Question 80
At Dunhaven University, the campus systems team is preparing a multi-building classroom network upgrade. The operational constraint is classroom Wi-Fi and VoIP availability. The owner reports that the correction is complete for this issue: Two upstream switches are intended to provide redundancy but the design never chooses VSX, routing or STP behavior. Which result BEST demonstrates that this specific issue was resolved?
Explanation
Correct Answer
The topology validation confirms failover and gateway availability consistent with the selected architecture. This is the relevant acceptance observation for the reported issue: Two upstream switches are intended to provide redundancy but the design never chooses VSX, routing or STP behavior. The intended corrective choice is: Choose a supported redundancy model and explicitly document control-plane, gateway and loop-prevention behavior. At Dunhaven University, this outcome verifies actual operation under classroom Wi-Fi and VoIP availability, rather than only a ticket marked complete.
Incorrect Answers
An inventory and startup test stay within the documented total PoE budget and per-port limits. Such an observation would verify a separate issue: An implementation plan budgets enough PoE for average device load but not the concurrent worst-case startup draw. It would follow the distinct action: Calculate worst-case PoE power and power-supply headroom per chassis and switch. Here the reported failure is Two upstream switches are intended to provide redundancy but the design never chooses VSX, routing or STP behavior. The decisive result for Dunhaven University must instead be: The topology validation confirms failover and gateway availability consistent with the selected architecture.
A link-failure test retains the required campus reachability without creating Layer 2 loops. Such an observation would verify a separate issue: The network has two data rooms and the plan provides only one unprotected uplink from each access layer. It would follow the distinct action: Specify redundant uplinks and an appropriate loop-safe high-availability topology for each failure domain. Here the reported failure is Two upstream switches are intended to provide redundancy but the design never chooses VSX, routing or STP behavior. The decisive result for Dunhaven University must instead be: The topology validation confirms failover and gateway availability consistent with the selected architecture.
The rehearsal records baseline state, acceptance results and a tested rollback path for the cutover. Such an observation would verify a separate issue: A change window has no prechange baseline, acceptance tests or rollback criterion for a core switch replacement. It would follow the distinct action: Document prechecks, precise implementation order, success thresholds and a timed rollback decision. Here the reported failure is Two upstream switches are intended to provide redundancy but the design never chooses VSX, routing or STP behavior. The decisive result for Dunhaven University must instead be: The topology validation confirms failover and gateway availability consistent with the selected architecture.