A water utility places control-plane and etcd members for an HA cluster. Which placement practice improves failure tolerance?
Select an answer to reveal the explanation.
Short Explanation
If all the brains sit on one rack, one power blip takes the whole government offline. Spread control-plane and etcd members across racks or zones so one failure domain can’t sink quorum. HA math fails if correlated fate shares a power strip.
Full Explanation
Failure-domain diversity keeps a single rack, AZ, or host outage from eliminating etcd quorum or all apiservers at once. Spreading members is a standard HA placement practice alongside odd quorum sizes and a stable controlPlaneEndpoint. Collocation recreates a logical SPOF despite multiple process replicas.