HP HPE7-A08 Practice Test 9

Question 80

An HPE Aruba Networking design review examines: A large office requires two redundant aggregation paths to protect against a single link failure. Which technical principle BEST explains the required approach?

Network addressing and segmentation must be unambiguous across sites
Redundancy must be coordinated with L2 loop control and routing
Operational cutovers require reversible checkpoints and dependency order
PoE consumption and power redundancy can constrain physical deployment

Explanation

Correct Answer

Redundancy must be coordinated with L2 loop control and routing. The case therefore calls for this specifically controlled action: design redundant uplink paths and specify control-plane loop-prevention or multi-chassis behavior. The acceptance evidence is that a single approved path failure leaves user traffic working as designed.

Incorrect Answers

This principle choice fits a different situation: An enterprise consolidates multiple department VLANs onto routed distribution switches. It does not resolve the stated failure mode. For this case, the decisive principle choice is to redundancy must be coordinated with L2 loop control and routing.

This principle choice fits a different situation: A bank will migrate a live campus network over a short maintenance window. It does not resolve the stated failure mode. For this case, the decisive principle choice is to redundancy must be coordinated with L2 loop control and routing.

This principle choice fits a different situation: A new access closet contains devices requiring both data and power over Ethernet. It does not resolve the stated failure mode. For this case, the decisive principle choice is to redundancy must be coordinated with L2 loop control and routing.

Question 81

A risk review for the following wired-network case asks what should be avoided: A large office requires two redundant aggregation paths to protect against a single link failure. Which assumption creates the GREATEST implementation risk?

Counting copper ports but ignoring aggregate power limits
Rolling out 802.1X to every edge port without a recovery allowance for special devices
Planning uplinks without validating optical reach and connector type
Adding uncoordinated parallel links to the same broadcast domain

Explanation

Correct Answer

Adding uncoordinated parallel links to the same broadcast domain. That shortcut fails because redundancy must be coordinated with L2 loop control and routing. Instead, the appropriate approach is to design redundant uplink paths and specify control-plane loop-prevention or multi-chassis behavior.

Incorrect Answers

This misconception choice fits a different situation: A new access closet contains devices requiring both data and power over Ethernet. It does not resolve the stated failure mode. For this case, the decisive misconception choice is to adding uncoordinated parallel links to the same broadcast domain.

This misconception choice fits a different situation: An enterprise needs secure onboarding for employee and guest wired ports. It does not resolve the stated failure mode. For this case, the decisive misconception choice is to adding uncoordinated parallel links to the same broadcast domain.

This misconception choice fits a different situation: A company is expanding its wired campus across three buildings with different uplink distances. It does not resolve the stated failure mode. For this case, the decisive misconception choice is to adding uncoordinated parallel links to the same broadcast domain.

Question 82

Before changing switch configuration, an engineer investigates: A large office requires two redundant aggregation paths to protect against a single link failure. Which FIRST check is most useful for isolating the cause?

Measure traffic classes, marked flows and congestion points
Inspect loop topology, LAG design and failover requirements
Inspect the fiber plant, distance estimates, switch optics support and patch schedule
Examine current topology, critical applications and backup configuration status

Explanation

Correct Answer

Inspect loop topology, LAG design and failover requirements. This first check isolates the relevant mechanism without an untested configuration change. It tests the rule that redundancy must be coordinated with L2 loop control and routing.

Incorrect Answers

This diagnostic choice fits a different situation: An operations center must guarantee voice traffic quality during campus congestion. It does not resolve the stated failure mode. For this case, the decisive diagnostic choice is to inspect loop topology, LAG design and failover requirements.

This diagnostic choice fits a different situation: A company is expanding its wired campus across three buildings with different uplink distances. It does not resolve the stated failure mode. For this case, the decisive diagnostic choice is to inspect loop topology, LAG design and failover requirements.

This diagnostic choice fits a different situation: A bank will migrate a live campus network over a short maintenance window. It does not resolve the stated failure mode. For this case, the decisive diagnostic choice is to inspect loop topology, LAG design and failover requirements.

Question 83

An implementation change is planned for: A large office requires two redundant aggregation paths to protect against a single link failure. Which preventive control BEST reduces unnecessary outage and security risk?

Document trust boundaries and queue budgets before rollout
Reserve a documented power safety margin and monitor budget
Pilot authentication and emergency access controls per endpoint type
Include loss-of-link testing for each individual path

Explanation

Correct Answer

Include loss-of-link testing for each individual path. This safeguard is appropriate before the change to design redundant uplink paths and specify control-plane loop-prevention or multi-chassis behavior; it reduces exposure to the mistake of adding uncoordinated parallel links to the same broadcast domain.

Incorrect Answers

This prevention choice fits a different situation: An operations center must guarantee voice traffic quality during campus congestion. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to include loss-of-link testing for each individual path.

