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CKA study material · question 462 of 1000

What etcd cluster size is recommended for production Kubernetes at any supported scale?

  1. A seven-member cluster
  2. A static five-member cluster
  3. A three-member cluster with autoscaling
  4. One member per control-plane node, unbounded
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Answer: B. A static five-member cluster

The recommendation is a static five-member etcd cluster, and auto scaling groups are warned against.

Source: Operating etcd clusters for Kubernetes (Kubernetes) — Scaling out etcd clusters

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