HP HPE7-A08 Practice Test 26

Question 250

Before changing switch configuration, an engineer investigates: Two gateway switches should provide first-hop redundancy for one user VLAN. Which FIRST check is most useful for isolating the cause?

Inspect OSPF interface, neighbor, area and authentication diagnostics
Inspect VRRP state, priorities and client default-gateway settings
Inspect underlay routing, tunnel endpoint and VNI mappings
Check relay configuration, server reachability and packet counters

Explanation

Correct Answer

Inspect VRRP state, priorities and client default-gateway settings. This first check isolates the relevant mechanism without an untested configuration change. It tests the rule that vRRP provides a shared virtual default gateway with controlled master selection.

Incorrect Answers

This diagnostic 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 diagnostic choice is to inspect VRRP state, priorities and client default-gateway settings.

This diagnostic 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 diagnostic choice is to inspect VRRP state, priorities and client default-gateway settings.

This diagnostic 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 diagnostic choice is to inspect VRRP state, priorities and client default-gateway settings.

Question 251

An implementation change is planned for: Two gateway switches should provide first-hop redundancy for one user VLAN. Which preventive control BEST reduces unnecessary outage and security risk?

Check access policy and bidirectional path before enabling routing
Stage routing peers with a known-good interface and timer baseline
Document supported model, software and route-target expectations
Perform master-down testing after checking gateway MAC behavior

Explanation

Correct Answer

Perform master-down testing after checking gateway MAC behavior. This safeguard is appropriate before the change to configure a supported VRRP group with consistent virtual gateway and priorities; it reduces exposure to the mistake of giving the peers unrelated virtual IP addresses and expecting automatic failover.

Incorrect Answers

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 perform master-down testing after checking gateway MAC behavior.

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 perform master-down testing after checking gateway MAC behavior.

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 perform master-down testing after checking gateway MAC behavior.

Question 252

A first repair attempt for this situation failed: Two gateway switches should provide first-hop redundancy for one user VLAN. The review found the mistaken approach of giving the peers unrelated virtual IP addresses and expecting automatic failover. Which targeted recovery action BEST restores the intended design?

Correct the relay destination and interface then renew a test lease
Repair underlay or mapping inconsistencies before re-enabling overlay traffic
Align the VRRP group and restore correct virtual IP service
Correct the mismatched OSPF parameter and clear only necessary neighbor state

Explanation

Correct Answer

Align the VRRP group and restore correct virtual IP service. This addresses the observed risk rather than hiding its symptoms. Confirm the repair when clients retain virtual-gateway reachability after an approved master failure.

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 align the VRRP group and restore correct virtual IP service.

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 align the VRRP group and restore correct virtual IP service.

This remediation 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 remediation choice is to align the VRRP group and restore correct virtual IP service.

Question 253

An HPE Aruba Networking engineer faces this wired-network scenario: A data center design requires VXLAN connectivity between routed transport endpoints. Which implementation action BEST addresses the requirement?

Configure DHCP relay on the appropriate routed interface toward the authorized server
Match compatible OSPF interfaces, area assignment and authentication settings
Configure the appropriate VLAN SVIs, routed addressing and inter-VLAN routes on the capable switch
Validate platform-supported overlay functions and configure required underlay reachability first

Explanation

Correct Answer

Overlay tunnels require a working routed underlay and compatible control plane. The targeted implementation is to validate platform-supported overlay functions and configure required underlay reachability first. The deployment succeeds when the test overlay forwards intended tenant traffic without unintended leakage.

Incorrect Answers

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 validate platform-supported overlay functions and configure required underlay reachability first.

This implementation 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 implementation choice is to validate platform-supported overlay functions and configure required underlay reachability first.

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 validate platform-supported overlay functions and configure required underlay reachability first.

Question 254

After implementing the approved change — Validate platform-supported overlay functions and configure required underlay reachability first — for this scenario: A data center design requires VXLAN connectivity between routed transport endpoints. Which observed result BEST verifies the outcome?

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

Explanation

Correct Answer

The test overlay forwards intended tenant traffic without unintended leakage. This is the observable acceptance evidence for the decision to validate platform-supported overlay functions and configure required underlay reachability first. It demonstrates the principle that overlay tunnels require a working routed underlay and compatible control plane.

Incorrect Answers

This verification 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 verification choice is to the test overlay forwards intended tenant traffic without unintended leakage.

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 test overlay forwards intended tenant traffic without unintended leakage.

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 test overlay forwards intended tenant traffic without unintended leakage.

Question 255

An HPE Aruba Networking design review examines: A data center design requires VXLAN connectivity between routed transport endpoints. Which technical principle BEST explains the required approach?

DHCP broadcast discovery does not inherently traverse routers without relay
VRRP provides a shared virtual default gateway with controlled master selection
Layer 3 routing requires valid interfaces and reachable reverse paths
Overlay tunnels require a working routed underlay and compatible control plane

Explanation

Correct Answer

Overlay tunnels require a working routed underlay and compatible control plane. The case therefore calls for this specifically controlled action: validate platform-supported overlay functions and configure required underlay reachability first. The acceptance evidence is that the test overlay forwards intended tenant traffic without unintended leakage.

