HP HPE7-A08 Practice Test 24

Question 230

An implementation change is planned for: Hosts in two routed VLANs cannot communicate even though each VLAN has local connectivity. Which preventive control BEST reduces unnecessary outage and security risk?

Review route-leak requirements with policy owners before changes
Check access policy and bidirectional path before enabling routing
Perform master-down testing after checking gateway MAC behavior
Stage routing peers with a known-good interface and timer baseline

Explanation

Correct Answer

Check access policy and bidirectional path before enabling routing. This safeguard is appropriate before the change to configure the appropriate VLAN SVIs, routed addressing and inter-VLAN routes on the capable switch; it reduces exposure to the mistake of assuming separate VLAN broadcasts can communicate without routing.

Incorrect Answers

This prevention choice fits a different situation: An isolated branch VRF lacks a route to the headquarters application. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to check access policy and bidirectional path before enabling routing.

This prevention choice fits a different situation: Two gateway switches should provide first-hop redundancy for one user VLAN. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to check access policy and bidirectional path before enabling routing.

This prevention choice fits a different situation: Two routing switches have configured OSPF but fail to form an adjacency. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to check access policy and bidirectional path before enabling routing.

Question 231

A first repair attempt for this situation failed: Hosts in two routed VLANs cannot communicate even though each VLAN has local connectivity. The review found the mistaken approach of assuming separate VLAN broadcasts can communicate without routing. Which targeted recovery action BEST restores the intended design?

Restore SVI addressing and route visibility then repeat host tests
Correct the relay destination and interface then renew a test lease
Correct the route within the intended VRF and test permitted paths
Repair underlay or mapping inconsistencies before re-enabling overlay traffic

Explanation

Correct Answer

Restore SVI addressing and route visibility then repeat host tests. This addresses the observed risk rather than hiding its symptoms. Confirm the repair when hosts reach the permitted opposite-subnet gateway and return traffic.

Incorrect Answers

This remediation choice fits a different situation: A client VLAN needs addresses from a DHCP server in another routed subnet. It does not resolve the stated failure mode. For this case, the decisive remediation choice is to restore SVI addressing and route visibility then repeat host tests.

This remediation choice fits a different situation: An isolated branch VRF lacks a route to the headquarters application. It does not resolve the stated failure mode. For this case, the decisive remediation choice is to restore SVI addressing and route visibility then repeat host tests.

This remediation choice fits a different situation: A data center design requires VXLAN connectivity between routed transport endpoints. It does not resolve the stated failure mode. For this case, the decisive remediation choice is to restore SVI addressing and route visibility then repeat host tests.

Question 232

An HPE Aruba Networking engineer faces this wired-network scenario: Two routing switches have configured OSPF but fail to form an adjacency. Which implementation action BEST addresses the requirement?

Configure the appropriate VLAN SVIs, routed addressing and inter-VLAN routes on the capable switch
Match compatible OSPF interfaces, area assignment and authentication settings
Install a supported route or routing protocol in the correct VRF without leaking unauthorized networks
Configure a supported VRRP group with consistent virtual gateway and priorities

Explanation

Correct Answer

OSPF neighbor formation requires consistent area and interface parameters. The targeted implementation is to match compatible OSPF interfaces, area assignment and authentication settings. The deployment succeeds when neighbor state reaches the expected adjacency and required routes appear.

Incorrect Answers

This implementation choice fits a different situation: Hosts in two routed VLANs cannot communicate even though each VLAN has local connectivity. It does not resolve the stated failure mode. For this case, the decisive implementation choice is to match compatible OSPF interfaces, area assignment and authentication settings.

This implementation choice fits a different situation: An isolated branch VRF lacks a route to the headquarters application. It does not resolve the stated failure mode. For this case, the decisive implementation choice is to match compatible OSPF interfaces, area assignment and authentication settings.

