HP HPE7-A08 Practice Test 17

Question 160

An implementation change is planned for: A switch works after a CLI session but loses a recent change on reboot. Which preventive control BEST reduces unnecessary outage and security risk?

Capture show-command evidence and scope before write operations
Document a save-and-verify step in every change checklist
Make changes under an authorized administrator account and save the approved config
Set change thresholds and measure before-and-after throughput

Explanation

Correct Answer

Document a save-and-verify step in every change checklist. This safeguard is appropriate before the change to persist the tested running configuration to startup configuration using the supported save method; it reduces exposure to the mistake of assuming a successful command automatically persists after restart.

Incorrect Answers

This prevention choice fits a different situation: A support engineer needs read-only evidence for an interface outage. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to document a save-and-verify step in every change checklist.

This prevention choice fits a different situation: An engineer must add a supported VLAN and access port via local AOS-CX CLI. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to document a save-and-verify step in every change checklist.

This prevention choice fits a different situation: A bulk replication flow overwhelms a lower-speed intersite uplink. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to document a save-and-verify step in every change checklist.

Question 161

A first repair attempt for this situation failed: A switch works after a CLI session but loses a recent change on reboot. The review found the mistaken approach of assuming a successful command automatically persists after restart. Which targeted recovery action BEST restores the intended design?

Save the validated configuration and repeat the nonproduction restart test
Reproduce the initial symptom from captured facts and apply only the validated fix
Re-enter the proper configuration context and correct the interface VLAN assignment
Reassign the device to the correct group and reconcile delivered policy

Explanation

Correct Answer

Save the validated configuration and repeat the nonproduction restart test. This addresses the observed risk rather than hiding its symptoms. Confirm the repair when the intended setting survives a controlled reload in a test environment.

Incorrect Answers

This remediation choice fits a different situation: A support engineer needs read-only evidence for an interface outage. It does not resolve the stated failure mode. For this case, the decisive remediation choice is to save the validated configuration and repeat the nonproduction restart test.

This remediation choice fits a different situation: An engineer must add a supported VLAN and access port via local AOS-CX CLI. It does not resolve the stated failure mode. For this case, the decisive remediation choice is to save the validated configuration and repeat the nonproduction restart test.

This remediation choice fits a different situation: A new AOS-CX switch appears in device inventory but has no intended Central configuration. It does not resolve the stated failure mode. For this case, the decisive remediation choice is to save the validated configuration and repeat the nonproduction restart test.

Question 162

An HPE Aruba Networking engineer faces this wired-network scenario: A support engineer needs read-only evidence for an interface outage. Which implementation action BEST addresses the requirement?

Use configuration context to create the VLAN then apply the access VLAN to the intended interface
Use supported show commands and logs before modifying configuration
Persist the tested running configuration to startup configuration using the supported save method
Configure a supported VRRP group with consistent virtual gateway and priorities

Explanation

Correct Answer

Operational inspection and configuration mutation have separate authorization needs. The targeted implementation is to use supported show commands and logs before modifying configuration. The deployment succeeds when the incident record contains timestamped interface and log evidence.

Incorrect Answers

This implementation choice fits a different situation: An engineer must add a supported VLAN and access port via local AOS-CX CLI. It does not resolve the stated failure mode. For this case, the decisive implementation choice is to use supported show commands and logs before modifying configuration.

This implementation choice fits a different situation: A switch works after a CLI session but loses a recent change on reboot. It does not resolve the stated failure mode. For this case, the decisive implementation choice is to use supported show commands and logs before modifying configuration.

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 use supported show commands and logs before modifying configuration.

Question 163

After implementing the approved change — Use supported show commands and logs before modifying configuration — for this scenario: A support engineer needs read-only evidence for an interface outage. Which observed result BEST verifies the outcome?

The intended setting survives a controlled reload in a test environment
The interface running state carries the assigned VLAN to the test host
The approved destination is reachable only from the intended VRF
The incident record contains timestamped interface and log evidence

Explanation

Correct Answer

The incident record contains timestamped interface and log evidence. This is the observable acceptance evidence for the decision to use supported show commands and logs before modifying configuration. It demonstrates the principle that operational inspection and configuration mutation have separate authorization needs.

Incorrect Answers

This verification choice fits a different situation: A switch works after a CLI session but loses a recent change on reboot. It does not resolve the stated failure mode. For this case, the decisive verification choice is to the incident record contains timestamped interface and log evidence.

This verification choice fits a different situation: An engineer must add a supported VLAN and access port via local AOS-CX CLI. It does not resolve the stated failure mode. For this case, the decisive verification choice is to the incident record contains timestamped interface and log evidence.

