Question 530
Before changing switch configuration, an engineer investigates: A backup application succeeds with small packets but larger transfers stall. Which FIRST check is most useful for isolating the cause?
Explanation
Correct Answer
Test representative packet sizes and inspect interface MTU values. This first check isolates the relevant mechanism without an untested configuration change. It tests the rule that mTU mismatch can break selected flows while basic pings still work.
Incorrect Answers
This diagnostic choice fits a different situation: A multicast feed overwhelms user ports that did not subscribe to its group. It does not resolve the stated failure mode. For this case, the decisive diagnostic choice is to test representative packet sizes and inspect interface MTU values.
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 test representative packet sizes and inspect interface MTU values.
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 test representative packet sizes and inspect interface MTU values.





HPE Network Switching Professional (HPE7-A08) Practice Tests