This implementation choice fits a different situation: Two gateway switches should provide first-hop redundancy for one user VLAN. It does not resolve the stated failure mode. For this case, the decisive implementation choice is to match compatible OSPF interfaces, area assignment and authentication settings.

Question 233

After implementing the approved change — Match compatible OSPF interfaces, area assignment and authentication settings — for this scenario: Two routing switches have configured OSPF but fail to form an adjacency. Which observed result BEST verifies the outcome?

Hosts reach the permitted opposite-subnet gateway and return traffic
The test overlay forwards intended tenant traffic without unintended leakage
Clients retain virtual-gateway reachability after an approved master failure
Neighbor state reaches the expected adjacency and required routes appear

Explanation

Correct Answer

Neighbor state reaches the expected adjacency and required routes appear. This is the observable acceptance evidence for the decision to match compatible OSPF interfaces, area assignment and authentication settings. It demonstrates the principle that oSPF neighbor formation requires consistent area and interface parameters.

Incorrect Answers

This verification choice fits a different situation: Hosts in two routed VLANs cannot communicate even though each VLAN has local connectivity. It does not resolve the stated failure mode. For this case, the decisive verification choice is to neighbor state reaches the expected adjacency and required routes appear.

This verification choice fits a different situation: A data center design requires VXLAN connectivity between routed transport endpoints. It does not resolve the stated failure mode. For this case, the decisive verification choice is to neighbor state reaches the expected adjacency and required routes appear.

This verification choice fits a different situation: Two gateway switches should provide first-hop redundancy for one user VLAN. It does not resolve the stated failure mode. For this case, the decisive verification choice is to neighbor state reaches the expected adjacency and required routes appear.

Question 234

An HPE Aruba Networking design review examines: Two routing switches have configured OSPF but fail to form an adjacency. Which technical principle BEST explains the required approach?

Route tables and next-hop resolution are scoped by VRF
OSPF neighbor formation requires consistent area and interface parameters
DHCP broadcast discovery does not inherently traverse routers without relay
Layer 3 routing requires valid interfaces and reachable reverse paths

Explanation

Correct Answer

OSPF neighbor formation requires consistent area and interface parameters. The case therefore calls for this specifically controlled action: match compatible OSPF interfaces, area assignment and authentication settings. The acceptance evidence is that neighbor state reaches the expected adjacency and required routes appear.

Incorrect Answers

This principle choice fits a different situation: An isolated branch VRF lacks a route to the headquarters application. It does not resolve the stated failure mode. For this case, the decisive principle choice is to oSPF neighbor formation requires consistent area and interface parameters.

This principle choice fits a different situation: A client VLAN needs addresses from a DHCP server in another routed subnet. It does not resolve the stated failure mode. For this case, the decisive principle choice is to oSPF neighbor formation requires consistent area and interface parameters.

This principle choice fits a different situation: Hosts in two routed VLANs cannot communicate even though each VLAN has local connectivity. It does not resolve the stated failure mode. For this case, the decisive principle choice is to oSPF neighbor formation requires consistent area and interface parameters.

Question 235

A risk review for the following wired-network case asks what should be avoided: Two routing switches have configured OSPF but fail to form an adjacency. Which assumption creates the GREATEST implementation risk?

Giving the peers unrelated virtual IP addresses and expecting automatic failover
Placing a route in the default VRF and assuming all VRFs inherit it
Adding an ordinary static route and expecting it to forward DHCP broadcasts
Assuming equal IP reachability guarantees an OSPF adjacency

Explanation

Correct Answer

Assuming equal IP reachability guarantees an OSPF adjacency. That shortcut fails because oSPF neighbor formation requires consistent area and interface parameters. Instead, the appropriate approach is to match compatible OSPF interfaces, area assignment and authentication settings.

Incorrect Answers

This misconception choice fits a different situation: Two gateway switches should provide first-hop redundancy for one user VLAN. It does not resolve the stated failure mode. For this case, the decisive misconception choice is to assuming equal IP reachability guarantees an OSPF adjacency.

