KCNA Container Orchestration Practice Question
Which TWO of the following are valid ways to expose a set of pods as a network service in Kubernetes?
⚠ Common exam trap
The KCNA exam often tests the misconception that Ingress or NetworkPolicy can directly expose pods as a network service, but Ingress requires a Service backend and NetworkPolicy only controls traffic, not exposure.
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
✓
Service of type NodePort
A Service of type NodePort exposes a set of pods on a static port on each node's IP address, making the service accessible from outside the cluster. This is a valid Kubernetes resource for exposing pods as a network service, as it creates a mapping from a node port to the ClusterIP and then to the target pods.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Service of type NodePort
Why this is correct
NodePort exposes the service on each node's IP at a static port.
- ✗
NetworkPolicy
Why it's wrong here
NetworkPolicy controls traffic, does not expose services.
- ✓
Service of type ClusterIP
Why this is correct
ClusterIP exposes the service on a cluster-internal IP.
- ✗
Ingress resource
Why it's wrong here
Ingress provides HTTP routing, not a direct service endpoint for protocols other than HTTP.
- ✗
Deployment with replicas
Why it's wrong here
Deployment does not expose a network endpoint.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This KCNA practice question is part of Courseiva's free CNCF certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the KCNA exam.