A school-district change window is shortened after a VLAN mistake is found early. Which tool most likely exposed that Spectrum configuration issue before production?
Select an answer to reveal the explanation.
Short Explanation
You catch a VLAN mistake before it bites the live change window by testing in NVIDIA Air first. It's the pre-production Spectrum sandbox, so you shrink the shortened window instead of discovering the mistake during the real cutover.
Full Explanation
When a school-district change window is shortened after a VLAN mistake is found early, the tool that most likely exposed that Spectrum configuration issue before production is NVIDIA Air used as the pre-production simulation. Air’s purpose in this exam context is to identify Spectrum configuration issues—including VLAN/EVPN mismatches—before they consume a live maintenance window. Finding the VLAN mistake in the twin compresses the school-district change window because rework happens offline, not during production cutover.
NVIDIA NetQ, used for live telemetry to monitor current Spectrum fabric health trends, fails by concept: it observes the live fabric rather than pre-production, so it cannot catch the mistake before the shortened change window. Cumulus Linux console, used in production to audit current live Spectrum VLAN state, fails because it operates on the live production fabric rather than validating the configuration in a pre-production twin. EVPN VXLAN overlay, used directly on production Spectrum switches to propagate live VLAN updates, fails—it pushes control plane changes to live switches instead of proving tenant and VLAN correctness in the twin first.
Exam caveat: Air found the issue early only if the lab/twin config matched what was about to be pushed; divergent golden configs can still let errors reach production. Operational check: keep the school-district Spectrum-X design synchronized in NVIDIA Air, run pre-window validation of VLAN-to-tenant mappings there, fix mistakes in the twin first, then push the corrected config during the shortened window with logging and NetQ still enabled.