CKAD Services and Networking Practice Question
Which of the following Service types exposes a pod on a static port on each node's IP address?
⚠ Common exam trap
Many exam-takers confuse NodePort with LoadBalancer, thinking LoadBalancer also exposes a static port on each node, but LoadBalancer actually relies on NodePort internally and adds an external LB, not a direct per-node static port 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
✓
NodePort
NodePort is the correct answer because it exposes a pod on a static port (in the range 30000-32767) on every node's IP address. When a Service of type NodePort is created, Kubernetes opens that port on all nodes in the cluster, forwarding traffic to the target pods. This allows external access to the pod via any node's IP and the assigned static port.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
LoadBalancer
Why it's wrong here
LoadBalancer exposes the Service externally using a cloud provider's load balancer.
- ✗
ExternalName
Why it's wrong here
ExternalName maps the Service to an external DNS name.
- ✗
ClusterIP
Why it's wrong here
ClusterIP exposes the Service only within the cluster.
- ✓
NodePort
Why this is correct
NodePort exposes the Service on each Node's IP at a static port.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CKAD 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 CKAD exam.