This misconception choice fits a different situation: An isolated branch VRF lacks a route to the headquarters application. It does not resolve the stated failure mode. For this case, the decisive misconception choice is to assuming equal IP reachability guarantees an OSPF adjacency.

This misconception choice fits a different situation: A client VLAN needs addresses from a DHCP server in another routed subnet. It does not resolve the stated failure mode. For this case, the decisive misconception choice is to assuming equal IP reachability guarantees an OSPF adjacency.

Question 236

Before changing switch configuration, an engineer investigates: Two routing switches have configured OSPF but fail to form an adjacency. Which FIRST check is most useful for isolating the cause?

Inspect VRF assignment, lookup table and reachable next hop
Inspect OSPF interface, neighbor, area and authentication diagnostics
Inspect SVI operational state, IP subnets and route lookup
Inspect VRRP state, priorities and client default-gateway settings

Explanation

Correct Answer

Inspect OSPF interface, neighbor, area and authentication diagnostics. This first check isolates the relevant mechanism without an untested configuration change. It tests the rule that oSPF neighbor formation requires consistent area and interface parameters.

Incorrect Answers

This diagnostic choice fits a different situation: An isolated branch VRF lacks a route to the headquarters application. It does not resolve the stated failure mode. For this case, the decisive diagnostic choice is to inspect OSPF interface, neighbor, area and authentication diagnostics.

This diagnostic choice fits a different situation: Hosts in two routed VLANs cannot communicate even though each VLAN has local connectivity. It does not resolve the stated failure mode. For this case, the decisive diagnostic choice is to inspect OSPF interface, neighbor, area and authentication diagnostics.

This diagnostic choice fits a different situation: Two gateway switches should provide first-hop redundancy for one user VLAN. It does not resolve the stated failure mode. For this case, the decisive diagnostic choice is to inspect OSPF interface, neighbor, area and authentication diagnostics.

Question 237

An implementation change is planned for: Two routing switches have configured OSPF but fail to form an adjacency. Which preventive control BEST reduces unnecessary outage and security risk?

Verify relay paths and authorized servers during site acceptance
Check access policy and bidirectional path before enabling routing
Document supported model, software and route-target expectations
Stage routing peers with a known-good interface and timer baseline

Explanation

Correct Answer

Stage routing peers with a known-good interface and timer baseline. This safeguard is appropriate before the change to match compatible OSPF interfaces, area assignment and authentication settings; it reduces exposure to the mistake of assuming equal IP reachability guarantees an OSPF adjacency.

Incorrect Answers

This prevention choice fits a different situation: A client VLAN needs addresses from a DHCP server in another routed subnet. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to stage routing peers with a known-good interface and timer baseline.

This prevention choice fits a different situation: Hosts in two routed VLANs cannot communicate even though each VLAN has local connectivity. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to stage routing peers with a known-good interface and timer baseline.

This prevention choice fits a different situation: A data center design requires VXLAN connectivity between routed transport endpoints. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to stage routing peers with a known-good interface and timer baseline.

Question 238

A first repair attempt for this situation failed: Two routing switches have configured OSPF but fail to form an adjacency. The review found the mistaken approach of assuming equal IP reachability guarantees an OSPF adjacency. Which targeted recovery action BEST restores the intended design?

Align the VRRP group and restore correct virtual IP service
Correct the route within the intended VRF and test permitted paths
Correct the mismatched OSPF parameter and clear only necessary neighbor state
Restore SVI addressing and route visibility then repeat host tests

Explanation

Correct Answer

Correct the mismatched OSPF parameter and clear only necessary neighbor state. This addresses the observed risk rather than hiding its symptoms. Confirm the repair when neighbor state reaches the expected adjacency and required routes appear.

