100% Latest & Updated HP HPE7-A08 Practice Test Questions, Exam Dumps & Verified Answers!
30 Days Free Updates, Instant Download!
Question 410
Users report jitter although link utilization appears moderate, and one egress queue shows rising discards. What should be monitored?
- End-to-end QoS trust consistency
- Queue drop and utilization monitoring
- Weighted deficit round robin
- Traffic policing
Explanation
Correct Answer
B:Per-queue drops can identify congestion hidden by interface averages. Queue counters reveal congestion, egress drops and classes experiencing loss.
Incorrect Answers
A:QoS treatment must remain coherent across transit devices and trust boundaries. But this does not address the case requirement to find the class experiencing packet loss.
C:Weighted scheduling distributes egress service among classes according to configured weights. But this does not address the case requirement to find the class experiencing packet loss.
D:Policing enforces a traffic rate and can drop or remark nonconforming packets. But this does not address the case requirement to find the class experiencing packet loss.
Question 411
Voice DSCP is preserved at access but rewritten at a transit peer. What architecture detail must be consistent?
- Queue drop and utilization monitoring
- End-to-end QoS trust consistency
- Weighted deficit round robin
- Traffic shaping
Explanation
Correct Answer
B:QoS markings and trust should be assessed end-to-end. QoS treatment must remain coherent across transit devices and trust boundaries.
Incorrect Answers
A:Queue counters reveal congestion, egress drops and classes experiencing loss. But this does not address the case requirement to preserve appropriate class semantics across hops.
C:Weighted scheduling distributes egress service among classes according to configured weights. But this does not address the case requirement to preserve appropriate class semantics across hops.
D:Shaping buffers and smooths traffic toward a configured rate rather than simply dropping every excess burst. But this does not address the case requirement to preserve appropriate class semantics across hops.
Question 412
A strict queue dominates all traffic, starving best effort during load. What tuning risk appears?
- Queue drop and utilization monitoring
- End-to-end QoS trust consistency
- Traffic shaping
- Strict-priority queue treatment
Explanation
Correct Answer
D:Priority scheduling must be bounded so other traffic can progress. Strict scheduling services a preferred queue ahead of lower priorities and must be sized to avoid starvation.
Incorrect Answers
A:Queue counters reveal congestion, egress drops and classes experiencing loss. But this does not address the case requirement to use strict priority without indefinite starvation.
B:QoS treatment must remain coherent across transit devices and trust boundaries. But this does not address the case requirement to use strict priority without indefinite starvation.
C:Shaping buffers and smooths traffic toward a configured rate rather than simply dropping every excess burst. But this does not address the case requirement to use strict priority without indefinite starvation.
Question 413
An uplink contract demands dropping nonconforming data immediately, not buffering it for later. Which action matches?
- End-to-end QoS trust consistency
- Queue drop and utilization monitoring
- Traffic shaping
- Traffic policing
Explanation
Correct Answer
D:A policing function discards or remarks excess traffic. Policing enforces a traffic rate and can drop or remark nonconforming packets.
Incorrect Answers
A:QoS treatment must remain coherent across transit devices and trust boundaries. But this does not address the case requirement to enforce a hard service-rate policy.
B:Queue counters reveal congestion, egress drops and classes experiencing loss. But this does not address the case requirement to enforce a hard service-rate policy.
C:Shaping buffers and smooths traffic toward a configured rate rather than simply dropping every excess burst. But this does not address the case requirement to enforce a hard service-rate policy.
Question 414
Application delays coincide with rising drops on queue 3 but not queue 1. Which evidence should guide remediation?
- Strict-priority queue treatment
- End-to-end QoS trust consistency
- Queue drop and utilization monitoring
- Traffic policing
Explanation
Correct Answer
C:Queue-specific counters localize class congestion. Queue counters reveal congestion, egress drops and classes experiencing loss.
Incorrect Answers
A:Strict scheduling services a preferred queue ahead of lower priorities and must be sized to avoid starvation. But this does not address the case requirement to find the congested traffic class.
B:QoS treatment must remain coherent across transit devices and trust boundaries. But this does not address the case requirement to find the congested traffic class.
D:Policing enforces a traffic rate and can drop or remark nonconforming packets. But this does not address the case requirement to find the congested traffic class.
Question 415
VoIP traffic arrives as DSCP EF but downstream captures show best-effort marking. What should be verified?
- Egress queue counters
- Interface rate and microburst analysis
- Trust boundary and re-mark rule inspection
- Voice class DSCP verification
Explanation
Correct Answer
D:Check the end-to-end marking behavior of the voice class. Confirm approved voice marking is preserved between ingress and egress.