This verification 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 verification choice is to the incident record contains timestamped interface and log evidence.

Question 164

An HPE Aruba Networking design review examines: A support engineer needs read-only evidence for an interface outage. Which technical principle BEST explains the required approach?

Unsaved running state is not a durable replacement for startup configuration
Operational inspection and configuration mutation have separate authorization needs
CLI commands depend on the correct operational or configuration context
Overlay tunnels require a working routed underlay and compatible control plane

Explanation

Correct Answer

Operational inspection and configuration mutation have separate authorization needs. The case therefore calls for this specifically controlled action: use supported show commands and logs before modifying configuration. The acceptance evidence is that the incident record contains timestamped interface and log evidence.

Incorrect Answers

This principle choice fits a different situation: A switch works after a CLI session but loses a recent change on reboot. It does not resolve the stated failure mode. For this case, the decisive principle choice is to operational inspection and configuration mutation have separate authorization needs.

This principle choice fits a different situation: An engineer must add a supported VLAN and access port via local AOS-CX CLI. It does not resolve the stated failure mode. For this case, the decisive principle choice is to operational inspection and configuration mutation have separate authorization needs.

This principle 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 principle choice is to operational inspection and configuration mutation have separate authorization needs.

Question 165

A risk review for the following wired-network case asks what should be avoided: A support engineer needs read-only evidence for an interface outage. Which assumption creates the GREATEST implementation risk?

Assuming a successful command automatically persists after restart
Issuing interface configuration commands in operator mode
Disabling authentication for an entire access closet because one printer fails
Changing production settings while still gathering a baseline

Explanation

Correct Answer

Changing production settings while still gathering a baseline. That shortcut fails because operational inspection and configuration mutation have separate authorization needs. Instead, the appropriate approach is to use supported show commands and logs before modifying configuration.

Incorrect Answers

This misconception choice fits a different situation: A switch works after a CLI session but loses a recent change on reboot. It does not resolve the stated failure mode. For this case, the decisive misconception choice is to changing production settings while still gathering a baseline.

This misconception choice fits a different situation: An engineer must add a supported VLAN and access port via local AOS-CX CLI. It does not resolve the stated failure mode. For this case, the decisive misconception choice is to changing production settings while still gathering a baseline.

This misconception choice fits a different situation: A printer cannot run 802.1X but must stay in a limited wired segment. It does not resolve the stated failure mode. For this case, the decisive misconception choice is to changing production settings while still gathering a baseline.

Question 166

Before changing switch configuration, an engineer investigates: A support engineer needs read-only evidence for an interface outage. Which FIRST check is most useful for isolating the cause?

Compare running and startup configuration before the maintenance test
Check show interface, show logging and relevant show configuration outputs
Inspect the CLI prompt, running configuration and effective port status
Inspect queue-depth, drop counters and applied scheduling profiles

Explanation

Correct Answer

Check show interface, show logging and relevant show configuration outputs. This first check isolates the relevant mechanism without an untested configuration change. It tests the rule that operational inspection and configuration mutation have separate authorization needs.

Incorrect Answers

This diagnostic choice fits a different situation: A switch works after a CLI session but loses a recent change on reboot. It does not resolve the stated failure mode. For this case, the decisive diagnostic choice is to check show interface, show logging and relevant show configuration outputs.

This diagnostic choice fits a different situation: An engineer must add a supported VLAN and access port via local AOS-CX CLI. It does not resolve the stated failure mode. For this case, the decisive diagnostic choice is to check show interface, show logging and relevant show configuration outputs.

This diagnostic choice fits a different situation: A WAN uplink congests and video packets starve critical control traffic. It does not resolve the stated failure mode. For this case, the decisive diagnostic choice is to check show interface, show logging and relevant show configuration outputs.

Question 167

An implementation change is planned for: A support engineer needs read-only evidence for an interface outage. Which preventive control BEST reduces unnecessary outage and security risk?

Document a save-and-verify step in every change checklist
Make changes under an authorized administrator account and save the approved config
Stage a failover test with independent peer paths
Capture show-command evidence and scope before write operations

Explanation

Correct Answer

Capture show-command evidence and scope before write operations. This safeguard is appropriate before the change to use supported show commands and logs before modifying configuration; it reduces exposure to the mistake of changing production settings while still gathering a baseline.

Incorrect Answers

This prevention choice fits a different situation: A switch works after a CLI session but loses a recent change on reboot. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to capture show-command evidence and scope before write operations.

This prevention choice fits a different situation: An engineer must add a supported VLAN and access port via local AOS-CX CLI. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to capture show-command evidence and scope before write operations.

