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CKA study material · question 245 of 1000

Why is it recommended to name kube-proxy's mode explicitly in its configuration?

  1. Because kube-proxy will not start without it
  2. Because the default mode is unsupported
  3. So an upgrade does not silently change the proxy backend
  4. Because the mode must match the CNI plugin
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Answer: C. So an upgrade does not silently change the proxy backend

A future release changes the default, so pinning the mode stops an upgrade swapping the backend unexpectedly.

Source: Virtual IPs and Service Proxies (Kubernetes) — Proxy modes

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