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HP HPE7-A01 Practice Test 14

Question 130

A campus distribution pair should survive one uplink without Layer 2 loops during recovery. What should the team inspect to confirm the result?

  1. Compare effective configuration and member software before and after an election
  2. Confirm member ID, software and expected port profiles after it rejoins
  3. Test a planned building-level power failure and verify alternate gateway and path availability
  4. Inspect active bundle members and blocked/forwarding STP states while changing links

Explanation

Correct Answer

D:

These states reveal whether the physical backup is correctly controlled. Redundancy needs deterministic forwarding and loop prevention.

Incorrect Answers

A:

A new conductor should not silently lose edge security settings. It would not resolve the documented symptom; these states reveal whether the physical backup is correctly controlled.

B:

Hardware presence alone does not confirm the logical port numbering. In this situation, these states reveal whether the physical backup is correctly controlled.

C:

Device-level failover cannot prove building-level recovery. By contrast, these states reveal whether the physical backup is correctly controlled.

Question 131

A campus distribution pair should survive one uplink without Layer 2 loops during recovery. Which misconception is most likely to obstruct a correct fix?

  1. Disable all peer-liveness checks merely to clear an operational alarm
  2. Assume two access VLANs alone provide separate routing tables within one default VRF
  3. Connect both uplinks as independent forwarding trunks without loop protection
  4. Assign two unrelated virtual MACs to what is supposed to be one VSX active gateway

Explanation

Correct Answer

C:

Parallel bridges can create a broadcast loop. Redundancy needs deterministic forwarding and loop prevention.

Incorrect Answers

A:

Suppressing detection can increase split-brain risk. The relevant technical distinction is that parallel bridges can create a broadcast loop.

B:

VLAN segmentation need not separate L3 forwarding contexts. It would not resolve the documented symptom; parallel bridges can create a broadcast loop.

D:

Inconsistent gateway identity may cause client neighbor changes and outages. By contrast, parallel bridges can create a broadcast loop.

Question 132

A campus distribution pair should survive one uplink without Layer 2 loops during recovery. What precaution is most important before the change is expanded?

  1. Test failover with observed MAC relearning and application reachability
  2. Keep a labeled spare and verified configuration backup before swapping hardware
  3. Spread critical APs across members or provide alternate coverage where feasible
  4. Stage new members with matched firmware and a backup of the stack configuration

Explanation

Correct Answer

A:

Recovery should occur without flooding storms or long service disruption. These states reveal whether the physical backup is correctly controlled.

Incorrect Answers

B:

A documented spare path shortens user downtime. By contrast, recovery should occur without flooding storms or long service disruption.

C:

Power-domain diversity limits a single member's impact. The relevant technical distinction is that recovery should occur without flooding storms or long service disruption.

D:

Controlled joining lowers the risk of disrupting existing ports. Here, however, recovery should occur without flooding storms or long service disruption.

Question 133

A VSF stack changes the elected conductor after a power event and access policies drift. Which configuration decision most directly resolves the situation?

  1. Review the shared active-gateway virtual IP/MAC and SVI configuration on both peers
  2. Review stack election priorities, software compatibility and synchronized configuration
  3. Follow the supported member replacement and stack-identity restoration steps
  4. Verify the LAG or STP configuration that controls uplink redundancy

Explanation

Correct Answer

B:

Stable leadership and matching software reduce inconsistent stack state. A new conductor should not silently lose edge security settings.

Incorrect Answers

A:

Consistent gateway parameters let either peer forward for the subnet. Here, however, stable leadership and matching software reduce inconsistent stack state.

C:

A correctly provisioned replacement rejoins without overwriting the surviving stack. The relevant technical distinction is that stable leadership and matching software reduce inconsistent stack state.

D:

The forwarding state may be deliberate under loop-prevention rules. In this situation, stable leadership and matching software reduce inconsistent stack state.

Question 134

A VSF stack changes the elected conductor after a power event and access policies drift. Which check most directly demonstrates the desired network behavior?

  1. Check ARP/neighbor resolution and client gateway traffic on each peer separately
  2. Check each VRF route table and allowed cross-VRF flow in a live test
  3. Compare effective configuration and member software before and after an election
  4. Inspect active bundle members and blocked/forwarding STP states while changing links

Explanation

Correct Answer

C:

A new conductor should not silently lose edge security settings. Stable leadership and matching software reduce inconsistent stack state.

Incorrect Answers

A:

A reachable VIP on one node does not prove resilient first-hop operation. In this situation, a new conductor should not silently lose edge security settings.

B:

Distinct route entries prove isolation beyond VLAN tagging. It would not resolve the documented symptom; a new conductor should not silently lose edge security settings.

D:

These states reveal whether the physical backup is correctly controlled. Here, however, a new conductor should not silently lose edge security settings.

Question 135

A VSF stack changes the elected conductor after a power event and access policies drift. Which assumption would be most misleading when investigating this situation?

  1. Assume a healthy keepalive link replaces the data synchronization functions of the ISL
  2. Assume all newly inserted stack members inherit every configuration before joining completes
  3. Assume virtualized routing contexts provide independent physical backplanes
  4. Assume VSX high availability guarantees zero application loss under every upgrade condition

Explanation

Correct Answer

B:

A joining device can be incompatible or in recovery state. Stable leadership and matching software reduce inconsistent stack state.

