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HP HPE7-A08 Practice Test 6

Question 50

A new fiber circuit reports many CRC and light-level events despite matching connector type. Which assessment is relevant?

  1. Diverse fiber path routing
  2. Multi-mode optic suitability
  3. Copper Ethernet reach planning
  4. Optical power and loss budget

Explanation

Correct Answer

D:

Measure receive power and optical attenuation against transceiver limits. Actual fiber loss, connector quality and transceiver receive thresholds determine optical link feasibility.

Incorrect Answers

A:

Separating redundant fiber routes reduces simultaneous physical damage risk. But this does not address the case requirement to verify the end-to-end optical link budget.

B:

Short-building fiber runs can use compatible multi-mode optics within their supported distance. But this does not address the case requirement to verify the end-to-end optical link budget.

C:

Twisted-pair Ethernet has category and distance limits that must be respected for stable links. But this does not address the case requirement to verify the end-to-end optical link budget.

Question 51

Two core uplinks appear redundant but enter the same unprotected trench. Which improvement reduces correlated failure?

  1. Copper Ethernet reach planning
  2. Speed negotiation compatibility
  3. Diverse fiber path routing
  4. Single-mode optical reach selection

Explanation

Correct Answer

C:

Diverse physical routes matter as much as distinct ports. Separating redundant fiber routes reduces simultaneous physical damage risk.

Incorrect Answers

A:

Twisted-pair Ethernet has category and distance limits that must be respected for stable links. But this does not address the case requirement to prevent one excavation from cutting all uplinks.

B:

Both ends and their modules must support a common physical speed and settings. But this does not address the case requirement to prevent one excavation from cutting all uplinks.

D:

Longer fiber paths generally require supported single-mode optics and compatible wavelength at both ends. But this does not address the case requirement to prevent one excavation from cutting all uplinks.

Question 52

A 12-kilometer campus connection is proposed over short-reach multi-mode optics. What type of media decision is more appropriate?

  1. Speed negotiation compatibility
  2. Copper Ethernet reach planning
  3. Single-mode optical reach selection
  4. Multi-mode optic suitability

Explanation

Correct Answer

C:

Reach and fiber type must match long-distance optics. Longer fiber paths generally require supported single-mode optics and compatible wavelength at both ends.

Incorrect Answers

A:

Both ends and their modules must support a common physical speed and settings. But this does not address the case requirement to design optics for the actual long-distance path.

B:

Twisted-pair Ethernet has category and distance limits that must be respected for stable links. But this does not address the case requirement to design optics for the actual long-distance path.

D:

Short-building fiber runs can use compatible multi-mode optics within their supported distance. But this does not address the case requirement to design optics for the actual long-distance path.

Question 53

A technician replaces one optic with a module whose supported speed differs from the peer. Which check comes before VLAN debugging?

  1. Single-mode optical reach selection
  2. Speed negotiation compatibility
  3. Diverse fiber path routing
  4. Multi-mode optic suitability

Explanation

Correct Answer

B:

Physical transceiver and speed compatibility are prerequisites. Both ends and their modules must support a common physical speed and settings.

Incorrect Answers

A:

Longer fiber paths generally require supported single-mode optics and compatible wavelength at both ends. But this does not address the case requirement to restore a working optical Ethernet carrier.

C:

Separating redundant fiber routes reduces simultaneous physical damage risk. But this does not address the case requirement to restore a working optical Ethernet carrier.

D:

Short-building fiber runs can use compatible multi-mode optics within their supported distance. But this does not address the case requirement to restore a working optical Ethernet carrier.

Question 54

After a splice, optical receive power falls below the approved receiver threshold. What should be investigated?

  1. Diverse fiber path routing
  2. Multi-mode optic suitability
  3. Copper Ethernet reach planning
  4. Optical power and loss budget

Explanation

Correct Answer

D:

Loss measurements identify whether the fiber plant meets requirements. Actual fiber loss, connector quality and transceiver receive thresholds determine optical link feasibility.

Incorrect Answers

A:

Separating redundant fiber routes reduces simultaneous physical damage risk. But this does not address the case requirement to reduce attenuation or select appropriate rated optics.

B:

Short-building fiber runs can use compatible multi-mode optics within their supported distance. But this does not address the case requirement to reduce attenuation or select appropriate rated optics.

C:

Twisted-pair Ethernet has category and distance limits that must be respected for stable links. But this does not address the case requirement to reduce attenuation or select appropriate rated optics.

Question 55

A company needs to configure hundreds of compatible access switches using common operational groups. Which approach should lead?

  1. Aruba Central group-based management
  2. Network Analytics Engine telemetry
  3. Out-of-band management reachability
  4. SNMP and event monitoring

Explanation

Correct Answer

A:

Central groups reduce repeated manual configuration for similar devices. Central groups provide cloud-management organization and reusable policy across selected devices.

