KCNA Kubernetes Fundamentals Practice Question
Which of the following is a correct apiVersion for a Deployment in a modern Kubernetes cluster (v1.19+)?
⚠ Common exam trap
Many candidates confuse the core `v1` API group (used for Pods) with the `apps/v1` group required for Deployments, or mistakenly think that beta versions like `apps/v1beta1` are still valid in modern clusters.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
apiVersion: apps/v1
`apps/v1` is the stable API version for Deployments in Kubernetes v1.19+, replacing the deprecated `extensions/v1beta1` and `apps/v1beta1` versions. The `apps/v1` API group provides the full set of features for Deployments, including rolling updates, rollbacks, and scaling, and is required for production clusters running v1.19 or later.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
apiVersion: extensions/v1beta1
Why it's wrong here
extensions/v1beta1 is deprecated.
- ✗
apiVersion: v1
Why it's wrong here
v1 is for core objects like Pods, not Deployments.
- ✓
apiVersion: apps/v1
Why this is correct
apps/v1 is the current stable version for Deployments.
- ✗
apiVersion: apps/v1beta1
Why it's wrong here
apps/v1beta1 is deprecated and removed in newer versions.
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