Incorrect Answers

This remediation choice fits a different situation: Two gateway switches should provide first-hop redundancy for one user VLAN. It does not resolve the stated failure mode. For this case, the decisive remediation choice is to correct the mismatched OSPF parameter and clear only necessary neighbor state.

This remediation choice fits a different situation: An isolated branch VRF lacks a route to the headquarters application. It does not resolve the stated failure mode. For this case, the decisive remediation choice is to correct the mismatched OSPF parameter and clear only necessary neighbor state.

This remediation choice fits a different situation: Hosts in two routed VLANs cannot communicate even though each VLAN has local connectivity. It does not resolve the stated failure mode. For this case, the decisive remediation choice is to correct the mismatched OSPF parameter and clear only necessary neighbor state.

Question 239

An HPE Aruba Networking engineer faces this wired-network scenario: An isolated branch VRF lacks a route to the headquarters application. Which implementation action BEST addresses the requirement?

Configure a supported VRRP group with consistent virtual gateway and priorities
Configure DHCP relay on the appropriate routed interface toward the authorized server
Configure the appropriate VLAN SVIs, routed addressing and inter-VLAN routes on the capable switch
Install a supported route or routing protocol in the correct VRF without leaking unauthorized networks

Explanation

Correct Answer

Route tables and next-hop resolution are scoped by VRF. The targeted implementation is to install a supported route or routing protocol in the correct VRF without leaking unauthorized networks. The deployment succeeds when the approved destination is reachable only from the intended VRF.

Incorrect Answers

This implementation choice fits a different situation: Two gateway switches should provide first-hop redundancy for one user VLAN. It does not resolve the stated failure mode. For this case, the decisive implementation choice is to install a supported route or routing protocol in the correct VRF without leaking unauthorized networks.

This implementation choice fits a different situation: A client VLAN needs addresses from a DHCP server in another routed subnet. It does not resolve the stated failure mode. For this case, the decisive implementation choice is to install a supported route or routing protocol in the correct VRF without leaking unauthorized networks.

This implementation choice fits a different situation: Hosts in two routed VLANs cannot communicate even though each VLAN has local connectivity. It does not resolve the stated failure mode. For this case, the decisive implementation choice is to install a supported route or routing protocol in the correct VRF without leaking unauthorized networks.

Question 240

After implementing the approved change — Install a supported route or routing protocol in the correct VRF without leaking unauthorized networks — for this scenario: An isolated branch VRF lacks a route to the headquarters application. Which observed result BEST verifies the outcome?

Client requests reach the server and return leases with correct subnet settings
The approved destination is reachable only from the intended VRF
Hosts reach the permitted opposite-subnet gateway and return traffic
Clients retain virtual-gateway reachability after an approved master failure

Explanation

Correct Answer

The approved destination is reachable only from the intended VRF. This is the observable acceptance evidence for the decision to install a supported route or routing protocol in the correct VRF without leaking unauthorized networks. It demonstrates the principle that route tables and next-hop resolution are scoped by VRF.

Incorrect Answers

This verification choice fits a different situation: A client VLAN needs addresses from a DHCP server in another routed subnet. It does not resolve the stated failure mode. For this case, the decisive verification choice is to the approved destination is reachable only from the intended VRF.

This verification choice fits a different situation: Hosts in two routed VLANs cannot communicate even though each VLAN has local connectivity. It does not resolve the stated failure mode. For this case, the decisive verification choice is to the approved destination is reachable only from the intended VRF.

This verification choice fits a different situation: Two gateway switches should provide first-hop redundancy for one user VLAN. It does not resolve the stated failure mode. For this case, the decisive verification choice is to the approved destination is reachable only from the intended VRF.

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Pass Your HP HPE7-A08 Exam Easy!

Question 230

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Question 231

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Question 232

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Question 233

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Question 234

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Question 235

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Question 236

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Question 237

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Question 238

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Question 239

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Question 240

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HPE Network Switching Professional (HPE7-A08) Practice Tests