Incorrect Answers

B:

NAE agents watch operational state and can capture evidence or trigger configured alerts. But this does not address the case requirement to coordinate management across numerous sites.

C:

A separate management path helps retain switch access during data-plane incidents. But this does not address the case requirement to coordinate management across numerous sites.

D:

Counters, traps and logs can feed external operations systems for network visibility. But this does not address the case requirement to coordinate management across numerous sites.

Question 56

An on-call engineer must inspect one physical switch locally during a WAN management outage. What interface remains relevant?

  1. AOS-CX local CLI
  2. AOS-CX REST API programmability
  3. Network Analytics Engine telemetry
  4. Out-of-band management reachability

Explanation

Correct Answer

A:

Direct CLI access offers device-level diagnostics when reachable. CLI gives direct authorized device configuration and detailed operational inspection.

Incorrect Answers

B:

The REST API exposes structured configuration and state interfaces for controlled automation. But this does not address the case requirement to inspect and modify a single authorized device.

C:

NAE agents watch operational state and can capture evidence or trigger configured alerts. But this does not address the case requirement to inspect and modify a single authorized device.

D:

A separate management path helps retain switch access during data-plane incidents. But this does not address the case requirement to inspect and modify a single authorized device.

Question 57

A CI/CD job needs a structured method to query port state and update approved settings. What interface fits?

  1. SNMP and event monitoring
  2. AOS-CX REST API programmability
  3. AOS-CX local CLI
  4. Aruba Central group-based management

Explanation

Correct Answer

B:

REST provides machine-consumable device interfaces. The REST API exposes structured configuration and state interfaces for controlled automation.

Incorrect Answers

A:

Counters, traps and logs can feed external operations systems for network visibility. But this does not address the case requirement to programmatically access AOS-CX configuration or state.

C:

CLI gives direct authorized device configuration and detailed operational inspection. But this does not address the case requirement to programmatically access AOS-CX configuration or state.

D:

Central groups provide cloud-management organization and reusable policy across selected devices. But this does not address the case requirement to programmatically access AOS-CX configuration or state.

Question 58

A switch should capture interface counters around an intermittent alarm before an operator can log in. What feature helps?

  1. Aruba Central group-based management
  2. AOS-CX REST API programmability
  3. Out-of-band management reachability
  4. Network Analytics Engine telemetry

Explanation

Correct Answer

D:

NAE monitors and rules provide on-switch evidence capture. NAE agents watch operational state and can capture evidence or trigger configured alerts.

Incorrect Answers

A:

Central groups provide cloud-management organization and reusable policy across selected devices. But this does not address the case requirement to observe and record state transitions at incident time.

B:

The REST API exposes structured configuration and state interfaces for controlled automation. But this does not address the case requirement to observe and record state transitions at incident time.

C:

A separate management path helps retain switch access during data-plane incidents. But this does not address the case requirement to observe and record state transitions at incident time.

Question 59

A data-plane routing fault isolates user VLANs but a separate management path still works. Which design feature provides this?

  1. Aruba Central group-based management
  2. Network Analytics Engine telemetry
  3. SNMP and event monitoring
  4. Out-of-band management reachability

Explanation

Correct Answer

D:

OOB management reduces dependency on forwarding path. A separate management path helps retain switch access during data-plane incidents.

Incorrect Answers

A:

Central groups provide cloud-management organization and reusable policy across selected devices. But this does not address the case requirement to retain device administration during user traffic disruption.

B:

NAE agents watch operational state and can capture evidence or trigger configured alerts. But this does not address the case requirement to retain device administration during user traffic disruption.

C:

Counters, traps and logs can feed external operations systems for network visibility. But this does not address the case requirement to retain device administration during user traffic disruption.

Question 60

An operations team has a central NMS that expects interface utilization counters and traps. Which integration fits?

  1. Out-of-band management reachability
  2. AOS-CX local CLI
  3. Aruba Central group-based management
  4. SNMP and event monitoring

Explanation

Correct Answer

D:

SNMP and event telemetry provide standard monitoring inputs. Counters, traps and logs can feed external operations systems for network visibility.

Incorrect Answers

A:

A separate management path helps retain switch access during data-plane incidents. But this does not address the case requirement to feed operational counters to the monitoring service.

B:

CLI gives direct authorized device configuration and detailed operational inspection. But this does not address the case requirement to feed operational counters to the monitoring service.

C:

Central groups provide cloud-management organization and reusable policy across selected devices. But this does not address the case requirement to feed operational counters to the monitoring service.

HPE Network Switching Professional (HPE7-A08) Practice Tests

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