Incorrect Answers
A:Per-queue packet and drop statistics show scheduling and congestion outcomes. But this does not address the case requirement to confirm DSCP remains appropriate across the path.
B:Short bursts can overload queues even when averages look low. But this does not address the case requirement to confirm DSCP remains appropriate across the path.
C:Identify where a marking was overwritten or not trusted along the path. But this does not address the case requirement to confirm DSCP remains appropriate across the path.
Question 416
A core port is under load and QoS counters show drops only in one video queue. What diagnostic evidence is most relevant?
- Voice class DSCP verification
- Egress queue counters
- Trust boundary and re-mark rule inspection
- Application-level delay and loss testing
Explanation
Correct Answer
B:Queue statistics identify where congestion affects a class. Per-queue packet and drop statistics show scheduling and congestion outcomes.
Incorrect Answers
A:Confirm approved voice marking is preserved between ingress and egress. But this does not address the case requirement to localize egress drops per queue.
C:Identify where a marking was overwritten or not trusted along the path. But this does not address the case requirement to localize egress drops per queue.
D:Voice quality requires observed loss, delay and jitter, not only switch configuration checks. But this does not address the case requirement to localize egress drops per queue.
Question 417
Voice traffic loses priority after an access-uplink transition. What configuration area may be rewriting it?
- Interface rate and microburst analysis
- Voice class DSCP verification
- Trust boundary and re-mark rule inspection
- Application-level delay and loss testing
Explanation
Correct Answer
C:Trust and remarking boundaries can alter class treatment. Identify where a marking was overwritten or not trusted along the path.
Incorrect Answers
A:Short bursts can overload queues even when averages look low. But this does not address the case requirement to locate where packets were reclassified.
B:Confirm approved voice marking is preserved between ingress and egress. But this does not address the case requirement to locate where packets were reclassified.
D:Voice quality requires observed loss, delay and jitter, not only switch configuration checks. But this does not address the case requirement to locate where packets were reclassified.
Question 418
Average WAN utilization reads 25% yet customers hear clipped audio during brief backups. What measurement should be increased?
- QoS policy and schedule comparison
- Trust boundary and re-mark rule inspection
- Egress queue counters
- Interface rate and microburst analysis
Explanation
Correct Answer
D:Fine-grained burst visibility catches transient congestion. Short bursts can overload queues even when averages look low.
Incorrect Answers
A:Compare intended class maps, queue profiles and schedules with applied interface state. But this does not address the case requirement to detect microbursts hidden by averages.
B:Identify where a marking was overwritten or not trusted along the path. But this does not address the case requirement to detect microbursts hidden by averages.
C:Per-queue packet and drop statistics show scheduling and congestion outcomes. But this does not address the case requirement to detect microbursts hidden by averages.
Question 419
Two switches have identical DSCP markings but different queue scheduling for the same class. What comparison is needed?
- Application-level delay and loss testing
- Interface rate and microburst analysis
- Voice class DSCP verification
- QoS policy and schedule comparison
Explanation
Correct Answer
D:Applied queue and schedule profiles determine actual service. Compare intended class maps, queue profiles and schedules with applied interface state.
Incorrect Answers
A:Voice quality requires observed loss, delay and jitter, not only switch configuration checks. But this does not address the case requirement to align effective QoS treatment across devices.
B:Short bursts can overload queues even when averages look low. But this does not address the case requirement to align effective QoS treatment across devices.
C:Confirm approved voice marking is preserved between ingress and egress. But this does not address the case requirement to align effective QoS treatment across devices.
Question 420
A help desk declares the voice service healthy merely because DSCP EF is configured. What real-world test should follow?
- Interface rate and microburst analysis
- Trust boundary and re-mark rule inspection
- Application-level delay and loss testing
- Voice class DSCP verification
Explanation
Correct Answer
C:End-to-end delay, loss and jitter prove service quality. Voice quality requires observed loss, delay and jitter, not only switch configuration checks.
Incorrect Answers
A:Short bursts can overload queues even when averages look low. But this does not address the case requirement to validate application outcomes, not only marking.
B:Identify where a marking was overwritten or not trusted along the path. But this does not address the case requirement to validate application outcomes, not only marking.
D:Confirm approved voice marking is preserved between ingress and egress. But this does not address the case requirement to validate application outcomes, not only marking.
HPE Network Switching Professional (HPE7-A08) Practice Tests