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CKA study material · question 728 of 1000

An operator is choosing a kube-proxy mode for a new Linux cluster and is considering ipvs. What is the current guidance?

  1. ipvs is deprecated, and nftables is recommended in its place
  2. ipvs is the default and should be kept
  3. ipvs is required for clusters above 1000 Services
  4. ipvs is the only mode that supports session affinity
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Answer: A. ipvs is deprecated, and nftables is recommended in its place

The ipvs mode is deprecated because the kernel IPVS API never fitted all the edge cases of the Service API; nftables replaces both it and iptables mode with better performance.

Source: Virtual IPs and Service Proxies (Kubernetes) — Proxy modes › IPVS proxy mode

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