HP HPE7-A08 Practice Test 52

Question 510

An implementation change is planned for: Voice calls drop briefly whenever a distribution link flaps. Which preventive control BEST reduces unnecessary outage and security risk?

Capacity-plan using measured traffic mix rather than theoretical link sum
Test planned failure convergence before changing topology
Define monitoring resource thresholds and alert correlation
Set capacity and drop thresholds for priority applications

Explanation

Correct Answer

Test planned failure convergence before changing topology. This safeguard is appropriate before the change to investigate spanning-tree reconvergence and redundancy path selection; it reduces exposure to the mistake of focusing only on average bandwidth while ignoring reconvergence.

Incorrect Answers

This prevention choice fits a different situation: Traffic across an ECMP routed core concentrates on one path during busy hours. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to test planned failure convergence before changing topology.

This prevention choice fits a different situation: Switch CPU usage spikes periodically while network links remain otherwise stable. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to test planned failure convergence before changing topology.

This prevention choice fits a different situation: Video traffic suffers delay only when backups saturate an interbuilding uplink. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to test planned failure convergence before changing topology.

Question 511

A first repair attempt for this situation failed: Voice calls drop briefly whenever a distribution link flaps. The review found the mistaken approach of focusing only on average bandwidth while ignoring reconvergence. Which targeted recovery action BEST restores the intended design?

Correct the unstable link and STP root/path design
Correct route eligibility or adjust supported hash policy after validation
Align MTU on relevant links or use a compatible packet size
Replace failed media and validate a clean counter interval

Explanation

Correct Answer

Correct the unstable link and STP root/path design. This addresses the observed risk rather than hiding its symptoms. Confirm the repair when the link transition no longer causes long user outages under test.

Incorrect Answers

This remediation choice fits a different situation: Traffic across an ECMP routed core concentrates on one path during busy hours. It does not resolve the stated failure mode. For this case, the decisive remediation choice is to correct the unstable link and STP root/path design.

This remediation choice fits a different situation: A backup application succeeds with small packets but larger transfers stall. It does not resolve the stated failure mode. For this case, the decisive remediation choice is to correct the unstable link and STP root/path design.

This remediation choice fits a different situation: A network interface experiences high frame errors at peak load but no routing alarms. It does not resolve the stated failure mode. For this case, the decisive remediation choice is to correct the unstable link and STP root/path design.

Question 512

An HPE Aruba Networking engineer faces this wired-network scenario: A multicast feed overwhelms user ports that did not subscribe to its group. Which implementation action BEST addresses the requirement?

Investigate spanning-tree reconvergence and redundancy path selection
Inspect IGMP snooping and querier state for unnecessary multicast flooding
Correlate CPU spikes with control-plane events or a running analytics script
Investigate total PoE budget and allocation events at the switch

Explanation

Correct Answer

Multicast flooding can be a membership-control issue rather than bandwidth shortage. The targeted implementation is to inspect IGMP snooping and querier state for unnecessary multicast flooding. The deployment succeeds when unsubscribed ports stop receiving the stream when group control works.

Incorrect Answers

This implementation choice fits a different situation: Voice calls drop briefly whenever a distribution link flaps. It does not resolve the stated failure mode. For this case, the decisive implementation choice is to inspect IGMP snooping and querier state for unnecessary multicast flooding.

This implementation choice fits a different situation: Switch CPU usage spikes periodically while network links remain otherwise stable. It does not resolve the stated failure mode. For this case, the decisive implementation choice is to inspect IGMP snooping and querier state for unnecessary multicast flooding.

This implementation choice fits a different situation: Some PoE cameras reboot during heavy utilization although data ports stay up. It does not resolve the stated failure mode. For this case, the decisive implementation choice is to inspect IGMP snooping and querier state for unnecessary multicast flooding.

Question 513

After implementing the approved change — Inspect IGMP snooping and querier state for unnecessary multicast flooding — for this scenario: A multicast feed overwhelms user ports that did not subscribe to its group. Which observed result BEST verifies the outcome?

The link transition no longer causes long user outages under test
Expected path usage matches the selected hash and routing behavior after tuning
Identified event timing explains the load without blanket service shutdown
Unsubscribed ports stop receiving the stream when group control works

Explanation

Correct Answer

Unsubscribed ports stop receiving the stream when group control works. This is the observable acceptance evidence for the decision to inspect IGMP snooping and querier state for unnecessary multicast flooding. It demonstrates the principle that multicast flooding can be a membership-control issue rather than bandwidth shortage.

Incorrect Answers

This verification choice fits a different situation: Voice calls drop briefly whenever a distribution link flaps. It does not resolve the stated failure mode. For this case, the decisive verification choice is to unsubscribed ports stop receiving the stream when group control works.

This verification choice fits a different situation: Traffic across an ECMP routed core concentrates on one path during busy hours. It does not resolve the stated failure mode. For this case, the decisive verification choice is to unsubscribed ports stop receiving the stream when group control works.

This verification choice fits a different situation: Switch CPU usage spikes periodically while network links remain otherwise stable. It does not resolve the stated failure mode. For this case, the decisive verification choice is to unsubscribed ports stop receiving the stream when group control works.