Incorrect Answers

A:

Keepalive and ISL serve different purposes. In this situation, a joining device can be incompatible or in recovery state.

C:

Logical separation does not duplicate hardware capacity. By contrast, a joining device can be incompatible or in recovery state.

D:

Network services can depend on external routing and client behavior. It would not resolve the documented symptom; a joining device can be incompatible or in recovery state.

Question 136

A VSF stack changes the elected conductor after a power event and access policies drift. Which safeguard best reduces the deployment risk in this case?

  1. Capacity-test the combined peak workload and define failure-mode limits
  2. Replace an unsupported optic in a maintenance window and verify a safe recovery sequence
  3. Stage new members with matched firmware and a backup of the stack configuration
  4. Validate the topology against the supported platform guide before modifying failover roles

Explanation

Correct Answer

C:

Controlled joining lowers the risk of disrupting existing ports. A new conductor should not silently lose edge security settings.

Incorrect Answers

A:

Shared resilience must be sized for the largest expected simultaneous demand. The relevant technical distinction is that controlled joining lowers the risk of disrupting existing ports.

B:

A partially degraded peer pair can behave unpredictably under another failure. It would not resolve the documented symptom; controlled joining lowers the risk of disrupting existing ports.

D:

Ad hoc changes to both peers can worsen an existing loop. By contrast, controlled joining lowers the risk of disrupting existing ports.

Question 137

A regional backbone uses two VSX switches but operators accidentally configure different VLANs on the peers. What is the most appropriate first technical change?

  1. Review the shared active-gateway virtual IP/MAC and SVI configuration on both peers
  2. Verify the LAG or STP configuration that controls uplink redundancy
  3. Design separate power domains and redundant routed campus links rather than relying only on one chassis
  4. Enable appropriate configuration synchronization or maintain reviewed matching objects

Explanation

Correct Answer

D:

Both peers must support the same intended multi-chassis forwarding services. Divergent peer settings may appear only on one hashed path.

Incorrect Answers

A:

Consistent gateway parameters let either peer forward for the subnet. The relevant technical distinction is that both peers must support the same intended multi-chassis forwarding services.

B:

The forwarding state may be deliberate under loop-prevention rules. By contrast, both peers must support the same intended multi-chassis forwarding services.

C:

Geographic power isolation must accompany logical path redundancy. Here, however, both peers must support the same intended multi-chassis forwarding services.

Question 138

A regional backbone uses two VSX switches but operators accidentally configure different VLANs on the peers. Which observation would best verify that the intended behavior is working?

  1. Compare VLAN, LAG and active-gateway parameters on each peer and test flows
  2. Inspect stack membership, conductor role and port availability during member removal
  3. Check AP uplink placement and power draw before and after member loss
  4. Confirm member ID, software and expected port profiles after it rejoins

Explanation

Correct Answer

A:

Divergent peer settings may appear only on one hashed path. Both peers must support the same intended multi-chassis forwarding services.

Incorrect Answers

B:

A healthy stack must maintain the intended surviving interfaces. In this situation, divergent peer settings may appear only on one hashed path.

C:

Resilient switching requires enough live physical interfaces. The relevant technical distinction is that divergent peer settings may appear only on one hashed path.

D:

Hardware presence alone does not confirm the logical port numbering. Here, however, divergent peer settings may appear only on one hashed path.

Question 139

A regional backbone uses two VSX switches but operators accidentally configure different VLANs on the peers. Which belief about the configuration should the team reject?

  1. Insert an unprepared device with duplicate member identity and assume ports map correctly
  2. Assume a shared virtual IP alone determines correct routing on each VSX node
  3. Assume a common VSF control plane supplies power to ports on a failed unit
  4. Assume all VSX configuration is automatically synchronized without enabling supported sync settings

Explanation

Correct Answer

D:

Only configured sync categories are replicated. Both peers must support the same intended multi-chassis forwarding services.

Incorrect Answers

A:

Identity conflict can attach users to unintended configuration. It would not resolve the documented symptom; only configured sync categories are replicated.

B:

Each peer still needs valid routed interfaces and protocol state. In this situation, only configured sync categories are replicated.

C:

Stacking virtualizes management, not the failed hardware's electrical outputs. Here, however, only configured sync categories are replicated.

Question 140

A regional backbone uses two VSX switches but operators accidentally configure different VLANs on the peers. What should be included in the rollout plan to limit a foreseeable failure?

  1. Spread critical APs across members or provide alternate coverage where feasible
  2. Use side-by-side peer diffs before deploying a new shared VLAN
  3. Keep a labeled spare and verified configuration backup before swapping hardware
  4. Validate the topology against the supported platform guide before modifying failover roles

Explanation

Correct Answer

B:

Preflight checks prevent asymmetric blackholes in the pair. Divergent peer settings may appear only on one hashed path.

Incorrect Answers

A:

Power-domain diversity limits a single member's impact. By contrast, preflight checks prevent asymmetric blackholes in the pair.

C:

A documented spare path shortens user downtime. It would not resolve the documented symptom; preflight checks prevent asymmetric blackholes in the pair.

D:

Ad hoc changes to both peers can worsen an existing loop. In this situation, preflight checks prevent asymmetric blackholes in the pair.

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

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