This prevention choice fits a different situation: A new access closet contains devices requiring both data and power over Ethernet. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to include loss-of-link testing for each individual path.

This prevention choice fits a different situation: An enterprise needs secure onboarding for employee and guest wired ports. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to include loss-of-link testing for each individual path.

Question 84

A first repair attempt for this situation failed: A large office requires two redundant aggregation paths to protect against a single link failure. The review found the mistaken approach of adding uncoordinated parallel links to the same broadcast domain. Which targeted recovery action BEST restores the intended design?

Reassign conflicting prefixes and retest routing against the corrected matrix
Replace mismatched optics and revise the circuit schedule before cutover
Remove the unintended loop and implement the supported redundancy arrangement
Correct peer reachability and consistency before enabling affected VSX LAGs

Explanation

Correct Answer

Remove the unintended loop and implement the supported redundancy arrangement. This addresses the observed risk rather than hiding its symptoms. Confirm the repair when a single approved path failure leaves user traffic working as designed.

Incorrect Answers

This remediation choice fits a different situation: An enterprise consolidates multiple department VLANs onto routed distribution switches. It does not resolve the stated failure mode. For this case, the decisive remediation choice is to remove the unintended loop and implement the supported redundancy arrangement.

This remediation choice fits a different situation: A company is expanding its wired campus across three buildings with different uplink distances. It does not resolve the stated failure mode. For this case, the decisive remediation choice is to remove the unintended loop and implement the supported redundancy arrangement.

This remediation choice fits a different situation: A campus uses a VSX core pair plus downstream dual-homed distribution links. It does not resolve the stated failure mode. For this case, the decisive remediation choice is to remove the unintended loop and implement the supported redundancy arrangement.

Question 85

An HPE Aruba Networking engineer faces this wired-network scenario: An enterprise needs secure onboarding for employee and guest wired ports. Which implementation action BEST addresses the requirement?

Plan consistent QoS markings, trust boundaries and egress queue validation
Write a formal change plan with owners, prechecks, verification points and escalation triggers
Design redundant uplink paths and specify control-plane loop-prevention or multi-chassis behavior
Document identity source, port roles, authentication exceptions and enforcement requirements

Explanation

Correct Answer

Access security design should precede port-by-port authentication changes. The targeted implementation is to document identity source, port roles, authentication exceptions and enforcement requirements. The deployment succeeds when employee and guest devices receive only their approved segment and policy.

Incorrect Answers

This implementation choice fits a different situation: An operations center must guarantee voice traffic quality during campus congestion. It does not resolve the stated failure mode. For this case, the decisive implementation choice is to document identity source, port roles, authentication exceptions and enforcement requirements.

This implementation choice fits a different situation: A distributed rollout must be audited against security and change requirements. It does not resolve the stated failure mode. For this case, the decisive implementation choice is to document identity source, port roles, authentication exceptions and enforcement requirements.

This implementation choice fits a different situation: A large office requires two redundant aggregation paths to protect against a single link failure. It does not resolve the stated failure mode. For this case, the decisive implementation choice is to document identity source, port roles, authentication exceptions and enforcement requirements.

Question 86

After implementing the approved change — Document identity source, port roles, authentication exceptions and enforcement requirements — for this scenario: An enterprise needs secure onboarding for employee and guest wired ports. Which observed result BEST verifies the outcome?

The project plan maps every building path to a supported transceiver and connection
Employee and guest devices receive only their approved segment and policy
Test devices reach approved subnets through the intended gateways
Each phase has acceptance results and a clear return-to-service decision

Explanation

Correct Answer

Employee and guest devices receive only their approved segment and policy. This is the observable acceptance evidence for the decision to document identity source, port roles, authentication exceptions and enforcement requirements. It demonstrates the principle that access security design should precede port-by-port authentication changes.

Incorrect Answers

This verification choice fits a different situation: A company is expanding its wired campus across three buildings with different uplink distances. It does not resolve the stated failure mode. For this case, the decisive verification choice is to employee and guest devices receive only their approved segment and policy.

This verification choice fits a different situation: An enterprise consolidates multiple department VLANs onto routed distribution switches. It does not resolve the stated failure mode. For this case, the decisive verification choice is to employee and guest devices receive only their approved segment and policy.

This verification choice fits a different situation: A bank will migrate a live campus network over a short maintenance window. It does not resolve the stated failure mode. For this case, the decisive verification choice is to employee and guest devices receive only their approved segment and policy.

Question 87

An HPE Aruba Networking design review examines: An enterprise needs secure onboarding for employee and guest wired ports. Which technical principle BEST explains the required approach?

VSF planning includes topology, conductor and failover behavior
Implementation success includes traceability and change control
VSX availability depends on independent peer communication and consistent LAG design
Access security design should precede port-by-port authentication changes

Explanation

Correct Answer

Access security design should precede port-by-port authentication changes. The case therefore calls for this specifically controlled action: document identity source, port roles, authentication exceptions and enforcement requirements. The acceptance evidence is that employee and guest devices receive only their approved segment and policy.