Question 514

An HPE Aruba Networking design review examines: A multicast feed overwhelms user ports that did not subscribe to its group. Which technical principle BEST explains the required approach?

An uncontrolled L2 loop can amplify broadcast traffic exponentially
Multicast flooding can be a membership-control issue rather than bandwidth shortage
ECMP load sharing is flow-based and may not evenly split every single flow
Frame integrity errors often reveal physical problems rather than route policy

Explanation

Correct Answer

Multicast flooding can be a membership-control issue rather than bandwidth shortage. The case therefore calls for this specifically controlled action: inspect IGMP snooping and querier state for unnecessary multicast flooding. The acceptance evidence is that unsubscribed ports stop receiving the stream when group control works.

Incorrect Answers

This principle choice fits a different situation: Many ports report broadcast storms immediately after a cross-connect is added. It does not resolve the stated failure mode. For this case, the decisive principle choice is to multicast flooding can be a membership-control issue rather than bandwidth shortage.

This principle choice fits a different situation: Traffic across an ECMP routed core concentrates on one path during busy hours. It does not resolve the stated failure mode. For this case, the decisive principle choice is to multicast flooding can be a membership-control issue rather than bandwidth shortage.

This principle choice fits a different situation: A network interface experiences high frame errors at peak load but no routing alarms. It does not resolve the stated failure mode. For this case, the decisive principle choice is to multicast flooding can be a membership-control issue rather than bandwidth shortage.

Question 515

A risk review for the following wired-network case asks what should be avoided: A multicast feed overwhelms user ports that did not subscribe to its group. Which assumption creates the GREATEST implementation risk?

Increasing QoS priority to hide a damaged fiber link
Assuming small successful pings prove every packet size will pass
Claiming a single large flow must always divide evenly across all paths
Turning off all multicast routing to stop one flooded VLAN

Explanation

Correct Answer

Turning off all multicast routing to stop one flooded VLAN. That shortcut fails because multicast flooding can be a membership-control issue rather than bandwidth shortage. Instead, the appropriate approach is to inspect IGMP snooping and querier state for unnecessary multicast flooding.

Incorrect Answers

This misconception choice fits a different situation: A network interface experiences high frame errors at peak load but no routing alarms. It does not resolve the stated failure mode. For this case, the decisive misconception choice is to turning off all multicast routing to stop one flooded VLAN.

This misconception choice fits a different situation: A backup application succeeds with small packets but larger transfers stall. It does not resolve the stated failure mode. For this case, the decisive misconception choice is to turning off all multicast routing to stop one flooded VLAN.

This misconception choice fits a different situation: Traffic across an ECMP routed core concentrates on one path during busy hours. It does not resolve the stated failure mode. For this case, the decisive misconception choice is to turning off all multicast routing to stop one flooded VLAN.

Question 516

Before changing switch configuration, an engineer investigates: A multicast feed overwhelms user ports that did not subscribe to its group. Which FIRST check is most useful for isolating the cause?

Inspect routing table equal-cost entries, flow keys and interface rates
Compare group tables, VLAN scope and multicast port counters
Review CPU telemetry, process logs and NAE agent event times
Review interface FCS counters, optics power and cable plant results

Explanation

Correct Answer

Compare group tables, VLAN scope and multicast port counters. This first check isolates the relevant mechanism without an untested configuration change. It tests the rule that multicast flooding can be a membership-control issue rather than bandwidth shortage.

Incorrect Answers

This diagnostic choice fits a different situation: Traffic across an ECMP routed core concentrates on one path during busy hours. It does not resolve the stated failure mode. For this case, the decisive diagnostic choice is to compare group tables, VLAN scope and multicast port counters.

This diagnostic choice fits a different situation: Switch CPU usage spikes periodically while network links remain otherwise stable. It does not resolve the stated failure mode. For this case, the decisive diagnostic choice is to compare group tables, VLAN scope and multicast port counters.

This diagnostic choice fits a different situation: A network interface experiences high frame errors at peak load but no routing alarms. It does not resolve the stated failure mode. For this case, the decisive diagnostic choice is to compare group tables, VLAN scope and multicast port counters.

Question 517

An implementation change is planned for: A multicast feed overwhelms user ports that did not subscribe to its group. Which preventive control BEST reduces unnecessary outage and security risk?

Set capacity and drop thresholds for priority applications
Use BPDU guard and root design where appropriate
Test planned failure convergence before changing topology
Plan querier reachability and membership aging tests

Explanation

Correct Answer

Plan querier reachability and membership aging tests. This safeguard is appropriate before the change to inspect IGMP snooping and querier state for unnecessary multicast flooding; it reduces exposure to the mistake of turning off all multicast routing to stop one flooded VLAN.

Incorrect Answers

This prevention choice fits a different situation: Video traffic suffers delay only when backups saturate an interbuilding uplink. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to plan querier reachability and membership aging tests.

This prevention choice fits a different situation: Many ports report broadcast storms immediately after a cross-connect is added. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to plan querier reachability and membership aging tests.

