SRE wisdom: alert on USER-VISIBLE SYMPTOMS, not on every internal
metric. Which alert is the BEST candidate to wake an on-call engineer?
A) "CPU usage on api-pod-7 is above 70%."
B) "Error rate of /checkout exceeded 5% over the last 5 minutes" (an
SLO-burn alert tied to user impact).
C) "A new container image was pushed."
D) "Disk on a worker node has 60% used."Sign in to save your code and track progress across devices.
