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CKA study material · question 569 of 1000

Which two kubeadm ClusterConfiguration fields change how long its certificates remain valid? Choose two.

  1. certificateValidityPeriod
  2. encryptionAlgorithm
  3. caCertificateValidityPeriod
  4. certificatesDir
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Answer: A. certificateValidityPeriod
C. caCertificateValidityPeriod

Leaf certificates default to a year and the CA to ten years, adjusted through certificateValidityPeriod and caCertificateValidityPeriod. encryptionAlgorithm picks the key type and certificatesDir the location.

Source: Certificate Management with kubeadm (Kubernetes) — Choosing certificate validity period

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