This CKAD practice question tests your understanding of services and networking. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A developer wants to expose a set of Pods on a specific port on each node's IP. Which Service type should be used?
LoadBalancer
Why wrong: LoadBalancer uses cloud LB; NodePort is simpler for on-node exposure.
ClusterIP
Why wrong: ClusterIP is only reachable from within the cluster.
NodePort
NodePort exposes on each node's IP at a static port.
ExternalName
Why wrong: ExternalName is for DNS aliasing, not port exposure.
Answer choices
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 Service type because it exposes each Pod's port on a static port (the NodePort) on every node's IP address. This allows external traffic to reach the Pods by accessing any node's IP on that specific port, fulfilling the requirement to expose the Pods on a per-node IP basis.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
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 uses cloud LB; NodePort is simpler for on-node exposure.
ClusterIP
Why it's wrong here
ClusterIP is only reachable from within the cluster.
NodePort
Why this is correct
NodePort exposes on each node's IP at a static port.
Related concept
Read the scenario before looking for a memorised answer.
ExternalName
Why it's wrong here
ExternalName is for DNS aliasing, not port exposure.
Common exam traps
The trap here is that candidates often confuse NodePort with LoadBalancer, thinking LoadBalancer is needed for external access, but the question specifically asks for exposure on each node's IP, which is exactly what NodePort provides without requiring a cloud load balancer.
Detailed technical explanation
When a NodePort Service is created, Kubernetes allocates a port from the default range 30000-32767 on every node, and kube-proxy configures iptables or IPVS rules to forward traffic from that port to the Service's ClusterIP and then to the Pods. A subtle behavior is that the NodePort is accessible on any node's IP, even if no Pod is running on that node, because kube-proxy routes traffic to a Pod on another node (unless externalTrafficPolicy is set to Local). This is critical in bare-metal or on-premises deployments where a cloud load balancer is not available.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the CKAD exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Services and Networking — study guide chapter
Learn the concepts, then practise the questions
Services and Networking practice questions
Targeted practice on this topic area only
All CKAD questions
991 questions across all exam domains
Certified Kubernetes Application Developer CKAD study guide
Full concept coverage aligned to exam objectives
CKAD practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise CKAD questions linked to Application Design and Build.
Practise CKAD questions linked to Application Deployment.
Practise CKAD questions linked to Application Environment, Configuration and Security.
Practise CKAD questions linked to Application Observability and Maintenance.
Practise CKAD questions linked to Services and Networking.
Practise CKAD questions linked to CKAD fundamentals.
Practise CKAD questions linked to CKAD scenario.
Practise CKAD questions linked to CKAD troubleshooting.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Services and Networking — This question tests Services and Networking — Read the scenario before looking for a memorised answer..
The correct answer is: NodePort — NodePort is the correct Service type because it exposes each Pod's port on a static port (the NodePort) on every node's IP address. This allows external traffic to reach the Pods by accessing any node's IP on that specific port, fulfilling the requirement to expose the Pods on a per-node IP basis.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Last reviewed: Jun 11, 2026
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.