KCNA Kubernetes Fundamentals Practice Question
Which TWO of the following are benefits of using a Deployment over managing ReplicaSets directly? (Choose two.)
⚠ Common exam trap
A common misconception is that Deployments are suitable for stateful workloads or provide direct pod networking, when in fact StatefulSets and Services are the correct solutions for those needs.
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
✓
Declarative scaling
Deployments provide a higher-level abstraction that manages ReplicaSets, enabling declarative scaling by simply updating the `replicas` field in the Deployment manifest. This allows Kubernetes to automatically adjust the number of pods without manual ReplicaSet edits, ensuring the desired state is maintained.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Support for stateful workloads
Why it's wrong here
StatefulSet is for stateful workloads.
- ✓
Declarative scaling
Why this is correct
Deployments allow you to declaratively set replica count.
- ✗
Direct access to pod IP addresses
Why it's wrong here
Both do not provide direct IP access.
- ✓
Automatic rolling updates and rollbacks
Why this is correct
Deployments manage ReplicaSets to enable rolling updates.
- ✗
Ability to run a pod on every node
Why it's wrong here
That's a DaemonSet.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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