This prevention choice fits a different situation: Voice calls drop briefly whenever a distribution link flaps. It does not resolve the stated failure mode. For this case, the decisive prevention choice is to plan querier reachability and membership aging tests.

Question 518

A first repair attempt for this situation failed: A multicast feed overwhelms user ports that did not subscribe to its group. The review found the mistaken approach of turning off all multicast routing to stop one flooded VLAN. Which targeted recovery action BEST restores the intended design?

Reduce PoE load or upgrade supported supply capacity and retest
Correct the unstable link and STP root/path design
Restore the querier or snooping configuration and validate group joins
Align MTU on relevant links or use a compatible packet size

Explanation

Correct Answer

Restore the querier or snooping configuration and validate group joins. This addresses the observed risk rather than hiding its symptoms. Confirm the repair when unsubscribed ports stop receiving the stream when group control works.

Incorrect Answers

This remediation choice fits a different situation: Some PoE cameras reboot during heavy utilization although data ports stay up. It does not resolve the stated failure mode. For this case, the decisive remediation choice is to restore the querier or snooping configuration and validate group joins.

This remediation choice fits a different situation: Voice calls drop briefly whenever a distribution link flaps. It does not resolve the stated failure mode. For this case, the decisive remediation choice is to restore the querier or snooping configuration and validate group joins.

This remediation choice fits a different situation: A backup application succeeds with small packets but larger transfers stall. It does not resolve the stated failure mode. For this case, the decisive remediation choice is to restore the querier or snooping configuration and validate group joins.

Question 519

An HPE Aruba Networking engineer faces this wired-network scenario: Switch CPU usage spikes periodically while network links remain otherwise stable. Which implementation action BEST addresses the requirement?

Trace and isolate a Layer 2 loop and review STP protection settings
Investigate spanning-tree reconvergence and redundancy path selection
Diagnose queue congestion and class scheduling before adding more routing changes
Correlate CPU spikes with control-plane events or a running analytics script

Explanation

Correct Answer

Control-plane workload and automation can affect performance independently of line rate. The targeted implementation is to correlate CPU spikes with control-plane events or a running analytics script. The deployment succeeds when identified event timing explains the load without blanket service shutdown.

Incorrect Answers

This implementation choice fits a different situation: Many ports report broadcast storms immediately after a cross-connect is added. It does not resolve the stated failure mode. For this case, the decisive implementation choice is to correlate CPU spikes with control-plane events or a running analytics script.

This implementation choice fits a different situation: Voice calls drop briefly whenever a distribution link flaps. It does not resolve the stated failure mode. For this case, the decisive implementation choice is to correlate CPU spikes with control-plane events or a running analytics script.

This implementation choice fits a different situation: Video traffic suffers delay only when backups saturate an interbuilding uplink. It does not resolve the stated failure mode. For this case, the decisive implementation choice is to correlate CPU spikes with control-plane events or a running analytics script.

Question 520

After implementing the approved change — Correlate CPU spikes with control-plane events or a running analytics script — for this scenario: Switch CPU usage spikes periodically while network links remain otherwise stable. Which observed result BEST verifies the outcome?

The link transition no longer causes long user outages under test
Identified event timing explains the load without blanket service shutdown
Replacing faulty media reduces CRC errors under repeatable traffic load
Expected path usage matches the selected hash and routing behavior after tuning

Explanation

Correct Answer

Identified event timing explains the load without blanket service shutdown. This is the observable acceptance evidence for the decision to correlate CPU spikes with control-plane events or a running analytics script. It demonstrates the principle that control-plane workload and automation can affect performance independently of line rate.

Incorrect Answers

This verification choice fits a different situation: Voice calls drop briefly whenever a distribution link flaps. It does not resolve the stated failure mode. For this case, the decisive verification choice is to identified event timing explains the load without blanket service shutdown.

This verification choice fits a different situation: A network interface experiences high frame errors at peak load but no routing alarms. It does not resolve the stated failure mode. For this case, the decisive verification choice is to identified event timing explains the load without blanket service shutdown.

This verification choice fits a different situation: Traffic across an ECMP routed core concentrates on one path during busy hours. It does not resolve the stated failure mode. For this case, the decisive verification choice is to identified event timing explains the load without blanket service shutdown.

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Pass Your HP HPE7-A08 Exam Easy!

Question 510

Explanation

Correct Answer

Incorrect Answers

Question 511

Explanation

Correct Answer

Incorrect Answers

Question 512

Explanation

Correct Answer

Incorrect Answers

Question 513

Explanation

Correct Answer

Incorrect Answers

Question 514

Explanation

Correct Answer

Incorrect Answers

Question 515

Explanation

Correct Answer

Incorrect Answers

Question 516

Explanation

Correct Answer

Incorrect Answers

Question 517

Explanation

Correct Answer

Incorrect Answers

Question 518

Explanation

Correct Answer

Incorrect Answers

Question 519

Explanation

Correct Answer

Incorrect Answers

Question 520

Explanation

Correct Answer

Incorrect Answers

HPE Network Switching Professional (HPE7-A08) Practice Tests