hard20 pts · first answer countskubernetesreliability

All replicas landed in one zone

A zone outage took down a service with 6 replicas because all of them were in the same zone. How do you prevent this in Kubernetes?

A.Raise replicas to 12, so that by chance some of them are likely to land in the other zones.B.Add topologySpreadConstraints on the zone label with a small maxSkew and capacity in each zone.C.Use a nodeSelector that pins every replica to the zone with the most free node capacity and lowest latency.D.Switch the service from a Deployment to a DaemonSet so that a copy runs on every node.

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