This prevention choice fits a different situation: Two aggregation switches use VSX, but a downstream dual-homed LAG drops on peer failure. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to capture show-command evidence and scope before write operations.

Question 168

A first repair attempt for this situation failed: A support engineer needs read-only evidence for an interface outage. The review found the mistaken approach of changing production settings while still gathering a baseline. Which targeted recovery action BEST restores the intended design?

Re-enter the proper configuration context and correct the interface VLAN assignment
Save the validated configuration and repeat the nonproduction restart test
Reproduce the initial symptom from captured facts and apply only the validated fix
Repair the stack adjacency and restore the approved member order

Explanation

Correct Answer

Reproduce the initial symptom from captured facts and apply only the validated fix. This addresses the observed risk rather than hiding its symptoms. Confirm the repair when the incident record contains timestamped interface and log evidence.

Incorrect Answers

This remediation choice fits a different situation: An engineer must add a supported VLAN and access port via local AOS-CX CLI. It does not resolve the stated failure mode. For this case, the decisive remediation choice is to reproduce the initial symptom from captured facts and apply only the validated fix.

This remediation choice fits a different situation: A switch works after a CLI session but loses a recent change on reboot. It does not resolve the stated failure mode. For this case, the decisive remediation choice is to reproduce the initial symptom from captured facts and apply only the validated fix.

This remediation choice fits a different situation: A department wants multiple 6300 access switches to behave as one manageable stack. It does not resolve the stated failure mode. For this case, the decisive remediation choice is to reproduce the initial symptom from captured facts and apply only the validated fix.

Question 169

An HPE Aruba Networking engineer faces this wired-network scenario: A fiber uplink between two buildings never reaches operational up state. Which implementation action BEST addresses the requirement?

Check cables, interface speeds, transceiver form factors and device negotiation compatibility
Install supported power feeds and size the PoE budget against all expected endpoints
Design appropriate PIM-enabled multicast routing and compatible unicast reachability
Verify optic type, fiber reach, polarity and connector compatibility against both switch ports

Explanation

Correct Answer

Optical physical-layer compatibility is required before logical configuration. The targeted implementation is to verify optic type, fiber reach, polarity and connector compatibility against both switch ports. The deployment succeeds when the optical link reports stable up state with expected speed and error counters.

Incorrect Answers

This implementation choice fits a different situation: A remote rack has uplink ports but inconsistent link speeds and duplex behavior. It does not resolve the stated failure mode. For this case, the decisive implementation choice is to verify optic type, fiber reach, polarity and connector compatibility against both switch ports.

This implementation choice fits a different situation: An access closet requires both redundant power and PoE for cameras. It does not resolve the stated failure mode. For this case, the decisive implementation choice is to verify optic type, fiber reach, polarity and connector compatibility against both switch ports.

This implementation choice fits a different situation: Multicast must reach receivers beyond the source's local routed subnet. It does not resolve the stated failure mode. For this case, the decisive implementation choice is to verify optic type, fiber reach, polarity and connector compatibility against both switch ports.

Question 170

After implementing the approved change — Verify optic type, fiber reach, polarity and connector compatibility against both switch ports — for this scenario: A fiber uplink between two buildings never reaches operational up state. Which observed result BEST verifies the outcome?

Cameras stay powered through the approved single-feed failure test
The optical link reports stable up state with expected speed and error counters
The uplink negotiates a supported speed and stable error-free link
The switch receives only the approved site policy and is managed in the expected group

Explanation

Correct Answer

The optical link reports stable up state with expected speed and error counters. This is the observable acceptance evidence for the decision to verify optic type, fiber reach, polarity and connector compatibility against both switch ports. It demonstrates the principle that optical physical-layer compatibility is required before logical configuration.

Incorrect Answers

This verification choice fits a different situation: An access closet requires both redundant power and PoE for cameras. It does not resolve the stated failure mode. For this case, the decisive verification choice is to the optical link reports stable up state with expected speed and error counters.

This verification choice fits a different situation: A remote rack has uplink ports but inconsistent link speeds and duplex behavior. It does not resolve the stated failure mode. For this case, the decisive verification choice is to the optical link reports stable up state with expected speed and error counters.

This verification choice fits a different situation: A new AOS-CX switch appears in device inventory but has no intended Central configuration. It does not resolve the stated failure mode. For this case, the decisive verification choice is to the optical link reports stable up state with expected speed and error counters.

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Pass Your HP HPE7-A08 Exam Easy!

Question 160

Explanation

Correct Answer

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Question 161

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Question 162

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Question 163

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Question 164

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Question 165

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Question 166

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Question 167

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Question 168

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Question 169

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Question 170

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HPE Network Switching Professional (HPE7-A08) Practice Tests