County assessor IT wants to refresh top-of-rack switches without redesigning every agency VLAN. Which SDDC idea should the candidate identify?
Select an answer to reveal the explanation.
Short Explanation
Refresh the closet switches without redrawing every agency map. The overlay is the map; the underlay is just the road. Swap the road, keep the map.
Full Explanation
An SDDC overlay decouples virtual network topology from a specific physical switch and VLAN layout, so a ToR refresh need not redesign every tenant network. Assessor agency segments stay software objects while the underlay is replaced. Binding agency networks to serial numbers or ports, or requiring Horizon first, is the coupling that refresh should not force.