KCNA Question #55: Real Exam Question with Answer & Explanation

Question

Which of the following options includes valid API versions?

Options

• Aalpha1v1, beta3v3, v2
• Balpha1, beta3, v2
• Cv1alpha1, v2beta3, v2
• Dv1alpha1, v2beta3, 2.0

Explanation

Kubernetes API versions typically follow a specific pattern, combining a version (e.g., v1, v2) with an optional stability indicator like alpha or beta and its release number.

Common mistakes.

• A. alpha1v1 and beta3v3 are incorrect formats; the version number typically precedes the alpha/beta tag, as in v1alpha1.
• B. alpha1 and beta3 are incomplete and incorrect formats for Kubernetes API versions; they lack the preceding 'v' and the primary version number (e.g., v1).
• D. 2.0 is not a standard Kubernetes API version format; API versions use 'v' followed by an integer, and potentially alpha or beta suffixes.

Concept tested. Kubernetes API versioning syntax

Reference. https://kubernetes.io/docs/concepts/overview/kubernetes-api/

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