does not establish BGP session negotiation. That observation tests a different condition, not the required result.

End-state snapshots may miss transient faults. 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.

Question 157

During campus implementation, a BGP speaker receives unauthorized customer prefixes. What should the engineer configure or correct?

Compare local preference, AS path and other best-path criteria.
Apply route policy to the correct BGP neighbor and direction.
Configure DHCP relay/helper on the appropriate routed interface.
Apply inbound prefix-lists or route-maps with explicit allow policy.

Explanation

Correct Answer

Inbound filtering controls which neighbor routes are accepted. The engineer should apply inbound prefix-lists or route-maps with explicit allow policy.

Incorrect Answers

BGP attributes determine preference beyond ordinary hop count. It is not a direct remedy for the condition described.

Import and export policy have different control-plane effects. It is not a direct remedy for the condition described.

DHCP broadcasts require relay when the server is beyond a router. It is not a direct remedy for the condition described.

Question 158

After completing the planned work for this situation—a staff endpoint receives an IP address from the wrong department subnet—how should success be checked?

Compare observed beacon intervals and channel airtime usage.
Capture the association exchange and confirm the client reaches associated state.
Trace the access VLAN, uplink tags and DHCP offer on the affected port.
Inspect interface duplex and error counters while loading the link.

Explanation

Correct Answer

VLAN assignment determines the broadcast domain in which the DHCP exchange occurs. Trace the access VLAN, uplink tags and DHCP offer on the affected port directly tests the desired behavior.

Incorrect Answers

Beacons and management frames consume radio airtime independently of application payload. That observation tests a different condition, not the required result.

Wi-Fi management frames establish the radio connection before IP-layer onboarding. That observation tests a different condition, not the required result.

Modern switched full-duplex Ethernet does not use half-duplex collision detection. That observation tests a different condition, not the required result.

Question 159

After completing the planned work for this situation—an access VLAN should have one consistent default-gateway identity across a VSX pair—how should success be checked?

Observe one logical LACP neighbor bundle spanning both paths.
Reboot a test conductor and observe conductor election and management access.
Query ARP for the gateway through each peer during a link-failure pilot.
Verify VLAN-to-instance mappings and active roots.

Explanation

Correct Answer

VSX active gateway provides a shared first-hop identity on appropriate SVIs. Query ARP for the gateway through each peer during a link-failure pilot directly tests the desired behavior.

Incorrect Answers

Multichassis aggregation depends on coordinated LAG identity at the peer pair. That observation tests a different condition, not the required result.

Stack control-plane failover is distinct from individual data-link forwarding. That observation tests a different condition, not the required result.

MSTP can provide separate spanning-tree topologies for groups of VLANs. That observation tests a different condition, not the required result.

Question 160

The campus team is closing a service ticket about this condition: One workstation fails 802.1X while others pass on the same switch. Which validation step is most relevant?

Revert one safe test change and verify incident symptoms.
Test the affected user certificate against a known-good endpoint.
Align interface-event and client-failure timestamps.
Capture affected VLAN tags at both ends.

Explanation

Correct Answer

Per-endpoint authentication problems are not necessarily switch-wide faults. Test the affected user certificate against a known-good endpoint directly tests the desired behavior.

Incorrect Answers

Change correlation narrows likely causes without assuming every recent edit is wrong. That observation tests a different condition, not the required result.

End-state snapshots may miss transient faults. 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.

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Pass Your HP HPE7-A01 Exam Easy!

Question 150

Explanation

Correct Answer

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Question 151

Explanation

Correct Answer

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Question 152

Explanation

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Question 153

Explanation

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Question 154

Explanation

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Question 155

Explanation

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Question 156

Explanation

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Question 157

Explanation

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Question 158

Explanation

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Question 159

Explanation

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Question 160

Explanation

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