A cached Cisco controller inventory has exceeded its freshness lifetime and was stored with must-revalidate. What must the consumer do before serving it?
Select an answer to reveal the explanation.
Short Explanation
Expired milk does not become safe because you are in a hurry. Once freshness ends, must-revalidate means check with the origin before serving—speed is not an excuse to hand out stale inventory.
Full Explanation
must-revalidate forbids using a stale cached response without a successful validation exchange with the origin after freshness expires. Serving expired controller inventory solely to reduce latency violates the directive and can drive automation from outdated state.