CKAD Services and Networking Practice Question
Which TWO are valid Service types? (Choose two.)
⚠ Common exam trap
It's easy for candidates to confuse Ingress or Headless as separate Service types, when in fact Ingress is a separate resource and Headless is a ClusterIP variant, not a distinct type.
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
✓
NodePort
A is correct because NodePort is a standard Kubernetes Service type that exposes a Service on a static port (30000-32767) on each Node's IP address, allowing external traffic to reach the Service. It works by opening that port on every node and routing traffic to the ClusterIP Service, which then forwards to the 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.
- ✓
NodePort
Why this is correct
Valid type.
- ✗
Headless
Why it's wrong here
Headless is a configuration (clusterIP: None), not a type.
- ✗
Ingress
Why it's wrong here
Ingress is not a Service type; it's a separate resource.
- ✓
ClusterIP
Why this is correct
Valid type.
- ✗
Pod
Why it's wrong here
Not a Service type.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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