Question 140
At Keystone Research, the laboratory platform group is preparing a research campus upgrade. The operational constraint is evidence-based change approval. After a proposed fix, the team needs observable evidence that it resolved: A technician changes the wrong numbered port because the physical labeling does not match the interface identifier. Which result BEST demonstrates that this specific issue was resolved?
Explanation
Correct Answer
The post-change interface description and state match the physical jack recorded in the work order. This is the relevant acceptance observation for the reported issue: A technician changes the wrong numbered port because the physical labeling does not match the interface identifier. The intended corrective choice is: Use show interface inventory/status output to map chassis, member and port identifiers before editing. At Keystone Research, this outcome verifies actual operation under evidence-based change approval, rather than only a ticket marked complete.
Incorrect Answers
The checkpoint exists and a lab rollback restores the previously known configuration. Such an observation would verify a separate issue: A configuration operator applies a complex change with no reversible checkpoint. It would follow the distinct action: Create a supported configuration checkpoint and verify the rollback procedure before modifying production. Here the reported failure is A technician changes the wrong numbered port because the physical labeling does not match the interface identifier. The decisive result for Keystone Research must instead be: The post-change interface description and state match the physical jack recorded in the work order.
After a controlled reboot, the switch retains the approved VLAN and interface settings. Such an observation would verify a separate issue: A migration plan records only running-config and cannot explain which settings survive an unexpected reboot. It would follow the distinct action: Inspect running and startup configuration and explicitly persist approved changes using supported AOS-CX procedures. Here the reported failure is A technician changes the wrong numbered port because the physical labeling does not match the interface identifier. The decisive result for Keystone Research must instead be: The post-change interface description and state match the physical jack recorded in the work order.
The intended interface attributes appear under that interface in running configuration after execution. Such an observation would verify a separate issue: An engineer enters interface commands at the privileged EXEC prompt and receives syntax/context errors. It would follow the distinct action: Enter the appropriate configuration mode and interface context before applying interface-specific AOS-CX changes. Here the reported failure is A technician changes the wrong numbered port because the physical labeling does not match the interface identifier. The decisive result for Keystone Research must instead be: The post-change interface description and state match the physical jack recorded in the work order.