HP HPE7-A01 Practice Test 18

Question 170

An engineer is planning corrective work because a router has OSPF area 0 on one uplink and area 20 on another. Which step should be prioritized?

Apply redistribution with explicit route maps or permitted prefixes.
Deploy suitable route reflectors and client relationships.
Use supported NSSA external route handling instead of ordinary stub settings.
Ensure area border routing is planned and configured correctly.

Explanation

Correct Answer

An ABR connects area 0 with additional OSPF areas. The engineer should ensure area border routing is planned and configured correctly.

Incorrect Answers

Unfiltered redistribution can advertise unintended internal routes. It is not a direct remedy for the condition described.

Route reflection reduces the iBGP full-mesh requirement. It is not a direct remedy for the condition described.

NSSA permits controlled local external redistribution in a stub-like area. It is not a direct remedy for the condition described.

Question 171

An engineer is planning corrective work because a WLAN must protect against spoofed deauthentication frames. Which step should be prioritized?

Enable protected management frames on compatible client SSIDs.
Check EAP server certificate trust and client supplicant validation.
Apply client isolation or appropriate role-based segmentation.
Use a compatible band-steering mode with necessary 2.4 GHz fallback.

Explanation

Correct Answer

PMF protects specific robust management frames from unauthenticated spoofing. The engineer should enable protected management frames on compatible client SSIDs.

Incorrect Answers

Enterprise Wi-Fi authentication depends on valid identity and trusted RADIUS certificates. It is not a direct remedy for the condition described.

Guest devices should not gain unnecessary direct peer reachability. It is not a direct remedy for the condition described.

A forced 5 GHz policy can exclude clients that lack that band. It is not a direct remedy for the condition described.

Question 172

A network team reports the following condition: A route change appears correct in RIB but clients still use an old path. Select the most appropriate response.

Verify OSPF activation, area and Layer 3 adjacency parameters.
Ensure area border routing is planned and configured correctly.
Configure a static route with a reachable next hop in the correct VRF.
Inspect FIB installation and persistent session forwarding state.

Explanation

Correct Answer

Control-plane route updates and existing session datapaths can differ. The engineer should inspect FIB installation and persistent session forwarding state.

Incorrect Answers

OSPF peers require compatible interface participation and topology. It is not a direct remedy for the condition described.

An ABR connects area 0 with additional OSPF areas. It is not a direct remedy for the condition described.

Static forwarding requires the destination prefix and next-hop resolution. It is not a direct remedy for the condition described.

Question 173

During campus implementation, nearby access points on the same WLAN frequently contend for air time. What should the engineer configure or correct?

Investigate errors, drops and congestion rather than expecting Ethernet CSMA/CD collisions.
Account for periodic beacons and other 802.11 management airtime.
Trace EAPOL between client and switch and RADIUS between switch and server.
Revisit 802.11 channel reuse and neighboring co-channel cell placement.

Explanation

Correct Answer

Same-channel cells share contention opportunities even when SSIDs are identical. The engineer should revisit 802.11 channel reuse and neighboring co-channel cell placement.

Incorrect Answers

Modern switched full-duplex Ethernet does not use half-duplex collision detection. It is not a direct remedy for the condition described.

Beacons and management frames consume radio airtime independently of application payload. It is not a direct remedy for the condition described.

EAPOL is used at the endpoint edge while the authenticator relays authentication over RADIUS. It is not a direct remedy for the condition described.

Question 174

Following a campus change for this issue—bGP graceful restart is needed during planned supervisor switchover—which result most directly verifies that the remedy works?

Send traffic to the blackhole prefix and check drop behavior.
Trace multicast routes and receiver memberships.
Test a planned restart and observe stale route lifecycle.
Display both identical routes in distinct VRFs and test isolation.

Explanation

Correct Answer

Graceful restart may preserve forwarding while control-plane updates recover. Test a planned restart and observe stale route lifecycle directly tests the desired behavior.

Incorrect Answers

Null-route forwarding disposes packets without a normal next hop. That observation tests a different condition, not the required result.

Multicast forwarding requires a forwarding tree and interested receivers. That observation tests a different condition, not the required result.

VRFs maintain independent route tables and overlapping address space. That observation tests a different condition, not the required result.

Question 175

A network team reports the following condition: A client supports both 2.4 and 5 GHz but remains on noisy 2.4 GHz. Select the most appropriate response.

Inspect channel airtime usage, co-channel interference and retry rates.
Evaluate BSS coloring together with interference and power policy.
Review band steering and client preference while preserving compatibility.
Check role transition, DNS, gateway and redirect policies.

Explanation

Correct Answer

Steering affects association choices but cannot guarantee every client switches bands. The engineer should review band steering and client preference while preserving compatibility.