Incorrect Answers

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 overlay tunnels require a working routed underlay and compatible control plane.

This principle 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 principle choice is to overlay tunnels require a working routed underlay and compatible control plane.

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 overlay tunnels require a working routed underlay and compatible control plane.

Question 256

A risk review for the following wired-network case asks what should be avoided: A data center design requires VXLAN connectivity between routed transport endpoints. Which assumption creates the GREATEST implementation risk?

Assuming separate VLAN broadcasts can communicate without routing
Building a VNI while ignoring underlay IP reachability or platform support
Giving the peers unrelated virtual IP addresses and expecting automatic failover
Adding an ordinary static route and expecting it to forward DHCP broadcasts

Explanation

Correct Answer

Building a VNI while ignoring underlay IP reachability or platform support. That shortcut fails because overlay tunnels require a working routed underlay and compatible control plane. Instead, the appropriate approach is to validate platform-supported overlay functions and configure required underlay reachability first.

Incorrect Answers

This misconception 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 misconception choice is to building a VNI while ignoring underlay IP reachability or platform support.

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 building a VNI while ignoring underlay IP reachability or platform support.

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 building a VNI while ignoring underlay IP reachability or platform support.

Question 257

Before changing switch configuration, an engineer investigates: A data center design requires VXLAN connectivity between routed transport endpoints. Which FIRST check is most useful for isolating the cause?

Inspect VRRP state, priorities and client default-gateway settings
Inspect VRF assignment, lookup table and reachable next hop
Inspect SVI operational state, IP subnets and route lookup
Inspect underlay routing, tunnel endpoint and VNI mappings

Explanation

Correct Answer

Inspect underlay routing, tunnel endpoint and VNI mappings. This first check isolates the relevant mechanism without an untested configuration change. It tests the rule that overlay tunnels require a working routed underlay and compatible control plane.

Incorrect Answers

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 underlay routing, tunnel endpoint and VNI mappings.

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 underlay routing, tunnel endpoint and VNI mappings.

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 underlay routing, tunnel endpoint and VNI mappings.

Question 258

An implementation change is planned for: A data center design requires VXLAN connectivity between routed transport endpoints. Which preventive control BEST reduces unnecessary outage and security risk?

Perform master-down testing after checking gateway MAC behavior
Document supported model, software and route-target expectations
Verify relay paths and authorized servers during site acceptance
Stage routing peers with a known-good interface and timer baseline

Explanation

Correct Answer

Document supported model, software and route-target expectations. This safeguard is appropriate before the change to validate platform-supported overlay functions and configure required underlay reachability first; it reduces exposure to the mistake of building a VNI while ignoring underlay IP reachability or platform support.

Incorrect Answers

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 document supported model, software and route-target expectations.

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 document supported model, software and route-target expectations.

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 document supported model, software and route-target expectations.

Question 259

A first repair attempt for this situation failed: A data center design requires VXLAN connectivity between routed transport endpoints. The review found the mistaken approach of building a VNI while ignoring underlay IP reachability or platform support. Which targeted recovery action BEST restores the intended design?

Repair underlay or mapping inconsistencies before re-enabling overlay traffic
Correct the relay destination and interface then renew a test lease
Align the VRRP group and restore correct virtual IP service
Restore SVI addressing and route visibility then repeat host tests

Explanation

Correct Answer

Repair underlay or mapping inconsistencies before re-enabling overlay traffic. This addresses the observed risk rather than hiding its symptoms. Confirm the repair when the test overlay forwards intended tenant traffic without unintended leakage.

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 repair underlay or mapping inconsistencies before re-enabling overlay traffic.

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 repair underlay or mapping inconsistencies before re-enabling overlay traffic.

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 repair underlay or mapping inconsistencies before re-enabling overlay traffic.

Question 260

An HPE Aruba Networking engineer faces this wired-network scenario: A client VLAN needs addresses from a DHCP server in another routed subnet. Which implementation action BEST addresses the requirement?

Validate platform-supported overlay functions and configure required underlay reachability first
Configure DHCP relay on the appropriate routed interface toward the authorized server
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

DHCP broadcast discovery does not inherently traverse routers without relay. The targeted implementation is to configure DHCP relay on the appropriate routed interface toward the authorized server. The deployment succeeds when client requests reach the server and return leases with correct subnet settings.

Incorrect Answers

This implementation 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 implementation choice is to configure DHCP relay on the appropriate routed interface toward the authorized server.

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 configure DHCP relay on the appropriate routed interface toward the authorized server.

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 configure DHCP relay on the appropriate routed interface toward the authorized server.

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Pass Your HP HPE7-A08 Exam Easy!

Question 250

Explanation

Correct Answer

Incorrect Answers

Question 251

Explanation

Correct Answer

Incorrect Answers

Question 252

Explanation

Correct Answer

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Question 253

Explanation

Correct Answer

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Question 254

Explanation

Correct Answer

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Question 255

Explanation

Correct Answer

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Question 256

Explanation

Correct Answer

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Question 257

Explanation

Correct Answer

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Question 258

Explanation

Correct Answer

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Question 259

Explanation

Correct Answer

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Question 260

Explanation

Correct Answer

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HPE Network Switching Professional (HPE7-A08) Practice Tests