Question 320
Before changing switch configuration, an engineer investigates: A WAN uplink congests and video packets starve critical control traffic. Which FIRST check is most useful for isolating the cause?
Explanation
Correct Answer
Inspect queue-depth, drop counters and applied scheduling profiles. This first check isolates the relevant mechanism without an untested configuration change. It tests the rule that egress scheduling shares limited bandwidth among classes.
Incorrect Answers
This diagnostic 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 diagnostic choice is to inspect queue-depth, drop counters and applied scheduling profiles.
This diagnostic choice fits a different situation: Voice traffic marked at a trusted phone should retain priority over bulk backups. It does not resolve the stated failure mode. For this case, the decisive diagnostic choice is to inspect queue-depth, drop counters and applied scheduling profiles.
This diagnostic 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 diagnostic choice is to inspect queue-depth, drop counters and applied scheduling profiles.





HPE Network Switching Professional (HPE7-A08) Practice Tests