Incorrect Answers

Strong signal alone does not guarantee available airtime. It is not a direct remedy for the condition described.

BSS coloring can help distinguish overlapping transmissions under supported spatial reuse. It is not a direct remedy for the condition described.

Portal authentication must result in a usable authorized forwarding role. It is not a direct remedy for the condition described.

Question 176

Following a campus change for this issue—rADIUS requests fail during a temporary WAN outage—which result most directly verifies that the remedy works?

Inspect identity result, ClearPass enforcement policy and controller role.
Review RADIUS packet outcome and switch auth-session reason.
Disconnect RADIUS and inspect critical-role policy.
Capture EAPOL-Request and absence/presence of EAPOL-Response.

Explanation

Correct Answer

A RADIUS outage should not imply blanket production access. Disconnect RADIUS and inspect critical-role policy directly tests the desired behavior.

Incorrect Answers

A successful identity check does not automatically grant every role. That observation tests a different condition, not the required result.

Server reachability and credential validation produce different failure evidence. That observation tests a different condition, not the required result.

EAPOL exchange requires the endpoint to participate in authentication. That observation tests a different condition, not the required result.

Question 177

The engineer reports completing this change: Configure appropriate IPv6 RA behavior on the routed SVI. Which verification should be included in the handover?

Shut the primary path in a lab and inspect the installed alternate.
Inspect RIB/FIB and reason for next-hop exclusion.
Capture RA and check host IPv6 route/address state.
Trace a matching and nonmatching flow and compare egress.

Explanation

Correct Answer

Router advertisements communicate default-router and prefix information. Capture RA and check host IPv6 route/address state directly tests the desired behavior.

Incorrect Answers

Lower administrative distance normally wins among comparable route sources. That observation tests a different condition, not the required result.

Multiple configured next hops do not guarantee equal-cost installation. That observation tests a different condition, not the required result.

PBR can select forwarding based on match criteria beyond destination route. That observation tests a different condition, not the required result.

Question 178

A network team reports the following condition: A roaming design needs to discover neighbor APs efficiently. Select the most appropriate response.

Investigate airtime fairness and legacy data-rate impact.
Use an appropriate 802.11k neighbor report policy.
Rebalance clients across eligible APs and assess airtime fairness.
Check client capabilities before expecting 802.11ax-specific features.

Explanation

Correct Answer

Neighbor reports can reduce the amount of blind scanning needed. The engineer should use an appropriate 802.11k neighbor report policy.

Incorrect Answers

A slow client can occupy much airtime for comparatively few bytes. It is not a direct remedy for the condition described.

Capacity is constrained by shared airtime, not simply signal strength. It is not a direct remedy for the condition described.

Legacy clients cannot use HE-only scheduling features. It is not a direct remedy for the condition described.

Question 179

After completing the planned work for this situation—a campus host is redirected by an ARP spoofing attempt—how should success be checked?

Observe secure-channel negotiation and protected frame counters.
Test permitted secure access and rejected plaintext or unauthorized access.
Trigger an authorized posture change and observe new role permissions.
Send a forged test ARP and inspect rejection logs.

Explanation

Correct Answer

Dynamic ARP inspection validates address/MAC claims on untrusted ports. Send a forged test ARP and inspect rejection logs directly tests the desired behavior.

Incorrect Answers

MACsec protects selected Ethernet frames at Layer 2. That observation tests a different condition, not the required result.

Secure administration requires both encryption and source restriction. That observation tests a different condition, not the required result.

Dynamic authorization must reflect changing endpoint trust. That observation tests a different condition, not the required result.

Question 180

A new 6 GHz WLAN cannot be seen by older dual-band laptops. Which change most directly meets this campus requirement?

Configure a supported guest captive-portal workflow.
Verify neighbor assistance and actual roam trigger/timing.
Confirm clients support 6 GHz and the selected Wi-Fi 6E/7 security profile.
Use WPA3-SAE with compatible client support.

Explanation

Correct Answer

6 GHz discovery requires compatible client radio and security support. The engineer should confirm clients support 6 GHz and the selected Wi-Fi 6E/7 security profile.

Incorrect Answers

Captive portals add user onboarding beyond basic association. It is not a direct remedy for the condition described.

802.11k/v can aid roaming decisions but client behavior still matters. It is not a direct remedy for the condition described.

SAE provides password-based authenticated key exchange without legacy WPA2-PSK semantics. It is not a direct remedy for the condition described.

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Question 170

Explanation

Correct Answer

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Question 171

Explanation

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Question 172

Explanation

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Question 173

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Question 174

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Question 175

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Question 176

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Question 177

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Question 178

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Question 179

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Question 180

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