Incorrect Answers

This principle choice fits a different situation: A campus will deploy one VSF stack across adjoining network closets. It does not resolve the stated failure mode. For this case, the decisive principle choice is to access security design should precede port-by-port authentication changes.

This principle choice fits a different situation: A distributed rollout must be audited against security and change requirements. It does not resolve the stated failure mode. For this case, the decisive principle choice is to access security design should precede port-by-port authentication changes.

This principle choice fits a different situation: A campus uses a VSX core pair plus downstream dual-homed distribution links. It does not resolve the stated failure mode. For this case, the decisive principle choice is to access security design should precede port-by-port authentication changes.

Question 88

A risk review for the following wired-network case asks what should be avoided: An enterprise needs secure onboarding for employee and guest wired ports. Which assumption creates the GREATEST implementation risk?

Counting copper ports but ignoring aggregate power limits
Rolling out 802.1X to every edge port without a recovery allowance for special devices
Sharing an unprotected keepalive path with the ISL and claiming full isolation
Planning uplinks without validating optical reach and connector type

Explanation

Correct Answer

Rolling out 802.1X to every edge port without a recovery allowance for special devices. That shortcut fails because access security design should precede port-by-port authentication changes. Instead, the appropriate approach is to document identity source, port roles, authentication exceptions and enforcement requirements.

Incorrect Answers

This misconception choice fits a different situation: A new access closet contains devices requiring both data and power over Ethernet. It does not resolve the stated failure mode. For this case, the decisive misconception choice is to rolling out 802.1X to every edge port without a recovery allowance for special devices.

This misconception choice fits a different situation: A campus uses a VSX core pair plus downstream dual-homed distribution links. It does not resolve the stated failure mode. For this case, the decisive misconception choice is to rolling out 802.1X to every edge port without a recovery allowance for special devices.

This misconception choice fits a different situation: A company is expanding its wired campus across three buildings with different uplink distances. It does not resolve the stated failure mode. For this case, the decisive misconception choice is to rolling out 802.1X to every edge port without a recovery allowance for special devices.

Question 89

Before changing switch configuration, an engineer investigates: An enterprise needs secure onboarding for employee and guest wired ports. Which FIRST check is most useful for isolating the cause?

Inspect loop topology, LAG design and failover requirements
Audit VLAN IDs, IP masks, gateway addresses and routing boundaries
Review ISL capacity, keepalive routing and peer synchronization
List endpoint classes, RADIUS reachability and allowed fallback behavior

Explanation

Correct Answer

List endpoint classes, RADIUS reachability and allowed fallback behavior. This first check isolates the relevant mechanism without an untested configuration change. It tests the rule that access security design should precede port-by-port authentication changes.

Incorrect Answers

This diagnostic choice fits a different situation: A large office requires two redundant aggregation paths to protect against a single link failure. It does not resolve the stated failure mode. For this case, the decisive diagnostic choice is to list endpoint classes, RADIUS reachability and allowed fallback behavior.

This diagnostic choice fits a different situation: An enterprise consolidates multiple department VLANs onto routed distribution switches. It does not resolve the stated failure mode. For this case, the decisive diagnostic choice is to list endpoint classes, RADIUS reachability and allowed fallback behavior.

This diagnostic choice fits a different situation: A campus uses a VSX core pair plus downstream dual-homed distribution links. It does not resolve the stated failure mode. For this case, the decisive diagnostic choice is to list endpoint classes, RADIUS reachability and allowed fallback behavior.

Question 90

An implementation change is planned for: An enterprise needs secure onboarding for employee and guest wired ports. Which preventive control BEST reduces unnecessary outage and security risk?

Document trust boundaries and queue budgets before rollout
Pilot authentication and emergency access controls per endpoint type
Approve an authoritative IPAM worksheet before provisioning
Capture backups and dry-run the migration on representative links

Explanation

Correct Answer

Pilot authentication and emergency access controls per endpoint type. This safeguard is appropriate before the change to document identity source, port roles, authentication exceptions and enforcement requirements; it reduces exposure to the mistake of rolling out 802.1X to every edge port without a recovery allowance for special devices.

Incorrect Answers

This prevention choice fits a different situation: An operations center must guarantee voice traffic quality during campus congestion. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to pilot authentication and emergency access controls per endpoint type.

This prevention choice fits a different situation: An enterprise consolidates multiple department VLANs onto routed distribution switches. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to pilot authentication and emergency access controls per endpoint type.

This prevention choice fits a different situation: A bank will migrate a live campus network over a short maintenance window. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to pilot authentication and emergency access controls per endpoint type.

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Question 80

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Question 81

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Question 82

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Question 83

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Question 84

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Question 85

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Question 86

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Question 87

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Question 88

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Question 89

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Question 90

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HPE Network Switching Professional (HPE7-A08) Practice Tests