Question 940
At a manufacturing complex in Detroit, engineers report that an application is correctly marked at ingress but the WAN handoff rewrites all traffic to best effort. The work affects production and maintenance endpoints. Which test result most directly confirms the required behavior?
Explanation
Correct Answer
This observation tests the QoS classification and DSCP trust boundaries requirement at a manufacturing complex in Detroit. The expected result is that packet markings and egress queue counters match the intended service policy without trusting arbitrary untrusted endpoint marks. The necessary correction is to classify and trust or remark traffic at a documented boundary so approved voice and business applications enter the intended QoS classes; a saved configuration alone would not prove it is working. In this case, the observed fault is that an application is correctly marked at ingress but the WAN handoff rewrites all traffic to best effort.
Incorrect Answers
At a manufacturing complex in Detroit, this measures a different network requirement, Wireless coverage versus capacity and roaming tuning. The case describes that an application is correctly marked at ingress but the WAN handoff rewrites all traffic to best effort, so accepting this result would leave the primary fault without direct verification.
At a manufacturing complex in Detroit, the observation may be useful for a separate Wi-Fi airtime efficiency and data rates test, but it does not establish that an application is correctly marked at ingress but the WAN handoff rewrites all traffic to best effort has been resolved. The relevant check is the QoS classification and DSCP trust boundaries outcome.
At a manufacturing complex in Detroit, this measures a different network requirement, Queue scheduling and congested egress. The case describes that an application is correctly marked at ingress but the WAN handoff rewrites all traffic to best effort, so accepting this result would leave the primary fault without direct verification.