KCNA Kubernetes Fundamentals Practice Question
Which two of the following are valid ways to expose a set of Pods to external traffic?
⚠ Common exam trap
A common misconception is that an Ingress resource can function without an underlying Service, but Ingress only provides routing and must point to a Service to reach Pods.
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
✓
Create a Service of type NodePort
A Service of type NodePort exposes each Pod's port on a static port (the NodePort) on every node's IP address, allowing external traffic to reach the Pods via <NodeIP>:<NodePort>. This is a valid method for exposing a set of Pods to external traffic without requiring a cloud load balancer.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Create a Service of type NodePort
Why this is correct
NodePort exposes the Service on each node's IP at a static port.
- ✗
Use a ConfigMap to expose the Pods
Why it's wrong here
ConfigMap does not expose network endpoints.
- ✗
Create an Ingress resource without a Service
Why it's wrong here
Ingress requires a Service backend.
- ✓
Create a Service of type LoadBalancer
Why this is correct
LoadBalancer provisions an external load balancer.
- ✗
Create a Service of type ClusterIP
Why it's wrong here
ClusterIP is only reachable within the cluster.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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